Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/156851
Title: Manipulating the local coordination and electronic structures for efficient electrocatalytic oxygen evolution
Authors: Wu, Zhi-Peng
Zhang, Huabin
Zuo, Shouwei
Wang, Yan
Zhang, Song Lin
Zhang, Jing
Zang, Shuang-Quan
Lou, David Xiong Wen
Keywords: Engineering::Chemical engineering
Engineering::Materials
Issue Date: 2021
Source: Wu, Z., Zhang, H., Zuo, S., Wang, Y., Zhang, S. L., Zhang, J., Zang, S. & Lou, D. X. W. (2021). Manipulating the local coordination and electronic structures for efficient electrocatalytic oxygen evolution. Advanced Materials, 33(40), 2103004-. https://dx.doi.org/10.1002/adma.202103004
Project: MOE2019-T2-2-049
Journal: Advanced Materials
Abstract: 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.
URI: https://hdl.handle.net/10356/156851
ISSN: 0935-9648
DOI: 10.1002/adma.202103004
Rights: This is the peer reviewed version of the following article: Wu, Z., Zhang, H., Zuo, S., Wang, Y., Zhang, S. L., Zhang, J., Zang, S. & Lou, D. X. W. (2021). Manipulating the local coordination and electronic structures for efficient electrocatalytic oxygen evolution. Advanced Materials, 33(40), 2103004-, which has been published in final form at https://doi.org/10.1002/adma.202103004. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: embargo_20221014
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Journal Articles

Files in This Item:
File Description SizeFormat 
4-AM-NiFeSe2 for OER.pdf
  Until 2022-10-14
1.02 MBAdobe PDFUnder embargo until Oct 14, 2022

Page view(s)

23
Updated on Jul 4, 2022

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.