Perspective—Beyond the Century-Long Paradigm of Hydrogen Electrochemistry through the Laviron–Amatore Paradox

Autor: Rafael M. Buoro, Niraja Kurapati, Shigeru Amemiya
Rok vydání: 2020
Předmět:
Zdroj: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
ISSN: 1945-7111
0013-4651
DOI: 10.1149/1945-7111/abc840
Popis: Herein, we advance our fundamental understanding of hydrogen electrochemistry as crucial energy technology by challenging the century-long paradigm that Volmer, Heyrovsky, and Tafel reactions are elementary. We identify and resolve the theoretical controversy of this phenomenological model to argue that each reaction must be stepwise not concerted elementarily. The stepwise model provides unprecedented insights as exemplified by resolving current debates on the Tafel analysis and volcano plot based on the controversial concerted model. The stepwise mechanism has not been distinguished from the concerted mechanism experimentally owing to the Laviron–Amatore paradox, which will be overcome by developing transient nanoelectrochemical methods.
Databáze: OpenAIRE