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Role of Lattice Oxygen Participation in Understanding Trends in the Oxygen Evolution Reaction on Perovskites

Yoo, Jong Suk, Rong, Xi, Liu, Yusu, Kolpak, Alexie M.·2018·ACS Catalysis

Abstract

This study demonstrates the importance of considering lattice oxygen participation in understanding trends in the oxygen evolution reaction (OER) on AB O 3 ( A = lanthanum or strontium, B = transition metal) perovskites. Using density functional theory, we show that the lattice oxygen mechanism (LOM) can lead to higher OER activity than the conventional adsorbate evolving mechanism (AEM) by minimizing the thermodynamically required overpotential. We also show that the OER activity volcano for AEM is universal for all perovskites, whereas that for LOM depends on the identity of the A cation in AB O 3 . This explains experimental observations that perovskites such as Pr 0.5 Ba 0.5 CoO 3−δ and SrCoO 3−δ show higher OER activities than the conventionally predicted optimum compounds such as LaNiO 3 and SrCoO 3 . Furthermore, we show that LOM is preferred to AEM in achieving bifunctional catalysts capable of promoting both OER and ORR. Using our overall activity volcano, we finally suggest several candidate materials that are predicted to be highly active for OER via LOM.

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Metadata

Authors
Yoo, J. S., Rong, X., Liu, Y., & Kolpak, A. M.
Venue
ACS Catalysis
Published
2018-04-17
Volume
8
Issue
5
Pages
4628-4636
ISSN
2155-5435 (ISSN-L)
OpenAlex
W2800843823
Cited by
560
References
9
FWCI
8.48
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Role of Lattice Oxygen Participation in Understanding Trends in the Oxygen Evolution Reaction on Perovskites. https://app.cochat.ai/papers/10.1021/acscatal.8b00612
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Yoo, J. S., Rong, X., Liu, Y., & Kolpak, A. M. (2018). Role of Lattice Oxygen Participation in Understanding Trends in the Oxygen Evolution Reaction on Perovskites. ACS Catalysis. https://doi.org/10.1021/acscatal.8b00612

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