A discussion on the possible involvement of singlet oxygen in oxygen electrocatalysis
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Other documents of the author: Chen, Gao; Sun, Yuanmiao; Chen, Riccardo Ruixi; Biz, Chiara; Fisher, Adrian; Sherburne, Matthew; Ager, Joel; Gracia, Jose; Xu, Zhichuan J
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comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
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Title
A discussion on the possible involvement of singlet oxygen in oxygen electrocatalysisAuthor (s)
Date
2021-05-11Publisher
IOP PublishingISSN
2515-7655Bibliographic citation
Chen, G., Sun, Y., Chen, R. R., Biz, C., Fisher, A. C., Sherburne, M. P., ... & Xu, Z. J. (2021). A discussion on the possible involvement of singlet oxygen in oxygen electrocatalysis. Journal of Physics: Energy, 3(3), 031004.Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionAbstract
The dioxygen molecule has two bound states, singlet and triplet, which are different in energy, lifetime, and reactivity. In the context of oxygen electrocatalysis as applied to fuel cells and water splitting the ... [+]
The dioxygen molecule has two bound states, singlet and triplet, which are different in energy, lifetime, and reactivity. In the context of oxygen electrocatalysis as applied to fuel cells and water splitting the involved O2 is typically considered to be exclusively in its triplet ground state. However, applying spin-conservation rules for the transformation between triplet O2 and singlet OH−/H2O reaction intermediates predicts an additional free energy barrier associated with the required spin flip. As a result, for conditions under which both can form, the formation of triplet dioxygen from the singlet OH−/H2O might be slower than the formation of singlet O2. Correspondingly, singlet O2 might be more active than triplet O2 in the oxygen reduction reaction. Here, we discuss the possible existence and influence of singlet oxygen in oxygen electrocatalysis. Some perspectives for studying singlet oxygen in oxygen electrocatalysis are also provided. [-]
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J. Phys. Energy 3 (2021) 031004Funder Name
Singapore National Research Foundation | The Cambridge Center for Carbon Reduction in Chemical Technology | Singapore Ministry of Education
Project code
MOE2018-T2-2-027 | 2019-T1-002-125
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info:eu-repo/semantics/openAccess
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- INAM_Articles [515]
Except where otherwise noted, this item's license is described as © 2021 The Author(s). Published by IOP Publishing Ltd
Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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