F. Scheiba, U. Kunz, F. Ettingshausen, C. Roth (eingeladen), 25. ECM in Istanbul, August 2009.

C. Roth, M. Michel, F. Ettingshausen, A. Wolz, A. Weidner, M. Steffan, F. Klasovsky, J. Arras, P. Claus, ”PANI-supported Pt catalysts both in heterogeneous catalysis and fuel cells”, 42. Katalytikertreffen in Weimar, 13. März 2009.

C. Roth,
”Elektrodenstrukturierung in Membranbrennstoffzellen”, ProcessNet, DECHEMA, Karl-Winnacker Haus Frankfurt, 20. Januar 2009.

C. Roth,
Materialien zur Wasserstoffspeicherung, Energiekolloquium, TU Darmstadt, 15. Dezember 2008.

C. Roth,
“Low-temperature fuel cells: Degradation phenomena observed by XAS and TEM”, Chemistry Division seminar, Navy Research Lab, Washington D.C., 24. November 2008.

C. Roth,
“Low-temperature fuel cells: Degradation phenomena observed by XAS and TEM”, Institutsseminar, Department of Chemistry, George Washington University, in Washington D.C., 21. November 2008.

C. Roth,
“Modern in-situ spectroscopic methods in fuel cell research”, 8th European Symposium on Electrochemical engineering in Prag, 25. August 2008 (Carl Wagner Medal of Excellence in Applied Electrochemistry).

C. Roth,
“Modern in-situ spectroscopic methods in fuel cell research”, Institutskolloquium in Bayreuth, 21. August 2008 (eingeladen).

C. Roth,
“Fuel cells: What happens to the catalyst during operation?”, Montagskolloquium des Hochschullehrernachwuchses in Bochum, 26. Mai 2008 (eingeladen).

C. Roth,
“In-situ Röntgenabsorptionsspektroskopie: Die gläserne Brennstoffzelle”, Preisvortrag Colloquia Academica, Akademie der Wissenschaften in Mainz, 18. April 2008 (eingeladen).

C. Roth,
“Fuel cells: Ex situ, in situ and operando studies”, round trip Purdue, Indiana and Illinois University, 30. March bis 5. April 2008 (eingeladen).

C. Roth,
‘The fuel cell from the inside: Catalysts and electrodes before, after and during operation’, Institutskolloquium TU München, Chemie, 22. November 2007 (eingeladen).

C. Roth,
‘In-situ Röntgenabsorptionsspektroskopie: Die Brennstoffzelle in Aktion’, DECHEMA-Hochschullehrernachwuchspreis, Weimar, 15. November 2007 (eingeladen).

C. Roth,
‘Brennstoffzellen: Aktuelle Forschung im Bereich der Nanotechnologie in der Materialwissenschaft’, Ringvorlesung TUD Interdisziplinär, 20 Juli 2007 (eingeladen).

C. Roth, M. Mazurek, N. Benker, F. J. Scott, D. E. Ramaker,
‘Active electroctalysts by modular design’, Russian-German seminar on Catalysis, Novosibirsk, 9-12 Juli 2007 (eingeladen).

C. Roth, F. Scheiba, N. Benker, H. Fuess,
‘Methodische Entwicklungen in der elektronenmikroskopischen Charakterisierung der Membran-Elektroden-Einheit’, Institutsseminar Forschungszentrum Jülich, 26 Juni 2007 (eingeladen).

C. Roth, M. Mazurek, F. Scheiba, N. Benker, H. Fuess
‘An X-ray absorption study of Pt-Ru electrocatalysts subjected to different atmospheres’ 233^rd ACS meeting in Chicago, 25-29 March 2007.

C. Roth, MATFORM-Tag, 11 November 2006.

C. Roth, R. J. Nichols, D. J. Schiffrin,
‘Novel model systems for the investigation of fuel cell catalysts’, German-Italian-Japanese Meeting in Munich, 27-29 September 2006.

C. Roth, F. J. Scott, M. Mazurek, F. Scheiba, H. Fuess, D. E. Ramaker,
‘In-situ XAS investigation of different Pt/Ru anode catalysts’, Krakow, 28 May- 1 June 2006 (eingeladen).

C. Roth, N. Benker, M. Mazurek, F. Scheiba, H. Fuess,
‘Characterization of fuel cell catalysts: what happens during operation?’, ACHEMA, 15 May 2006.

C. Roth, F. Scheiba, N. Benker, M. Scholz, L. Cao, C. Cremers, X. Qiu, U. Stimming, H. Fuess,
‘Developments in the detailed characterization of membrane-electrode assemblies (MEA) for DMFC’, 209th ECS meeting in Denver, 7-12 May 2006 (eingeladen).

C. Roth,
‘In-situ Röntgenabsorptionsmessungen an Pt-Ru Anodenkatalysatoren im Brennstoffzellenbetrieb’, 93. Bunsenkolloquium Schwerin, 16-17 June 2005.

C. Roth (replacement H. Fuess),
‘Challenges in the characterization of supported catalysts’, 207^th ECS meeting in Quebec, 17-22 May 2005.

C. Roth, A. J. Papworth, R. J. Nichols, D. J. Schiffrin,
‘A new Pt/Ru model system to study the bifunctional mechanism’, 207^th ECS meeting in Quebec, 17-22 May 2005.

C. Roth, I. Hussain, M. Bayati, R. J. Nichols, D. J. Schiffrin,
‘Activation of fullerene-Pt nanoparticle assemblies’, 55^th International Society of Electrochemistry ISE (Meeting) in Thessaloniki, 19-24 September 2004.

C. Roth, N. Martz, T. Buhrmester, H. Fuess,
‘In-situ XAS investigation of Pt-Ru fuel cell catalysts during hydrogen and methanol operation’, Society of Chemical Industry (SCI) Conference in Southampton, 14-17 September 2003.

C. Roth, N. Martz, I. MacLaren, H. Fuess,
‘Structure and activity of Pt-based fuel cell catalysts‘, American Chemical Society (ACS) Meeting in New Orleans, 23-27 March 2003 (eingeladen).

C. Roth, N. Martz, F. Hahn, J.-M. Léger, C. Lamy, H. Fuess,
‘Characterization of different Pt-Ru catalysts by spectroscopic and diffraction methods‘, Society of Chemical Industry (SCI) Conference in Loughborough, 16-19 September 2001.

C. Roth, N. Martz, H. Fuess,
‘Characterization of binary and ternary fuel cell catalysts by XRD and TEM‘, European Crystallographic Meeting (ECM) in Nancy, 25-31 August 2000.

C. Roth, N. Martz, M. Götz, H. Wendt, H. Fuess,
‘Charakterisierung ternärer Systeme zur Katalyse der Anodenreaktion in PEM-Brennstoffzellen‘, 99.Bunsentagung in Würzburg, 1-3 June 2000.

Usermeeting HASYLAB in Hamburg, 27-28 Januar 2005

9^th UECT in Ulm, 17-18 Mai 2004

Electrochemical Society (ECS) meeting in Como, 22-25 September 2002

XXXV. Katalytikertagung in Weimar, 20-22 März 2002

XXXIV. Katalytikertagung in Weimar, 21-23 März 2001

Usermeeting HASYLAB in Hamburg, 25-26 Januar 2001

7^th Ulmer Electrochemical Talks (UECT) in Ulm, 26-27 Juni 2000

XXXII. Katalytikertagung in Friedrichroda, 17-19 März 1998