The Electrocatalysis and Interfaces Group was established in 2012 combining the electrocatalysis activites of the former Fuel Cell Group and the Interface analytical activities of the former Interface and Capacitor Group.
Electrocatalysis is the key topic for electrochemical energy conversion. In order to optimize rate, selectivity, energy and stability of a certain electrochemical reaction - such as oxygen reduction, oxygen evolution, hydrogen oxidation, and CO2 reduction - proper catalysts have to be developed and optimized. The respective surface and interface analytical tools are essential for the understanding of the catalyst and are utilized in the group.
Therefore the activities of the group cover two focal points - Electrocatalysis and Interface analysis including Electrochemical capacitors.
Electrocatalysis - opens new routes towards more efficient fuel cells and other electrochemical processes e.g. CO2 reduction. The group's main topics are investigations of the effect and utilization of oxides as support for O2 reduction catalysts and the optimization of CO2 reduction catalysts. Catalysts for electrolysis and reversible fuel cells are also studied in our group.
Interfaces - Surface analysis is essential for the understanding and optimization of catalytic and electrochemical interfaces and provides information about processes and electronic and molecular properties on a microscopic scale. The main topics at present are catalysis of nano particles and electrocatalysis. We also developed in situ UHV electrochemical cells for in situ studies of the electrolyte|electrode interface, in particular the ionic liquid | electrode interface.
Research on Capacitors, which continues to exist since 1995, concerns exclusively supercapacitors (electrochemical double layer capacitors utilizing very high surface area carbons) as high power electrochemical storage devices. At present the main focus is on carbon based capacitors utilizing organic electrolytes. Topics are degradation mechanisms, ionic liquids as electrolyte and graphene type electrodes.
In addition we provide support for customers within and outside PSI
- Rüdiger Kötz, head
- Tobias Binninger
- Emiliana Fabbri
- Jorge Ferreira de Araujo
- Moritz Hantel
- Mehtap Özaslan
- Annett Rabis
- Sandra Temmel (jointly with Materials Group)
- Simon Tschupp
|Daniel Weingarth||2010 - 2013||INM Leibniz Institute for New Materials|
|Annette Foelske-Schmitz||2004 - 2013|
|Paramaconi Rodriguez||2011 - 2012||University of Birmingham|
|Yuri Sasaki||2010 - 2011||Toyota Central R&D Laboratories, Inc.|
|Anastasia Peitz||2008 - 2011||ABB Schweiz AG, Micafil, Klingnau|
|Dario Cericola||2008 - 2011||TIMCAL Ltd, Bodio|
|Patrick Ruch||2005 - 2009||IBM Research Lab. Zürich|
|Jörg Wambach||2007 - 2009||LBK (PSI)|
|François Loviat||2007 - 2008||Sulzer Ltd|
|Jean-Claude Sauter||2001 - 2007||RUAG Aerospace|
|Matthias Hahn||1999 - 2007||EL-Cell GmbH|
|Olivier Barbieri||2003 - 2006||Applied Materials|
|Flavio Campana||2001 - 2005||Cendres+Métaux SA|
|Carolin Stoessel-Sittig||2002 - 2004|
|Bernhard Schnyder||1991 - 2004||Micro Crystal, Div. of ETA SA|
|Martin Baertschi||1999 - 2001|
|Martin Baertsch||1995 - 2001|
|Dario Aliatta||1997 - 2000||Rudolph Technologies|
|Artur Braun||1996 - 1999||EMPA|
|Pascal Haering||1994 - 1998||Renata SA|
|Melanie Sullivan||1992 - 1996|
|Rainer Michaelis||1993 - 1995||Praxis für Musik-/Klangtherapie|
|Cesar Barbero||1989 - 1994||Universidad Nacional de Rio Cuarto|
|Maria C. Miras||1989 - 1994||Universidad Nacional de Rio Cuarto|
A reliable determination method of stability limits for electrochemical double layer capacitors
Electrochim. Acta 103, 119-124 (2013)DOI: 10.1016/j.electacta.2013.04.057
Investigation of diluted ionic liquid 1-ethyl-3-methyl imidazolium tetrafluoroborate electrolytes for intercalation-like electrodes used in supercapacitors
Electrochim. Acta (2013)DOI: 10.1016/j.electacta.2013.04.032
PTFE bound activated carbon – a quasi reference electrode for ionic liquids and its application
ECS Trans. 50 (11), 111-117 (2013)DOI: 10.1149/05011.0111ecst
Partially reduced graphene oxide paper: A thin film electrode for electrochemical capacitors
J. Electrochem. Soc. 160 (4), A747-A750 (2013)DOI: 10.1149/2.019306jes
Core level data of ionic liquids: Monitoring charging by in situ electrochemical X-ray photoelectron spectroscopy
ECS Electrochemistry Letters 2 (4), H13-H15 (2013)DOI: 10.1149/2.002304eel
Cycle versus voltage hold - Which is the better stability test for electrochemical double layer capacitors?
