IAM - Werkstoffe der Elektrotechnik

Dr.-Ing. Stefan Wagner

  • Institut für Angewandte Materialien ­– Werkstoffe der Elektrotechnik (IAM-WET)
    Adenauerring 20b
    Gebäude 50.40
    D-76131 Karlsruhe

Vorlesungen/Vorlesungsbetreuung
Titel Typ Ort Zeit
Vorlesung (V)
Vorlesung

Engelbert-Arnold Hörsaal (EAS)

Seminar

Geb. 50.40, Raum 318

Veröffentlichungen/Tagungsbeiträge

Veröffentlichungen (Publications)

● V. Weber, M. Meffert, S. Wagner, H. Störmer, L.-S. Unger, E. Ivers-Tiffée, D. Gerthsen, "Influence of B-site doping with Ti and Nb on microstructure and phase constitution of (Ba0.5Sr0.5)(Co0.8Fe0.2)O3-δ", Journal of Materials Science 55 (2020), 947–966 [https://doi.org/10.1007/s10853-019-04102-6].

● M. Meffert, L.-S. Unger, H. Störmer, F. Sigloch, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "The effect of B‐site Y substitution on cubic phase stabilization in (Ba0.5Sr0.5)(Co0.8Fe0.2)O3-δ", Journal of the American Ceramic Society 102 (2019), 4929-4942 [https://doi.org/10.1111/jace.16343].

● L.-S. Unger, R. Ruhl, M. Meffert, C. Niedrig, W. Menesklou, S. F. Wagner, D. Gerthsen, H. J. M. Bouwmeester, E. Ivers-Tiffée, "Yttrium Doping of the Ba0.5Sr0.5Co0.8Fe0.2O3-δ System. Part II: Influence on Oxygen Transport and Phase Stability", Journal of the European Ceramic Society 38 (2018), 2388-2395 [https://doi.org/10.1016/j.jeurceramsoc.2017.12.042].

● L.-S. Unger, C. Niedrig, S. F. Wagner, W. Menesklou, S. Baumann, W. A. Meulenberg, E. Ivers-Tiffée, "Yttrium Doping of the Ba0.5Sr0.5Co0.8Fe0.2O3-δ System. Part I: Influence on Oxygen Permeation, Electrical Properties, Reductive Stability, and Lattice Parameters", Journal of the European Ceramic Society 38 (2018), 2378-2387 [https://doi.org/10.1016/j.jeurceramsoc.2017.12.045].

● M. Meffert, L.-S. Unger, L. Grünewald, H. Störmer, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "The impact of grain size, A/B-cation ratio, and Y-doping on secondary phase formation in (Ba0.5Sr0.5)(Co0.8Fe0.2)O3-δ", Journal of Materials Science 52 (2017), 2705–2719 [https://doi.org/10.1007/s10853-016-0562-8].

● D. Gerthsen, M. Meffert, H. Störmer, V. Wilde, L. Almar, F. Sigloch, L.-S. Unger, S. F. Wagner, E. Ivers-Tiffée, "The Effect of Dopants on the Stabilization of the Cubic BSCF Phase in O2- and CO2-Containing Atmospheres", ECS Transactions 77 (2017), 35-39 [https://doi.org/10.1149/07710.0035ecst].

● L.-S. Unger, M. Meffert, V. Wilde, H. Störmer, C. Niedrig, W. Menesklou, S. F. Wagner, D. Gerthsen, E. Ivers-Tiffée, "Influence of a La0.6Sr0.4CoO3-δ Functional Layer on (Ba0.5Sr0.5)(Co0.8Fe0.2)O3-δ Oxygen Transport Membranes (OTMs)", ECS Transactions 72 (2016), 37-45 [https://doi.org/10.1149/07207.0037ecst].

● K. Asano, C. Niedrig, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "(Ba0.5Sr0.5)(Co0.8Fe0.2)O3-δ Thin Films Derived By Metal-Organic Deposition: Preparation of Nano-scaled Surface Modifications and Electrochemical Characterization", Journal of The Electrochemical Society 163 (2016), F302-F307 [https://doi.org/10.1149/2.0971603jes].

● C. Niedrig, S. F. Wagner, W. Menesklou, S. Baumann, E. Ivers-Tiffée, "Oxygen Equilibration Kinetics of Mixed-Conducting Perovskites BSCF, LSCF, and PSCF at 900 °C Determined by Electrical Conductivity Relaxation", Solid State Ionics 283 (2015), 30-37 [https://doi.org/10.1016/j.ssi.2015.11.004].

● K. Asano, C. Niedrig, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "Modification of Oxygen / (Ba0.5Sr0.5)(Co0.8Fe0.2)O3-δ Interfaces Derived By Metal-Organic Deposition", ECS Transactions 66 (2015), 147-155 [https://doi.org/10.1149/06602.0147ecst].

● C. Niedrig, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Characterization of Oxygen-Dependent Stability of Selected Mixed-Conducting Perovskite Oxides", Solid State Ionics 273 (2015), 41-45 [https://doi.org/10.1016/j.ssi.2014.12.008].  

● M. Meffert, P. Müller, H. Störmer, L.-S. Unger, C. Niedrig, S. F. Wagner, S. Saher, H. Bouwmeester, E. Ivers-Tiffée, D. Gerthsen, "Effect of Yttrium (Y) and Zirconium (Zr) Doping on the Thermodynamical Stability of the Cubic Ba0.5Sr0.5Co0.8Fe0.2O3-δ Phase", Microscopy and Microanalysis 20 (Suppl 3) (2014), 466-467 [https://doi.org/10.1017/S143192761400405X].

● A. Häffelin, C. Niedrig, S. F. Wagner, S. Baumann, W. A. Meulenberg, E. Ivers-Tiffée, "Three-Dimensional Performance Model for Oxygen Transport Membranes", Journal of The Electrochemical Society 161 (2014), F1409-F1415 [https://doi.org/10.1149/2.0601414jes].

● E. Ivers-Tiffée, C. Niedrig, S. F. Wagner, "MIEC Materials for Membrane Applications: Enhancing the Oxygen Transport", ECS Transactions 61 (2014), 283-293 [https://doi.org/10.1149/06101.0283ecst].

