Electrochemical catalyst-support interactions (CSI) of oxide-supported oxygen evolution reaction (OER) catalysts and their impact on catalyst activity and corrosion stability
Final Report Abstract
Developments in water electrolysis technology are of great importance for future energy conversion and storage applications. Proton exchange membrane (PEM) water electrolyzers are attracting particular interest for the production of green hydrogen for industry, energy storage, mobile, and heating applications. A big obstacle that currently limits their performance is the sluggish rate of the electrocatalytic oxygen evolution reaction (OER) at the PEM electrolyzer anode. This project identified and characterized CSI effects in oxide-supported Ir/IrOx OER catalysts. A physical band structure model accounting for the CSI was put forward. The project also explored new low-Ir catalyst concepts and materials (doped Ir oxides and supported Ir oxides), and has yielded new Ir cost-effective catalyst candidates. In addition, this project has revealed a previously elusive, new mechanistic kinetic description of the OER process. Unlike conventional electrocatalytic interfacial processes the rate of which responds directly to the interfacial electric field, the OER on Ir oxides has revealed a direct dependence of the pseudocapacitive surface charge. The results of this project were communicated in numerous scientific journal papers and communicated at several national and international scientific conferences.
Publications
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Carbon-Supported IrCoO nanoparticles as an efficient and stable OER electrocatalyst for practicable CO2 electrolysis. Applied Catalysis B: Environmental, 269, 118820.
Lee, Woong Hee; Nong, Hong Nhan; Choi, Chang Hyuck; Chae, Keun Hwa; Hwang, Yun Jeong; Min, Byoung Koun; Strasser, Peter & Oh, Hyung-Suk
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Key role of chemistry versus bias in electrocatalytic oxygen evolution. Nature, 587(7834), 408-413.
Nong, Hong Nhan; Falling, Lorenz J.; Bergmann, Arno; Klingenhof, Malte; Tran, Hoang Phi; Spöri, Camillo; Mom, Rik; Timoshenko, Janis; Zichittella, Guido; Knop-Gericke, Axel; Piccinin, Simone; Pérez-Ramírez, Javier; Cuenya, Beatriz Roldan; Schlögl, Robert; Strasser, Peter; Teschner, Detre & Jones, Travis E.
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Accelerated Degradation Protocols for Iridium-Based Oxygen Evolving Catalysts in Water Splitting Devices. Journal of The Electrochemical Society, 168(3), 034508.
Spöri, Camillo; Brand, Cornelius; Kroschel, Matthias & Strasser, Peter
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Molecular Analysis of the Unusual Stability of an IrNbOx Catalyst for the Electrochemical Water Oxidation to Molecular Oxygen (OER). ACS Applied Materials & Interfaces, 13(3), 3748-3761.
Spöri, Camillo; Falling, Lorenz J.; Kroschel, Matthias; Brand, Cornelius; Bonakdarpour, Arman; Kühl, Stefanie; Berger, Dirk; Gliech, Manuel; Jones, Travis E.; Wilkinson, David P. & Strasser, Peter
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Catalyst–Support Surface Charge Effects on Structure and Activity of IrNi-Based Oxygen Evolution Reaction Catalysts Deposited on Tin-Oxide Supports. Chemistry of Materials, 34(21), 9350-9363.
Tran, Hoang Phi; Nong, Hong Nhan; Oh, Hyung-Suk; Klingenhof, Malte; Kroschel, Matthias; Paul, Benjamin; Hübner, Jessica; Teschner, Detre & Strasser, Peter
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Iridium single atoms incorporated in Co3O4 efficiently catalyze the oxygen evolution in acidic conditions. Nature Communications, 13(1).
Zhu, Yiming; Wang, Jiaao; Koketsu, Toshinari; Kroschel, Matthias; Chen, Jin-Ming; Hsu, Su-Yang; Henkelman, Graeme; Hu, Zhiwei; Strasser, Peter & Ma, Jiwei
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Oxygen Evolution Electrocatalysis in Acids: Atomic Tuning of the Stability Number for Submonolayer IrOx on Conductive Oxides from Molecular Precursors. ACS Catalysis, 13(2), 902-915.
Krivina, Raina A.; Zlatar, Matej; Stovall, T. Nathan; Lindquist, Grace A.; Escalera-López, Daniel; Cook, Amanda K.; Hutchison, James E.; Cherevko, Serhiy & Boettcher, Shannon W.
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Evaluating the stability of Ir single atom and Ru atomic cluster oxygen evolution reaction electrocatalysts. Electrochimica Acta, 444, 141982.
Zlatar, Matej; Nater, Darryl; Escalera-López, Daniel; Joy, Rani Mary; Pobedinskas, Paulius; Haenen, Ken; Copéret, Christophe & Cherevko, Serhiy
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Spatially and Chemically Resolved Visualization of Fe Incorporation into NiO Octahedra during the Oxygen Evolution Reaction. Journal of the American Chemical Society, 145(39), 21465-21474.
Yang, Fengli; Lopez, Luna Mauricio; Haase, Felix T.; Escalera-López, Daniel; Yoon, Aram; Rüscher, Martina; Rettenmaier, Clara; Jeon, Hyo Sang; Ortega, Eduardo; Timoshenko, Janis; Bergmann, Arno; Chee, See Wee & Roldan, Cuenya Beatriz
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Standardizing OER Electrocatalyst Benchmarking in Aqueous Electrolytes: Comprehensive Guidelines for Accelerated Stress Tests and Backing Electrodes. ACS Catalysis, 13(23), 15375-15392.
Zlatar, Matej; Escalera-López, Daniel; Rodríguez, Miquel Gamón; Hrbek, Tomáš; Götz, Carina; Mary, Joy Rani; Savan, Alan; Tran, Hoang Phi; Nong, Hong Nhan; Pobedinskas, Paulius; Briega-Martos, Valentín; Hutzler, Andreas; Böhm, Thomas; Haenen, Ken; Ludwig, Alfred; Khalakhan, Ivan; Strasser, Peter & Cherevko, Serhiy
