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Identification of Surface Reactivity Descriptor for Transition Metal Oxides in Oxygen Evolution Reaction

Tao, Hua Bing, Fang, Liwen, Chen, Jiazang, Yang, Hong Bin, Gao, Jiajian, Miao, Jianwei, Chen, Shengli, Liu, Bin·2016·Journal of the American Chemical Society

Abstract

A number of important reactions such as the oxygen evolution reaction (OER) are catalyzed by transition metal oxides (TMOs), the surface reactivity of which is rather elusive. Therefore, rationally tailoring adsorption energy of intermediates on TMOs to achieve desirable catalytic performance still remains a great challenge. Here we show the identification of a general and tunable surface structure, coordinatively unsaturated metal cation (MCUS), as a good surface reactivity descriptor for TMOs in OER. Surface reactivity of a given TMO increases monotonically with the density of MCUS, and thus the increase in MCUS improves the catalytic activity for weak-binding TMOs but impairs that for strong-binding ones. The electronic origin of the surface reactivity can be well explained by a new model proposed in this work, wherein the energy of the highest-occupied d-states relative to the Fermi level determines the intermediates' bonding strength by affecting the filling of the antibonding states. Our model for the first time well describes the reactivity trends among TMOs, and would initiate viable design principles for, but not limited to, OER catalysts.

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Metadata

Authors
Tao, H. B., Fang, L., Chen, J., Yang, H. B., Gao, J., Miao, J., Chen, S., & Liu, B.
Venue
Journal of the American Chemical Society
Published
2016-08-01
Volume
138
Issue
31
Pages
9978-9985
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2478937906
Cited by
468
References
4
FWCI
7.60
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Identification of Surface Reactivity Descriptor for Transition Metal Oxides in Oxygen Evolution Reaction. https://app.cochat.ai/papers/10.1021/jacs.6b05398
The paper
Tao, H. B., Fang, L., Chen, J., Yang, H. B., Gao, J., Miao, J., Chen, S., & Liu, B. (2016). Identification of Surface Reactivity Descriptor for Transition Metal Oxides in Oxygen Evolution Reaction. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.6b05398

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