● A. Häffelin, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, "Three-Dimensional Performance Model for Oxygen Transport Membranes", ECS Transactions 57 (2013), 2543-2552 [https://doi.org/10.1149/05701.2543ecst].

● P. Müller, H. Störmer, M. Meffert, L. Dieterle, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Secondary Phase Formation in Ba0.5Sr0.5Co0.8Fe0.2O3−δ Studied by Electron Microscopy", Chemistry of Materials 25 (2013), 564-573 [https://doi.org/10.1021/cm303670m].

● C. Niedrig, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "High-Temperature pO2 Stability of Metal Oxides Determined by Amperometric Oxygen Titration", Journal of The Electrochemical Society 160 (2013), F135-F140 [https://doi.org/10.1149/2.063302jes].

● C. Niedrig, P. Braun, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "Investigation of MIEC Materials using an Amperometric Oxygen Titration Method", ECS Transactions 45 (2012), 75-85 [https://doi.org/10.1149/1.3701294].

● C. Niedrig, S. Taufall, M. Burriel, W. Menesklou, S. F. Wagner, S. Baumann, E. Ivers-Tiffée, "Thermal Stability of the Cubic Phase in Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF)", Solid State Ionics 197 (2011), 25-31 [https://doi.org/10.1016/j.ssi.2011.06.010].    

● S. F. Wagner, S. Taufall, C. Niedrig, H. Götz, W. Menesklou, S. Baumann, E. Ivers-Tiffée, "pO2 stability of Ba0.5Sr0.5Co0.8Fe0.2O3-δ", MRS Symp. Proc. Vol. 1309 (2011), 57-64 [https://doi.org/10.1557/opl.2011.419].

● C. Argirusis, F. Jomard, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Study of the Oxygen Incorporation and Diffusion in Sr(Ti0.65Fe0.35)O3 Ceramics", Solid State Ionics 192 (2011), 9-11 [https://doi.org/10.1016/j.ssi.2010.02.016].

● C. Niedrig, S. Taufall, S. F. Wagner, P. Müller, H. Störmer, D. Gerthsen, E. Ivers-Tiffée, "Thermal Stability of mixed ionic-electronic conducting Ba0.5Sr0.5Co0.8Fe0.2O3-δ", in Proc. 1st International Conference on Materials for Energy, Karlsruhe/Germany, Book A: Dechema, 48-50 (2010).

● P. Müller, L. Dieterle, E. Müller, H. Störmer, D. Gerthsen, C. Niedrig, S. Taufall, S. F. Wagner, E. Ivers-Tiffée, "Ba0.5Sr0.5Co0.8Fe0.2O3-δ for Oxygen Separation Membranes", ECS Transactions 28 (2010), 309-314 [https://doi.org/10.1149/1.3495854].

● E. Ivers-Tiffée and S. F. Wagner, "Das Potenzial nanoskaliger Kathoden für die Hochtemperatur-Brennstoffzelle", in Technoseum - Landesmuseum für Technik und Arbeit (Ed.), nano! - Nutzen und Visionen einer neuen Technologie, Mannheim: Technoseum, pp. 190-197 (2010).

● M. Burriel, C. Niedrig, W. Menesklou, S. F. Wagner, J. Santiso, E. Ivers-Tiffée, "BSCF epitaxial thin films: Electrical transport and oxygen surface exchange", Solid State Ionics 181 (2010), 602-608 [https://doi.org/10.1016/j.ssi.2010.03.005].

● P. Müller, H. Störmer, D. Gerthsen, J. Santiso, J. Roqueta, M. Burriel, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, "TEM investigations of mixed ionic/electronic conducting Ba0.5Sr0.5Co0.8Fe0.2O3-δ materials", in W. Grogger, F. Hofer, and P. Pölt (Eds.), Proc. MC2009 3, Graz, Austria: Verlag der TU Graz, pp. 295-296 (2009).

● S. F. Wagner, "Untersuchungen zur Kinetik des Sauerstoffaustauschs an modifizierten Perowskitgrenzflächen", Karlsruhe: Universitätsverlag Karlsruhe (2009), ISBN: 978-3-86644-362-4 (digitally accessible: http://digbib.ubka.uni-karlsruhe.de/volltexte/1000011311).

● S. F. Wagner, C. Warnke, W. Menesklou, C. Argirusis, T. Damjanovic, G. Borchardt, E. Ivers-Tiffée, "Enhancement of oxygen surface kinetics of SrTiO3 by alkaline earth metal oxides", Solid State Ionics 177 (2006), 1607-1612 [https://doi.org/10.1016/j.ssi.2006.04.026].

● C. Argirusis, S. F. Wagner, W. Menesklou, C. Warnke, T. Damjanovic, G. Borchardt, E. Ivers-Tiffée, "Enhancement of oxygen surface exchange kinetics of SrTiO3 by alkaline earth metal oxides", Physical Chemistry Chemical Physics 7 (2005), 3523-3525 [http://dx.doi.org/10.1039/B510834A].

● T. Schneider, C. Peters, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Sr(Ti,Fe)O3-δ Exhaust Gas Sensors", in S. Seal, M.-I. Baraton, C. Parrish, and N. Murayama (Eds.), Semiconductor Materials for Sensing - MRS Symp. Proc. Vol. 828, Warrendale PA, USA (2005), 139-144 [https://doi.org/10.1557/PROC-828-A3.7/K4].

● S. F. Wagner, W. Menesklou, T. Schneider, E. Ivers-Tiffée, "Kinetics of oxygen incorporation into SrTiO3 investigated by frequency-domain analysis", Journal of Electroceramics 13 (2004), 645-651 [https://doi.org/10.1007/s10832-004-5171-2].

● T. Schneider, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Kinetics of Oxygen Exchange in Sr(Ti0.65Fe0.35)O3", in P. Knauth, J.-M. Tarascon, E. Traversa, and H. L. Tuller (Eds.), Solid State Ionics - MRS Symp. Proc. Vol. 756, Warrendale PA, USA (2003), 145-150 [https://doi.org/10.1557/PROC-756-EE9.4].

● S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Kinetics of oxygen exchange in strontium titanate", Ionics 9 (2003), 109-114 [https://doi.org/10.1007/BF02376546].

