Manipulating the Local Coordination and Electronic Structures for Efficient Electrocatalytic Oxygen Evolution
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2022-08-21
Type
ArticleAuthors
Wu, Zhi-Peng
Zhang, Huabin

Zuo, Shouwei
Wang, Yan
Zhang, Song Lin
Zhang, Jing
Zang, Shuang-Quan

Lou, Xiong Wen (David)

KAUST Department
KAUST Catalysis Center Physical Sciences and Engineering Division King Abdullah University of Science and Technology Thuwal 23955–6900 Saudi ArabiaPhysical Science and Engineering (PSE) Division
Date
2021-08-21Online Publication Date
2021-08-21Print Publication Date
2021-10Embargo End Date
2022-08-21Submitted Date
2021-04-20Permanent link to this record
http://hdl.handle.net/10754/670708
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Show full item recordAbstract
Non-noble-metal-based nanomaterials can exhibit extraordinary electrocatalytic performance toward the oxygen evolution reaction (OER) by harnessing the structural evolution during catalysis and the synergistic effect between elements. However, the structure of active centers in bimetallic/multimetallic catalysts is under long-time debate in the catalysis community. Here, an efficient bimetallic Ni–Fe selenide-derived OER electrocatalyst is reported and the structure–activity correlation during the OER evolution studied. By combining experiments and theoretical calculations, a conceptual advance is provided, in that the local coordination structure distortion and disordering of active sites inherited from the pre-catalyst and post-formed by a further reconstruction are responsible for boosting the OER performance. The active center is identified on Ni sites showing moderate bindings with oxygenous intermediates rather than Fe sites with strong and poisonous adsorptions. These findings provide crucial understanding in manipulating the local coordination and electronic structures toward rational design and fabrication of efficient OER electrocatalysts.Citation
Wu, Z., Zhang, H., Zuo, S., Wang, Y., Zhang, S. L., Zhang, J., … Lou, X. W. (David). (2021). Manipulating the Local Coordination and Electronic Structures for Efficient Electrocatalytic Oxygen Evolution. Advanced Materials, 2103004. doi:10.1002/adma.202103004Sponsors
X.W.L. acknowledges the funding support from the Ministry of Education of Singapore through the Academic Research Fund (AcRF) Tier-2 grant (MOE2019-T2-2-049). The National Science Fund for Distinguished Young Scholars (21825106) and the China Postdoctoral Science Foundation (2020M682333) are also acknowledged.Publisher
WileyJournal
Advanced MaterialsAdditional Links
https://onlinelibrary.wiley.com/doi/10.1002/adma.202103004ae974a485f413a2113503eed53cd6c53
10.1002/adma.202103004