J. Power Sources 225, 84-88 (2013)DOI: 10.1016/j.jpowsour.2012.10.019
Electrocatalysis for PEFCs: Oxygen reduction on nanoparticles and extended surfaces
MRS Proceedings 1491 (2013)DOI: 10.1557/opl.2012.1738
In-situ electrochemical dilatometry of onion-like carbon and carbon black
Journal of the Electrochemical Society (2012) Vol. 159, Issue 11, Pages A1897-A1903DOI: 10.1149/2.006212jes
In situ electrochemical STM study of platinum nanodot arrays on highly oriented pyrolythic graphite prepared by electron beam lithography
Surface Science 606 (2012) 1922-1933DOI: 10.1016/j.susc.2012.07.040
A Novel Model Electrode for Investigating Ion Transport inside Pores in an Electrical Double-Layer Capacitor: Monodispered Microporous Starburst Carbon Spheres
Electrochimica Acta 81 (2012) 138– 148DOI: 10.1016/j.electacta.2012.07.064
Partially reduced graphite oxide as anode for Li-Capacitors
ECS Electrochemistry Letters Volume 1, Issue 1 (2012) A1-A3DOI: 10.1149/2.005201eel
Electrochemical stability of imidazolium based ionic liquids containing cyano groups in the anion: A cyclic voltammetry, XPS and DFT study
Journal of the Electrochemical Society 159 (7) (2012) H611-H615DOI: 10.1149/2.001207jes
Electrocatalysis for Polymer Electrolyte Fuel Cells: Recent Achievements and Future Challenges
ACS Catalysis 2012, 2, 864-890DOI: 10.1021/cs3000864
Partially reduced graphite oxide as electrode material for electrochemical double layer capacitors
Chemistry European Journal (2012) Volume 18, Issue 29, pages 9125–9136DOI: 10.1002/chem.201200702
Hybridization of rechargeable batteries and electrochemical capacitors: principles and limits.
Electrochimica Acta, 72 (2012) 1-17DOI: 10.1016/j.electacta.2012.03.151
Sputtered Cathodes for Polymer Electrolyte Fuel Cells: Insights into Potentials, Challenges and Limitations
Chimia 66 (2012) 110–119DOI: 10.2533/chimia.2012.110
PTFE bound activated carbon - A quasi-reference electrode for ionic liquids.
Electrochemistry Communications 18 (2012) 116–118DOI: 10.1016/j.elecom.2012.02.040
Novel Electrolytes for Electrochemical Double Layer Capacitors based on 1,1,1,3,3,3-Hexafluoroisopropanol.
Electrochimica Acta 62 (2012) 372-380DOI: 10.1016/j.electacta.2011.12.050
Azolylborates for Electrochemical Double Layer Capacitor Electrolytes.
Zeitschrift für Physikalische Chemie 226 (2012) 141-149DOI: 10.1524/zpch.2012.0174
Electrocatalysis in Polymer Electrolyte Fuel Cells: From Fundamentals to
ApplicationsECS Trans. 2012 volume 45, issue 2, 3-14DOI: 10.1149/1.3701964