Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/92352
Title: Yin-Yang harmony : metal and non-metal dual-doping boosts electrocatalytic activity for alkaline hydrogen evolution
Authors: Xu, Kun
Sun, Yiqiang
Sun, Yuanmiao
Zhang, Yongqi
Jia, Guichong
Zhang, Qinghua
Gu, Lin
Li, Shuzhou
Li, Yue
Fan, Hong Jin
Keywords: Water Splitting
Alkaline Hydrogen Evolution
DRNTU::Science::Chemistry
Issue Date: 2018
Source: Xu, K., Sun, Y., Sun, Y., Zhang, Y., Jia, G., Zhang, Q., … Fan, H. J. (2018). Yin-Yang harmony : metal and non-metal dual-doping boosts electrocatalytic activity for alkaline hydrogen evolution. ACS Energy Letters, 3(11), 2750-2756. doi:10.1021/acsenergylett.8b01893
Series/Report no.: ACS Energy Letters
Abstract: Active site number, water dissociation, and hydrogen adsorption free energy are the three main parameters for regulating the activity of electrocatalysts for hydrogen evolution reaction (HER) in alkaline media. However, at present, simultaneous modulations of these three parameters for alkaline HER still remain challenging. In this work, we take CoP as the model material and demonstrate that a metal and nonmetal dual-doping strategy can achieve simultaneous modulation of these three parameters by inducing lattice irregularity and optimizing the electronic configuration in CoP nanomaterials. Benefiting from the oxygen and copper dual-doping collective effect, the optimized O,Cu–CoP nanowire array electrode shows nearly 10-fold enhancement in catalytic activity for alkaline HER compared to a pure CoP nanowire electrode. Our work may provide a new concept to boost performance of nonprecious metal electrocatalysts for alkaline HER.
URI: https://hdl.handle.net/10356/92352
http://hdl.handle.net/10220/48611
DOI: 10.1021/acsenergylett.8b01893
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Energy Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsenergylett.8b01893
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles
SPMS Journal Articles

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