Journal Article

FZJ-2021-05849

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Statistical Treatment of Activity and Durability of Electrocatalysts with Distributed Binding Energies

Huang, J. (Corresponding author)FZJ*

2021
IOP Publishing Bristol

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Please use a persistent id in citations: http://hdl.handle.net/2128/30313  doi:10.1149/1945-7111/ac0362

Abstract: We present a statistical treatment of the catalytic activity and durability of nonhomogeneous electrocatalysts that possess distributed binding energies of reaction intermediates. The treatment is simple, generic, and amenable to analytical solutions. It is revealed that the highest overall catalytic activity is obtained with a suitable level of nonhomogeneity that is commensurate with the average property. The evolution of the binding energy distribution is described by the Fokker-Planck theory. Exponential decay of the catalytic activity is predicted theoretically and confirmed experimentally. The exponential decay shows one- or two stages, depending on the initial distribution properties. The present work represents a step toward closing the gap between ideal and practical electrocatalysts using statistical considerations.

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Contributing Institute(s):

1. IEK-13 (IEK-13)

Research Program(s):

1. 1231 - Electrochemistry for Hydrogen (POF4-123) (POF4-123)

Appears in the scientific report 2021

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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