 

My Open Researcher and Contributor ID (ORCID): https://orcid.org/0000-0001-9737-2246

  

 

Tagungsbeiträge (Presentations at Conferences)

● V. Wilde, L.-S. Unger, M. Meffert, L. Grünewald, H. Störmer, S. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Influence of B-site doping with Ti and Nb on microstructural characteristics and phase constitution of BSCF", poster presentation at the 2018 E-MRS Spring Meeting, Strasbourg/France, June 2018.

● L. Almar, L.-S. Unger, V. Wilde, M. Meffert, C. Niedrig, W. Menesklou, S. F. Wagner, D. Gerthsen, E. Ivers-Tiffée, "Enhancing the Oxygen Transport Kinetics of Phase-Stabilized BSCF Through Nanostructures and Hetero-Interfaces in LSC Thin-Films", invited talk at the 3rd Functional Oxide Thin Films for Advanced Energy Conference, Rome/Italy, July 2017.

● L.-S. Unger, F. Sigloch, V. Wilde, S. Baumann, M. Meffert, C. Niedrig, W. Menesklou, H. Störmer, S. F. Wagner, D. Gerthsen, E. Ivers-Tiffée, "Electrochemical Performance, Oxygen Permeation, and Stability of BSCF:X (X = Y, Ti, or Nb)", oral presentation at the 21st International Conference on Solid State Ionics (SSI-21), Padua/Italy, June 2017.

● L.-S. Unger, V. Wilde, L. Almar, C. Niedrig, W. Menesklou, S. F. Wagner, D. Gerthsen, E. Ivers-Tiffée, "Surface Activation of Y-doped BSCF by Nanoscaled LSC Layers", poster presentation at the 21st International Conference on Solid State Ionics (SSI-21), Padua/Italy, June 2017.

● R. Ruhl, L.-S. Unger, C. Niedrig, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, H. J. M. Bouwmeester, "Influence of Y-doping on long-term stability and oxygen transport of Ba0.5Sr0.5Co0.8Fe0.2O3-δ", oral presentation at the 21st International Conference on Solid State Ionics (SSI-21), Padua/Italy, June 2017.

● M. Meffert, L.-S. Unger, H. Störmer, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Analytical TEM techniques to gain new insights into chemical and structural features of co-doped perovskites", oral presentation at the 21st International Conference on Solid State Ionics (SSI-21), Padua/Italy, June 2017.

● L.-S. Unger, S. Baumann, C. Niedrig, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "Investigation of B-Site Substitution by Y, Ti, or Nb on the Performance of BSCF as Oxygen Separation Membrane", oral presentation at the International Conference on Electroceramics (ICE-17), Nagoya/Japan, May 2017.

● M. Meffert, L.-S. Unger, S. Baumann, C. Niedrig, H. Störmer, W. Menesklou, S. F. Wagner, W. A. Meulenberg, E. Ivers-Tiffée, D. Gerthsen, "Stabilization of the cubic perovskite BSCF phase by Y-doping", oral presentation at the 16th European Microscopy Congress (emc 2016), Lyon/France, August/September 2016.

● L.-S. Unger, M. Meffert, V. Wilde, H. Störmer, C. Niedrig, L. Almar, W. Menesklou, S. F. Wagner, D. Gerthsen, E. Ivers-Tiffée, "Influence of a La0.6Sr0.4CoO3-δ Functional Layer on (Ba0.5Sr0.5)(Co0.8Fe0.2)O3-δ Oxygen Transport Membranes (OTMs)", oral presentation at the 229th Meeting of The Electrochemical Society (ECS) in San Diego CA/USA, May/June 2016.  

● L.-S. Unger, T. Kresse, J. N. Wagner, C. Niedrig, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Atom probe tomography (APT) Analysis of the Grain Boundary Region in Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) and Ba0.5Sr0.5(Co0.8Fe0.2)0.9Y0.1O3-δ (BSCF10Y)", oral presentation at the 2016 E-MRS Spring in Lille/France, May 2016.

● L.-S. Unger, M. Meffert, S. Baumann, C. Niedrig, H. Störmer, W. Menesklou, S. F. Wagner, W. A. Meulenberg, D. Gerthsen, E. Ivers-Tiffée, "Stabilizing the High-Performance Cubic Perovskite Ba0.5Sr0.5Co0.8Fe0.2O3-δ Lattice by Yttrium Doping", poster presentation at the 2016 E-MRS Spring in Lille/France, May 2016.  

● C. Niedrig, L.-S. Unger, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "Oxygen exchange kinetics of select mixed-conducting perovskite oxides determined at 900 °C in an oxygen pump setup", poster presentation at the 2016 E-MRS Spring in Lille/France, May 2016.

● C. Niedrig, L.-S. Unger, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "Slow Conductivity Equilibration of the BSCF System at Intermediate Temperatures and in Reducing Atmospheres", poster presentation at the 2016 E-MRS Spring in Lille/France, May 2016.

● L.-S. Unger, M. Meffert,  S. Baumann, W. A. Meulenberg, W. Menesklou, S. F. Wagner, H. Störmer, D. Gerthsen, E. Ivers-Tiffée, "Stabilization of Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) by Yttrium (Y) Doping", poster presentation at the Summer School "Ionic and protonic conducting seramic membranes for green energy applications", Valencia/Spain, September 2015.

● L. Almar, A. Weber, L.-S. Unger, C. Niedrig, W. Menesklou, S. F. Wagner and E. Ivers-Tiffée, "Oxygen Transport Properties and detailed Electrochemical Analysis of Ba0.5Sr0.5Co0.8Fe0.2O3-δ determined by Impedance Spectroscopy", poster presentation at the Summer School "Ionic and protonic conducting seramic membranes for green energy applications", Valencia/Spain, September 2015.

● L. Grünewald, M. Meffert, H. Störmer, L.-S. Unger, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Electron microscopic characterization of Yttrium-doped BSCF ceramics", poster presentation at the Microscopy Conference MC-2015, Göttingen/Germany, September 2015.

● L.-S. Unger, C. Niedrig, M. Meffert, S. Baumann, H. Störmer, W. Menesklou, S. F. Wagner, W. A. Meulenberg, D. Gerthsen, E. Ivers-Tiffée, "Influence of Yttrium Doping on Ba0.5Sr0.5Co0.8Fe0.2O3-δ", invited talk given at the 20th International Conference on Solid State Ionics (SSI-20), Keystone CO/USA, June 2015.

