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Type: Journal article
Title: Heteroatom-doped transition metal electrocatalysts for hydrogen evolution reaction
Author: Jin, H.
Liu, X.
Chen, S.
Vasileff, A.
Li, L.
Jiao, Y.
Song, L.
Zheng, Y.
Qiao, S.
Citation: ACS Energy Letters, 2019; 4(4):805-810
Publisher: American Chemical Society
Issue Date: 2019
ISSN: 2380-8195
Statement of
Huanyu Jin, Xin Liu, Shuangming Chen, Anthony Vasileff, Laiquan Li, Yan Jiao, Li Song, Yao Zheng, and Shi-Zhang Qiao
Abstract: Developing efficient and low-cost electrocatalysts for the hydrogen evolution reaction (HER) is important for clean energy systems. Non-noble transition metals are the most promising candidates for replacement of conventional Pt group catalysts for the HER. However, most non-noble metals show poor HER activity due to their intrinsic electronic structures. Herein, we use a multifaceted heteroatom doping method (nitrogen, sulfur, and phosphorus) to directly and continuously fine-tune the electronic structure and HER activity of non-noble metals without changing their chemical composition. As a proof-of-concept, a nitrogen and phosphorus dual-doped Ni catalyst is explored by precisely manipulating doping modes, revealing the best HER performance among all doped Ni catalysts tested. The doping-induced charge redistribution in the Ni metal significantly influences its catalytic performance for the HER in alkaline media, which is confirmed by merging theoretical calculation with synchrotron-based spectroscopy. The principle that can bridge the doping modes and HER activity of the doped catalysts is built with a volcano relationship.
Rights: © 2019 American Chemical Society
RMID: 0030113475
DOI: 10.1021/acsenergylett.9b00348
Grant ID:
Appears in Collections:Chemical Engineering publications

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