Publication date: 15th December 2014
Nanoscale catalytic materials are key components of dark electrolytic and photoelectrochemical devices for storing and converting solar energy. Their successful development and optimization requires insight into the relations between atomic-scale structure of the catalytic interface and its catalytic activity and stability. In this talk, I will highlight some of our recent work on the design and understanding of electrocatalytic nanomaterials(1-9) and their liquid-solid interface at the atomic-scale. I will outline the preparation, characterization, and catalytic performance of oxidic nanomaterials for water splitting and discuss fundamental aspects of their structure-activity relationships.
1. T. Reier, D. Teschner, T. Lunkenbein, A. Bergmann, S. Selve, R. Kraehnert, R. Schlogl, P. Strasser, Electrocatalytic Oxygen Evolution on Iridium Oxide: Uncovering Catalyst-Substrate Interactions and Active Iridium Oxide Species. J. Electrochem. Soc. 161, F876-F882 (2014)
.2. H. N. Nong, L. Gan, E. Willinger, D. Teschner, P. Strasser, IrOx core-shell nanocatalysts for cost- and energy-efficient electrochemical water splitting. Chem. Sci. 5, 2955-2963 (2014).
3. S. Cherevko, T. Reier, A. R. Zeradjanin, Z. Pawolek, P. Strasser, K. J.J.Mayrhofer, Stability of nanostructured iridium oxide electrocatalysts during oxygen evolution reaction in acidic environment. Electrochem. Commun. 48, 81-85 (2014).
4. B. Johnson, F. Girgdies, G. Weinberg, D. Rosenthal, A. Knop-Gericke, R. Schlögl, T. Reier, P. Strasser, Suitability of Simplified (Ir,Ti)Ox Films for Characterization during Electrocatalytic Oxygen Evolution Reaction. J. Phys. Chem. C 117, 25443-25450 (2013).
5. T. Reier, M. Oezaslan, P. Strasser, Electrocatalytic Oxygen Evolution Reaction (OER) on Ru, Ir, and Pt Catalysts: A Comparative Study of Nanoparticles and Bulk Materials. ACS Catal. 2, 1765-1772 (2012).
6. E. Ortel, T. Reier, P. Strasser, R. Kraehnert, Mesoporous IrO2 Films Templated by PEO-PB-PEO Block-Copolymers: Self-Assembly, Crystallization Behavior, and Electrocatalytic Performance. Chem. Mat. 23, 3201-3209 (2011)10.1021/cm200761f).
7. R. Forgie, G. Bugosh, K. C. Neyerlin, Z. Liu, P. Strasser, Bimetallic Ru Electrocatalysts for the OER and Electrolytic Water Splitting in Acidic Media. Electrochem. Solid-State Lett. 13, B36 (2010).
8. H. Dau, C. Limberg, T. Reier, M. Risch, S. Roggan, P. Strasser, The Mechanism of Water Oxidation: From Electrolysis via Homogeneous to Biological Catalysis. ChemCatChem 2, 724-761 (2010).
9. K. C. Neyerlin, G. Bugosh, R. Forgie, Z. Liu, P. Strasser, Combinatorial Study of High-Surface-Area Binary and Ternary Electrocatalysts for the Oxygen Evolution Reaction. J. Electrochem. Soc. 156, B363-B369 (2009).
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