Electrocatalytic water splitting (h2O → H2+½ O2)

William A. Goddard

doi:10.1007/978-3-030-18778-1_65

Electrocatalytic water splitting (h₂O → H₂+½ O₂)

William A. Goddard

California Institute of Technology

Résultats de recherche: Le chapitre dans un livre, un rapport, une anthologie ou une collection › Chapitre › Revue par des pairs

Résumé

Artificial photosynthesis (AP) using solar energy to convert H₂O into H₂ (a fuel) and O₂ is a most promising approach to a carbon-neutral cycle and scalable energy storage. Electrocatalysis provides an attractive candidate route to AP, which could extend to all intermittent renewable energy resources. A major challenge in renewable energy technology is water splitting, which uses solar radiation to photoelectrochemically convert water molecules into H₂ (a fuel) and O₂. Here both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) present challenges for the catalysts. The detailed reaction mechanisms had not yet been established for either one. We did the first mechanisms under electrochemical conditions and including free energy reaction barriers for the transition states for both systems. Here we separately consider the two electrochemical half-reactions, HER and OER, which require drastically different catalysts for optimal performance.

langue originale	Anglais
titre	Springer Series in Materials Science
Editeur	Springer Science and Business Media Deutschland GmbH
Pages	1257-1264
Nombre de pages	8
Les DOIs	https://doi.org/10.1007/978-3-030-18778-1_65
état	Publié - 1 janv. 2021
Modification externe	Oui

Série de publications

Nom	Springer Series in Materials Science
Volume	284
ISSN (imprimé)	0933-033X
ISSN (Electronique)	2196-2812

SDG des Nations Unies

Ce résultat contribue à ou aux Objectifs de développement durable suivants

SDG 7 Énergie abordable et propre

Accès au document

10.1007/978-3-030-18778-1_65

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Contient cette citation

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