● L.-S. Unger, C. Niedrig, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "Oxygen Transport in (Ba0.5Sr0.5)(Co0.8Fe0.2)0.9Y0.1O3-δ Determined by ECR Measurements", poster presentation at the 20th International Conference on Solid State Ionics (SSI-20), Keystone CO/USA, June 2015.

● M. Meffert, L.-S. Unger, H. Störmer, C. Niedrig, S. F. Wagner, E. Ivers-Tiffee, D. Gerthsen, "Study of Y-doped (Ba0.5Sr0.5)(Co0.8Fe0.2)O3-d by Analytical Transmission Electron Microscopy", poster presentation at the 20th International Conference on Solid State Ionics (SSI-20), Keystone CO/USA, June 2015. 

● L.-S. Unger, M. Meffert, H. Störmer, W. Menesklou, S. F. Wagner, D. Gerthsen, E. Ivers-Tiffée, "Nanoscaled La0.6Sr0.4CoO3-δ Functional Layer for Enhanced Surface Kinetics of (Ba0.5Sr0.5)(Co0.8Fe0.2)O3-δ Oxygen-Transport Membranes (OTMs)", oral presentation at the 14th International Conference of the European Ceramic Society, Toledo/Spain, June 2015.

● L.-S. Unger, M. Meffert,  S. Baumann, H. Störmer, W. Menesklou, S. F. Wagner, W. A. Meulenberg, D. Gerthsen, E. Ivers-Tiffée, "Effect of Yttrium (Y) doping in Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF)", poster presentation at the 14th International Conference of the European Ceramic Society, Toledo/Spain, June 2015.

● K. Asano, C. Niedrig, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "Modification of Oxygen/(Ba0.5Sr0.5)(Co0.8Fe0.2)O3-δ Interfaces Derived By Metal-Organic Deposition", oral presentation at the 227th  Meeting of The Electrochemical Society (ECS), Chicago IL/USA, May 2015.

● L.-S. Unger, T. Kresse, J. N. Wagner, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Atom probe tomography (APT) on Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) and Ba0.5Sr0.5(Co0.8Fe0.2)0.9Y0.1O3-δ (BSCF10Y)", poster presentation at the EST 2015 – Congress and Exhibition on Energy Science and Technology, Karlsruhe/Germany, May 2015.

● S. F. Wagner, "Efficient Gas Separation with Inorganic Membranes", invited talk given at the 2015 German-American Frontiers of Engineering Symposium (Alexander von Humboldt Foundation/National Academy of Engineering), Potsdam/Germany, April 2015.

● S. F. Wagner, C. Niedrig, A. Häffelin, L.-S. Unger, W. Menesklou, E. Ivers-Tiffée, "Electrochemical Characterization and Performance Modeling of Mixed-Conducting (MIEC) Materials for Oxygen-Transport Membranes", poster presentation at the 2015 German-American Frontiers of Engineering Symposium (Alexander von Humboldt Foundation/National Academy of Engineering), Potsdam/Germany, April 2015. 

● S. F. Wagner, C. Niedrig, E. Ivers-Tiffée, "Electrochemical Characterization and Performance Modeling of MIEC Materials for Oxygen-Transport Membranes", oral presentation at the Materials Science Engineering (MSE 2014) conference, Darmstadt/Germany, September 2014.

● M. Meffert, P. Müller, H. Störmer, L.-S. Unger, C. Niedrig, S. F. Wagner, S. Saher, H. Bouwmeester, E. Ivers-Tiffée, D. Gerthsen, "Effect of yttrium (Y) and zirconium (Zr) doping on the thermodynamical stability of the cubic Ba0.5Sr0.5Co0.8Fe0.2O3-δ phase", poster presentation at the Microscopy & Microanalysis 2014 conference, Hartford CT/USA, August 2014.

● L.-S. Unger, C. Niedrig, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "Stability of Selected Mixed Conducting Perovskite Oxides at Low Oxygen Partial Pressures", poster presentation at the13th International Conference on Inorganic Membranes (ICIM 2014), Brisbane/Australia, July 2014.

● M. Meffert, P. Müller, H. Störmer, L.-S. Unger, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Effect of Yttrium (Y) doping on the thermodynamical stability of the cubic Ba0.5Sr0.5Co0.8Fe0.2O3-δ phase", poster presentation at the 13th International Conference on Inorganic Membranes (ICIM 2014), Brisbane/Australia, July 2014.

● L.-S. Unger, S. Baumann, W. Menesklou, S. F. Wagner, W. A. Meulenberg, E. Ivers-Tiffée, "Oxygen-exchange kinetics, permeation and electrical properties of Y-doped BSCF", oral presentation at the 13th International Conference on Inorganic Membranes (ICIM 2014), Brisbane/Australia, July 2014.

● L.-S. Unger, M. Meffert, H. Störmer, C. Niedrig, S. F. Wagner, W. Menesklou, D. Gerthsen, E. Ivers-Tiffée, "Surface activation of (Ba0.5Sr0.5)(Co0.8Fe0.2)O3-δ by means of a (La0.6Sr0.4)CoO3-δ functional layer", oral presentation at the Electroceramics XIV Conference, Bucharest/Romania, June 2014.

● M. Meffert, P. Müller, H. Störmer, L.-S. Unger, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Effect of yttrium doping on the cubic phase of Ba0.5Sr0.5Co0.8Fe0.2O3-δ studied by electron microscopy", oral presentation at the Electroceramics XIV Conference, Bucharest/Romania, June 2014.

● L.-S. Unger, C. Niedrig, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "pO2 Stability of Mixed Conducting Perovskites", poster presentation at the Electroceramics XIV Conference, Bucharest/Romania, June 2014.

● L.-S. Unger, M. Meffert, C. Niedrig, H. Störmer, W. Menesklou, S. F. Wagner, D. Gerthsen, E. Ivers-Tiffée, "Enhanced Oxygen Surface Reaction in (Ba0.5Sr0.5)(Co0.8Fe0.2)O3-δ by Nanoscaled (La0.6Sr0.4)CoO3-δ Functional Layer", oral presentation at the E-MRS Spring Meeting 2014, Lille/France, May 2014.

