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https://hdl.handle.net/2440/119625
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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.Z. |
Citation: | ACS Energy Letters, 2019; 4(4):805-810 |
Publisher: | American Chemical Society |
Issue Date: | 2019 |
ISSN: | 2380-8195 2380-8195 |
Statement of Responsibility: | 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 |
DOI: | 10.1021/acsenergylett.9b00348 |
Grant ID: | http://purl.org/au-research/grants/arc/DP160104866 http://purl.org/au-research/grants/arc/DE160101163 http://purl.org/au-research/grants/arc/FL170100154 |
Published version: | http://dx.doi.org/10.1021/acsenergylett.9b00348 |
Appears in Collections: | Aurora harvest 8 Chemical Engineering publications |
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