Acid anion electrolyte effects on platinum for oxygen and hydrogen electrocatalysis

Gaurav Ashish Kamat; José A. Zamora Zeledón; G. T. Kasun Kalhara Gunasooriya; Samuel M. Dull; Joseph T. Perryman; Jens K. Nørskov; Michaela Burke Stevens; Thomas F. Jaramillo

doi:10.1038/s42004-022-00635-1

Communications Chemistry (Feb 2022)

Acid anion electrolyte effects on platinum for oxygen and hydrogen electrocatalysis

Gaurav Ashish Kamat,
José A. Zamora Zeledón,
G. T. Kasun Kalhara Gunasooriya,
Samuel M. Dull,
Joseph T. Perryman,
Jens K. Nørskov,
Michaela Burke Stevens,
Thomas F. Jaramillo

Affiliations

Gaurav Ashish Kamat: Department of Chemical Engineering, Stanford University, 443 Via Ortega
José A. Zamora Zeledón: Department of Chemical Engineering, Stanford University, 443 Via Ortega
G. T. Kasun Kalhara Gunasooriya: Catalysis Theory Center, Department of Physics, Technical University of Denmark
Samuel M. Dull: Department of Chemical Engineering, Stanford University, 443 Via Ortega
Joseph T. Perryman: Department of Chemical Engineering, Stanford University, 443 Via Ortega
Jens K. Nørskov: Catalysis Theory Center, Department of Physics, Technical University of Denmark
Michaela Burke Stevens: Department of Chemical Engineering, Stanford University, 443 Via Ortega
Thomas F. Jaramillo: Department of Chemical Engineering, Stanford University, 443 Via Ortega

DOI: https://doi.org/10.1038/s42004-022-00635-1
Journal volume & issue: Vol. 5, no. 1
pp. 1 – 10

Abstract

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Microenvironment engineering through electrolyte optimization is a promising approach to mitigate catalyst poisoning effects in electrochemical systems, but the role of electrolyte anions is not fully understood. Here, in a combined experimental-theoretical evaluation, the authors study the effects of different acidic electrolytes (pH 1) on platinum for hydrogen (HER/HOR) and oxygen electrocatalysis (ORR/OER), finding that oxygen reduction performance can be improved 4-fold using nitric rather than sulfuric acid.

Published in Communications Chemistry

ISSN: 2399-3669 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science: Chemistry
Website: https://www.nature.com/commschem

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