● C. Niedrig, L. Wolff, L.-S. Unger, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "High-Temperature Setup for Hall Measurements on Mixed Conductors", poster presentation at the E-MRS Spring Meeting 2014, Lille/France, May 2014.

● C. Niedrig, L. Willms, L.-S. Unger, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "Evaluation of ECR Measurements on MIEC Oxides Performed in an 'Oxygen Pump' Setup", poster presentation at the E-MRS Spring Meeting 2014, Lille/France, May 2014.

● C. Niedrig, L.-S. Unger, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Characterization of Oxygen Stoichiometry Changes of Selected Mixed Conducting Perovskites", poster presentation at the E-MRS Spring Meeting 2014, Lille/France, May 2014.

● E. Ivers-Tiffée, C. Niedrig, S. F. Wagner, "MIEC Materials for Membrane Applications: Enhancing the Oxygen Transport", invited talk given at the IMCC 9 Symposium of the 225th Meeting of The Electrochemical Society (ECS), Orlando FL/USA, May 2014.

● W. Menesklou, A. Häffelin, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, "Electrochemical Characterization and Modeling of Oxygen-Transport Membranes based on MIEC Materials", invited talk given at THERMEC' 2013 - International Conference on Processing & Manufacturing of Advanced Materials, Las Vegas NV/USA, December 2013.  

● L. Unger, C. Niedrig, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Sintering behavior and electrical characterization of (Ba0.5Sr0.5)(Co0.8Fe0.2)1-yXyO3-δ (X = Y, Zr, y = 0.01…0.1)", poster presentation at the MRS Fall Meeting 2013, Boston MA/USA, December 2013.

● A. Häffelin, C. Niedrig, S. Wagner, A. Weber, E. Ivers-Tiffée, "Three-Dimensional Performance Model for Oxygen Transport Membranes", oral presentation at the SOFC-XIII Conference, Okinawa/Japan, October 2013.

● M. Meffert, P. Müller, H. Störmer, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Influence of yttrium doping on the stability of the cubic Ba0.5Sr0.5Co0.8Fe0.2O3-δ phase studied by electron microscopy", poster presentation at the Summer School on "Inorganic membranes for green chemical production and clean power generation", Valencia/Spain, September 2013.

● S. F. Wagner, A. Häffelin, C. Niedrig, W. Menesklou, E. Ivers-Tiffée, "MIEC Materials for Membrane Applications: Electrochemical Characterization and Performance Modeling", invited talk at the Summer School on "Inorganic membranes for green chemical production and clean power generation", Valencia/Spain, September 2013.

● M. Meffert, P. Müller, H. Störmer, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Electron microscopy study of Yttrium-doped Ba0.5Sr0.5Co0.8Fe0.2O3-δ", poster presentation at the Microscopy Conference (MC-2013), Regensburg/Germany, August 2013.

● A. Häffelin, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, "3D performance model for oxygen transport membranes", oral presentation at the 19th International Conference on Solid State Ionics (SSI-19), Kyoto/Japan, June 2013.

● C. Niedrig, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Stability of Selected MIEC Perovskites at Low Oxygen Partial Pressures", poster presentation at the 19th International Conference on Solid State Ionics (SSI-19), Kyoto/Japan, June 2013.

● C. Niedrig, W. Menesklou, S. F. Wagner, C.-Y. Yoo, H. J. M. Bouwmeester, E. Ivers-Tiffée, "Oxygen Transport Parameters of co-doped (Ba0.5Sr0.5)(Co0.8Fe0.2)0.97X0.03O3-δ (X = Y, Zr)", poster presentation at the 19th International Conference on Solid State Ionics (SSI-19), Kyoto/Japan, June 2013.

● M. Meffert, P. Müller, H. Störmer, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Electron Microscopy Study of Yttrium-doped (Ba0.5Sr0.5)(Co0.8Fe0.2)0.97Y0.03O3-δ", oral presentation at the 19th International Conference on Solid State Ionics (SSI-19), Kyoto/Japan, June 2013.

● K. Asano, C. Niedrig, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Characterization of Nanoscale Surface Modifications of (Ba0.5Sr0.5)(Co0.8Fe0.2)O3-δ Thin Films Made by a MOD Method", poster presentation at the 19th International Conference on Solid State Ionics (SSI-19), Kyoto/Japan, June 2013.

● C. Niedrig, W. Menesklou, S. F. Wagner, S. Baumann, E. Ivers-Tiffée, "Oxygen Stoichiometry Changes and pO2-dependent Stability of Selected MIEC Perovskites", oral presentation at the 2nd International Conference on Materials for Energy (EnMat-II), Karlsruhe/Germany, May 2013.

● A. Häffelin, C. Niedrig, J. Joos, S. Wagner, E. Ivers-Tiffée, "3D performance model for mixed conducting membranes", poster presentation at the 2nd International Conference on Materials for Energy (EnMat-II), Karlsruhe/Germany, May 2013.

● M. Meffert, P. Müller, H. Störmer, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Electron microscopy study of Yttrium-doped BSCF", oral presentation at the 2nd International Conference on Materials for Energy (EnMat-II), Karlsruhe/Germany, May 2013.

● C. Niedrig, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "An Amperometric Oxygen Titration Method for pO2 Stability Investigations on High-Temperature MIEC Oxides", poster presentation at the Bunsentagung 2013, Karlsruhe/Germany, May 2013.

● M. Meffert, P. Müller, H. Störmer, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Electron microscopy study of Y-doped BSCF", oral presentation at the DPG-Frühjahrstagung, Regensburg/Germany, March 2013.

● P. Müller, B. Albrecht, H. Störmer, D. Fuchs, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Electron microscopy study of surface-functionalized Ba0.5Sr0.5Co0.8Fe0.2O3-δ membranes for oxygen separation", poster presentation at the 15th European Microscopy Congress, Manchester/UK, September 2012. 

● M. Meffert, P. Müller, H. Störmer, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Electron microscopy study of (Ba0.5Sr0.5)(Co0.8Fe0.2)0.97X0.03O3-δ (X = Zr, Y, Sc)", poster presentation at the 15th European Microscopy Congress, Manchester/UK, September 2012.

● P. Müller, M. Meffert, H. Störmer, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Analysis of co-doped (Ba0.5Sr0.5)(Co0.8Fe0.2)0.97X0.03O3-δ (BSCFX5582, X=Zr, Y, Sc) by Electron Microscopy", poster presentation at the International Conference on Inorganic Membranes (ICIM-2012), Enschede/The Netherlands, July 2012.

● W. Menesklou, C. Niedrig, S. F. Wagner, Ellen Ivers-Tiffée, "Stability and Conductivity vs. Oxygen Partial Pressure of Mixed Ionic-Electronic Conductors", oral presentation at Electronic Materials Conference (EMC), Penn State University, June 2012.

● C. Niedrig, C.-Y. Yoo, W. Menesklou, S. Baumann, S. F. Wagner, H. J. M. Bouwmeester, E. Ivers-Tiffée, "Equilibration Kinetics of Mixed Ionic-Electronic Conducting Materials at Different Oxygen Partial Pressures", oral presentation at Electroceramics-XIII, Enschede/The Netherlands, June 2012.

● P. Müller, M. Meffert, H. Störmer, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Electron Microscopy investigations of zirconium-, yttrium- and scandium-doped (Ba0.5Sr0.5)(Co0.8Fe0.2)0.97X0.03O3-δ (BSCFX5582)", oral presentation at Electroceramics-XIII, Enschede/The Netherlands, June 2012.

● C. Niedrig, P. Müller, W. Menesklou, S. F. Wagner, H. Störmer, D. Gerthsen, E. Ivers-Tiffée, "Enhanced Oxygen Surface Exchange in Ba0.5Sr0.5Co0.8Fe0.2O3-δ", poster presentation at Electroceramics-XIII, Enschede/The Netherlands, June 2012.

● C. Niedrig, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "Stability of Mixed Conducting Perovskites in Reducing Atmospheres", poster presentation at the E-MRS Spring Meeting 2012, Strasbourg/France, May 2012.

● C. Niedrig, P. Braun, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "Coulometric Oxygen Titration: A Method for Stability Investigations on MIEC Materials", oral presentation, 10th International Symposium on Ceramic Materials and Components for Energy and Environmental Applications (CMCEE), Dresden/Germany, May 2012.

● C. Niedrig, P. Braun, W. Menesklou, S. F. Wagner, E. Ivers-Tiffée, "Investigation of MIEC Materials using an Amperometric Oxygen Titration Method", oral presentation, 221st Meeting of The Electrochemical Society (ECS), Seattle, WA/USA, May 2012.

● C. Niedrig, W. Menesklou, S. F. Wagner, W. A. Meulenberg, S. Baumann, E. Ivers-Tiffée, "Influence of Oxygen Partial Pressure on the Conductivity and Stability of Selected MIEC Perovskites", oral presentation, 5th International Conference on Electroceramics (ICE), Sydney/Australia, December 2011.

● C. Niedrig, W. Menesklou, A. Weber, S. F. Wagner, E. Ivers-Tiffée, "Electrochemical properties and stability of MIEC membrane materials", invited oral presentation, 12. Jülicher Werkstoffsymposium (WSP 12): "Gas Separation Membranes for Zero-emission Fossil Power Plants", Jülich/Germany, October 2011.

● P. Müller, H. Störmer, L. Dieterle, C. Niedrig, S. F. Wagner, D. Gerthsen, E. Ivers-Tiffée, "Determination of the Phase Composition in Ba0.5Sr0.5Co0.8Fe0.2O3-δ by means of Electron Microscopy", oral presentation, 18th International Conference on Solid State Ionics (SSI-18), Warsaw/Poland, July 2011.

● C. Niedrig, W. Menesklou, S. F. Wagner, S. Baumann, W. A. Meulenberg, E. Ivers-Tiffée, "Electrical Conductivity and Stability of Selected Perovskite MIEC Materials at Low Oxygen Partial Pressures", oral presentation, 18th International Conference on Solid State Ionics (SSI-18), Warsaw/Poland, July 2011.

● C. Niedrig, W. Menesklou, S. F. Wagner, S. Baumann, W. A. Meulenberg, E. Ivers-Tiffée, "AxSr1-xCoyFe1-yO3-δ (A = La, Ba, Pr) for oxygen-transport membrane applications: Temperature and pO2-dependent conductivity", poster presentation, International Congress on Membranes and Membrane Processes (ICOM), Amsterdam, Netherlands, July 2011.

● C. Niedrig, S. Schütt, W. Menesklou, S. F. Wagner, S. Baumann, W. A. Meulenberg, E. Ivers-Tiffée, "Stability of AxSr1-xCoyFe1-yO3-δ (A = La, Ba, Pr) for oxygen-transport membrane applications", oral presentation, 12th Conference of the European Ceramic Society, Stockholm/Sweden, June 2011.

● C. Niedrig, S. Taufall, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Investigation of thermal and pO2 stability of Ba0.5Sr0.5Co0.8Fe0.2O3-δ for oxygen-transport membranes", poster presentation, 2nd International Conference on Energy Process Engineering (ICEPE), Frankfurt (Main)/Germany, June 2011.

● C. Niedrig, S. F. Wagner, W. Menesklou, W. A. Meulenberg, S. Baumann, E. Ivers-Tiffée, "Conductivity and stability at low pO2 of AxSr1-xCoyFe1-yO3-δ (A = La, Ba, Pr) for gas separation membrane applications", oral presentation, E-MRS Spring Meeting 2011, Nice/France, May 2011.

● C. Niedrig, S. Taufall, H. Götz, S. F. Wagner, W. Menesklou, S. Baumann, E. Ivers-Tiffée, "pO2 stability of Ba0.5Sr0.5Co0.8Fe0.2O3-δ", poster presentation, MRS Fall Meeting 2010, Symposium EE, Boston MA/USA, 29.11. - 03.12.2010.

● S. Taufall, C. Niedrig, H. Götz, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Stability study of mixed-conducting Ba0.5Sr0.5Co0.8Fe0.2O3-δ for oxygen-membrane applications", poster presentation, MEM-BRAIN Summer School 2010: "Ceramic Membranes for Green Chemical Production and Clean Power Generation", Valencia/Spain, 08.09. - 10.09.2010.

