Carbonate formation lowers the electrocatalytic activity of perovskite oxides for water electrolysis

Journal Article · 14 September 2021 · Journal of Materials Chemistry. A

DOI: https://doi.org/10.1039/D1TA03205D · OSTI ID:1806222

Baeumer, Christoph  ^[1]; Liang, Allen Yu-Lun  ^[2]; Trstenjak, Urška  ^[3]; Lu, Qiyang ^[4]; Waser, Rainer  ^[5]; Mefford, J. Tyler  ^[6]; Gunkel, Felix  ^[3]; Nemšák, Slavomír  ^[7]; Chueh, William C.  ^[6]

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1. Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA, Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, Institute of Electronic Materials (IWE2) and JARA-FIT, RWTH Aachen University, 52074 Aachen, Germany, MESA+ Institute for Nanotechnology, University of Twente, Faculty of Science and Technology, 7500 AE Enschede, Netherlands
2. Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, Department of Chemistry, Stanford University, Stanford, CA 94305, USA
3. Peter Gruenberg Institute and JARA-FIT, Forschungszentrum Juelich GmbH, 52425 Juelich, Germany
4. Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA, Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
5. Institute of Electronic Materials (IWE2) and JARA-FIT, RWTH Aachen University, 52074 Aachen, Germany, Peter Gruenberg Institute and JARA-FIT, Forschungszentrum Juelich GmbH, 52425 Juelich, Germany
6. Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA, Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
7. Peter Gruenberg Institute and JARA-FIT, Forschungszentrum Juelich GmbH, 52425 Juelich, Germany, Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

Electrocatalytic activity depends on surface properties and therefore changes on air-exposure. We show that clean LaNiO ₃ OER catalysts are more active than their air-exposed counterparts where surface carbonate groups block the nickel active sites.

• Research Organization: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: Marie Sklodowska-Curie Foundation; National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
• Grant/Contract Number: AC02-05CH11231; AC02-76SF00515
• OSTI ID: 1806222
• Journal Information: Journal of Materials Chemistry. A, Journal Name: Journal of Materials Chemistry. A Journal Issue: 35 Vol. 9; ISSN JMCAET; ISSN 2050-7488
• Publisher: Royal Society of Chemistry (RSC)Copyright Statement
• Country of Publication: United Kingdom
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY