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Electrocatalytic Water Splitting (H₂O → H₂+½ O₂)

Goddard, William A., III (2021) Electrocatalytic Water Splitting (H₂O → H₂+½ O₂). In: Computational Materials, Chemistry, and Biochemistry: From Bold Initiatives to the Last Mile. Springer Series in Materials Science. No.284. Springer International Publishing , Cham, pp. 1257-1264. ISBN 978-3-030-18777-4.

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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.

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Goddard, William A., III0000-0003-0097-5716
Alternate Title:Electrocatalytic Water Splitting (H2O → H2+½ O2)
Additional Information:© Springer Nature Switzerland AG 2021. First Online: 26 January 2021.
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Series Name:Springer Series in Materials Science
Issue or Number:284
Record Number:CaltechAUTHORS:20210127-075413944
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107755
Deposited By: Tony Diaz
Deposited On:27 Jan 2021 18:27
Last Modified:16 Nov 2021 19:06

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