● S. Taufall, C. Niedrig, H. Götz, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Stability study of mixed-conducting Ba0.5Sr0.5Co0.8Fe0.2O3-δ for oxygen-membrane applications", poster presentation, 7th International Conference on Inorganic Materials, Biarritz/France, 12.09. - 14.09.2010.

● C. Niedrig, S. Taufall, S. F. Wagner, P. Müller, H. Störmer, D. Gerthsen, E. Ivers-Tiffée, "Thermal Stability of mixed ionic-electronic conducting Ba0.5Sr0.5Co0.8Fe0.2O3-δ", oral presentation, 1st International Conference on Materials for Energy, Karlsruhe/Germany, 04.07. - 08.07.2010.

● C. Niedrig, S. Taufall, S. F. Wagner, E. Ivers-Tiffée, "Stability range of mixed ionic-electronic conducting Ba0.5Sr0.5Co0.8Fe0.2O3-δ", oral presentation, Electroceramics XII, Trondheim/Norway, 13.06. - 16.06.2010.

● C. Niedrig, S. Roitsch, M. Burriel, W. Menesklou, S. F. Wagner, J. Santiso, J. Mayer, E. Ivers-Tiffée, "Oxygen Exchange Kinetics and Structural Stability of Epitaxial Ba0.5Sr0.5Co0.8Fe0.2O3-δ Thin Films", poster presentation, E-MRS Spring Meeting 2010, Strasbourg/France, 07.06. - 11.06.2010.

● C. Niedrig, S. Taufall, S. F. Wagner, E. Ivers-Tiffée, "Ba0.5Sr0.5Co0.8Fe0.2O3-δ for oxygen separation membranes: A study of its thermal and pO2-dependent stability", oral presentation, Innovation for Sustainable Production 2010 (i-SUP2010), Bruges/Belgium, 18.04. - 21.04.2010.

● P. Müller, L. Dieterle, E. Müller, H. Störmer, D. Gerthsen, C. Niedrig, S. Taufall, S. F. Wagner, E. Ivers-Tiffée, "Ba0.5Sr0.5Co0.8Fe0.2O3-δ for Oxygen Separation Membranes", oral presentation, 217th Meeting of The Electrochemical Society (ECS), Vancouver/Canada, 25.04. - 30.04.2010.

● C. Niedrig, M. Burriel, S. Taufall, S. F. Wagner, P. Müller, H. Störmer, D. Gerthsen, E. Ivers-Tiffée, "Transport Properties and Stability Issues of Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF)", oral presentation, 4th International Conference on Electroceramics (ICE-2009), New Delhi/India, 13.12. - 17.12.2009.

● M. Burriel, C. Niedrig, S. Baumann, S. F. Wagner, E. Ivers-Tiffée, "Electrical and Oxygen Transport Properties of Ba0.5Sr0.5Co0.8Fe0.2O3-δ", oral presentation, E-MRS Fall Meeting 2009, Warsaw/Poland, 13.09. - 18.09.2009.

● P. Müller, H. Störmer, D. Gerthsen, J. Santiso, J. Roqueta, M. Burriel, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, "TEM investigations of mixed ionic/electronic conducting Ba0.5Sr0.5Co0.8Fe0.2O3-δ materials", poster presentation, Microscopy Conference 2009, Graz/Austria, 30.08. - 04.09.2009.

● P. Müller, H. Störmer, M. Burriel, C. Niedrig, S. F. Wagner, E. Ivers-Tiffée, D. Gerthsen, "Microstructural and Electrochemical Properties of Mixed Ionic/Electronic Conducting (MIEC) Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) Perovskite Materials", poster presentation, 11th International Fischer Symposium on "Microscopy in Electrochemistry", Benediktbeuern/Germany, 26.07. - 31.07.2009.

● C. Niedrig, M. Burriel López, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Electrochemical Behaviour of Ba0.5Sr0.5Co0.8Fe0.2O3-δ Thin Films", oral presentation, 17th International Conference on Solid State Ionics (SSI-17), Toronto/Canada, 28.06. - 03.07.2009.

● C. Argirusis, S.F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Study of the Oxygen Incorporation and Diffusion in Sr(Ti0.65Fe0.35)O3 Ceramics", poster presentation, 17th International Conference on Solid State Ionics (SSI-17), Toronto/Canada, 28.06. - 03.07.2009.

● S. F. Wagner, C. Argirusis, W. Menesklou, G. Borchardt, E. Ivers-Tiffée, "The Effect of Alkaline Earth Oxide Layers on the Oxygen Exchange Behaviour of Sr(Ti1-xFex)O3-δ", poster presentation, 17th International Conference on Solid State Ionics (SSI-17), Toronto/Canada, 28.06. - 03.07.2009.

● M. Burriel, C. Niedrig, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "A study of the electrochemical properties of Ba0.5Sr0.5Co0.8Fe0.2O3-δ", oral presentation, MRS Fall Meeting 2008, Boston MA/USA, 01.12. - 05.12.2008.

● S. F. Wagner, W. Menesklou, C. Argirusis, G. Borchardt, E. Ivers-Tiffée, "Alkaline Earth Oxide Coatings of Sr(Ti1-xFex)O3-δ: A Study of the Oxygen Exchange Behaviour", oral presentation, Electroceramics XI, Manchester/UK, 01.09. - 03.09.2008.

● S. F. Wagner et al., "MIEC Characterization by Electrochemical Impedance Spectroscopy and Frequency-Domain Analysis of Conductivity Relaxation", invited oral presentation, MEM-BRAIN Summer School 2008, Aachen/Germany, 27.10. - 28.10.2008.

● S. F. Wagner, W. Menesklou, C. Argirusis, G. Borchardt, E. Ivers-Tiffée, "Enhancement of Oxygen Exchange in Sr(Ti1-xFex)O3-δ by Means of Alkaline Earth Oxide Coatings", oral presentation, Materials Science & Technology MS&T'07, Detroit MI/USA, 16.09. - 20.09.2007.

● S. F. Wagner, W. Menesklou, C. Argirusis, G. Borchardt, E. Ivers-Tiffée, "The Influence of Alkaline Earth Oxide PVD Surface Layers on the Oxygen Exchange in Sr(Ti1-xFex)O3-δ", oral presentation, 3rd International Conference on Electroceramics 2007, Arusha/Tanzania, 31.07. - 03.08.2007.

● S. F. Wagner, W. Menesklou, C. Argirusis, G. Borchardt, E. Ivers-Tiffée, "Oxygen Exchange in Strontium Titanate - Influence of PVD Surface Layers", oral presentation, Electroceramics X, Toledo/Spain, 18.06. - 22.06.2006.

● S. F. Wagner, W. Menesklou, C. Argirusis, G. Borchardt, E. Ivers-Tiffée, "Influence of Alkaline Earth Metal Oxide Surface Layers on the Oxygen Exchange in Sr(Ti,Fe)O3", poster presentation, E-MRS Spring Meeting 2006, Nice/France, 29.05. - 02.06.2006.

● W. Menesklou, T. Schneider, S. F. Wagner, E. Ivers-Tiffée, "Resistive Abgassensoren auf der Basis temperaturunabhängiger, halbleitender Oxide", poster presentation, 2. WING-Konferenz (Werkstoffinnovationen für Industrie und Gesellschaft), Aachen/Germany, 09.11. - 11.11.2005.

● T. Schneider, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Sr(Ti,Fe)O3-δ Oxygen Sensors - Operation Range and Stability Limitations", oral presentation, EuroSensors XIX, Barcelona/Spain, 11.09. - 14.09.2005.

● C. Argirusis, S. F. Wagner, C. Warnke, W. Menesklou, T. Damjanovic, G. Borchardt, E. Ivers-Tiffée, "Enhancement of Oxygen Surface Kinetics of SrTiO3 by Alkaline Earth Metal Oxides", oral presentation, 15th International Conference on Solid State Ionics (SSI-15), Baden-Baden/Germany, 17.07. - 22.07.2005.

● S. F. Wagner, W. Menesklou, C. Warnke, E. Ivers-Tiffée, C. Argirusis, T. Damjanovic, G. Borchardt, "Enhancement of Oxygen Incorporation into Strontium Titanate by Alkaline Earth Metal Oxides", poster presentation, Bunsentagung, Frankfurt/Germany, 05.05. - 07.05.2005.

● T. Schneider, C. Peters, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Sr(Ti,Fe)O3-δ exhaust gas sensors", oral presentation, MRS Fall Meeting 2004, Boston MA/USA, 29.11. - 03.12.2004.

● S. F. Wagner, W. Menesklou, L. Merkle, T. Schneider, E. Ivers-Tiffée, "Oxygen Incorporation into SrTiO3: Influence of Sr Surface Coatings", poster presentation, E-MRS Spring Meeting 2004, Strasbourg/France, 24.05. - 28.05.2004.

● T. Schneider, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Temperaturunabhängige, resistive Sr(Ti0,65Fe0,35)O3-Abgassensoren", poster presentation, 1. WING-Konferenz (Werkstoffinnovationen für Industrie und Gesellschaft), Weimar/Germany, 29.10. - 31.10.2003.

● S. F. Wagner, W. Menesklou, T. Schneider, E. Ivers-Tiffée, "Kinetics of Oxygen Incorporation into SrTiO3 Investigated by Frequency-Domain Analysis", oral presentation, 1st International Conference on Electroceramics (ICE), Cambridge MA/USA, 03.08. - 07.08.2003.

● W. Menesklou, T. Schneider, S. F. Wagner, E. Ivers-Tiffée, "Measurement of Fast Gas Sensors", invited presentation, 1st International Conference on Electroceramics (ICE), Cambridge MA/USA, 03.08. - 07.08.2003.

● M. J. Heneka, T. Schneider, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Measuring technique to characterize new exhaust gas sensors", poster presentation, 1st International Conference on Electroceramics (ICE), Cambridge MA/USA, 03.08. - 07.08.2003.

● K. Rembold, T. Schneider, F. Scholl, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "New way to measure kinetics: setup improved by CFD", poster presentation, 1st International Conference on Electroceramics (ICE), Cambridge MA/USA, 03.08. - 07.08.2003.

● T. Schneider, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Temperaturunabhängige, resistive Sr(Ti0,65Fe0,35)O3-Abgassensoren", poster presentation, DKG-Symposium Keramik im Fahrzeugbau, Stuttgart/Germany, 06.05. - 07.05.2003.

● T. Schneider, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Kinetics of Oxygen Exchange in Sr(Ti0.65Fe0.35)O3", poster presentation, MRS Fall Meeting 2002, Boston MA/USA, 02.12. - 06.12.2002.

● T. Schneider, S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Design of temperature-independent exhaust gas sensors", poster presentation, Werkstoffwoche 2002, München, Germany, 30.09. - 03.10.2002.

● S. F. Wagner, W. Menesklou, E. Ivers-Tiffée, "Kinetics of Oxygen Exchange in Strontium Titanate", 9th EuroConference on Ionics,  Ixia, Rhodes/Greece, 15.09. - 21.09.2002.

  

 

 

 

Varia (Selected Other Publications)

● E. Ivers-Tiffée, S. F. Wagner (Eds.), Fridericiana - Zeitschrift der KIT-Fördergesellschaft e.V., Heft 69 (2019).

● E. Ivers-Tiffée, S. F. Wagner, "'Ständige Einrichtung zur Stimulierung des geistigen Lebens' am KIT: die Heinrich-Hertz-Gastprofessur", in Fridericiana - Zeitschrift der KIT-Fördergesellschaft e.V., Heft 69, pp. 37-50 (2019).

● S. F. Wagner, "Forschen - eine Fahrt ins Blaue. Vor 100 Jahren geboren: der Chemiker Rudolf Criegee", UniKaTH 2/2002, p. 71 (2002).

● S. F. Wagner, "'Den Menschen von roher Arbeit entlasten'. Georg Benoit und die Gründung des Instituts für Fördertechnik vor 100 Jahren", UniKaTH 2/2001, p. 72 (2001).

● S. F. Wagner, "Die Universität glänzt auch mit Musik. 25 Jahre Sinfonie- und Kammerorchester an der Universität Karlsruhe", UniKaTH 1/2001, pp. 64-65 (2001).

● S. F. Wagner, "An der Schwelle zum 21. Jahrhundert. Rückblick und Ausblick: Festschrift zum Jubiläum der Universität Karlsruhe", UniKaTH 4/2000, p. 21 (2000).