Surface conductance analysis of X-MoS2 (X = Fe, Co, Ni) prepared on graphite felt as bifunctional catalysts for the hydrogen/oxidation evolution reactions

Huiyun Shi; Youyuan Zhang; Ning Pang; Shaohui Xu; Dayuan Xiong; Lianwei Wang; Pingxiong Yang; Paul K. Chu

doi:10.1016/j.electacta.2022.141596

Author(s)

Huiyun Shi
Youyuan Zhang
Ning Pang
Shaohui Xu
Dayuan Xiong
Lianwei Wang
Pingxiong Yang

Related Research Unit(s)

Detail(s)

Original language	English
Article number	141596
Journal / Publication	Electrochimica Acta
Volume	439
Online published	23 Nov 2022
Publication status	Published - 20 Jan 2023

Link(s)

DOI	DOI https://doi.org/10.1016/j.electacta.2022.141596 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85143167400&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(59a9dac7-0224-4e2b-b218-9fafd14c935f).html

Abstract

The surface admittances calculated from electrochemical impedance spectra are used to analyze the surface states of X-MoS₂ (X=Fe, Co, Ni) prepared on graphite felt. Because of the semiconducting properties of Fe-MoS₂ at the electrolyte-semiconductor interface, the bifunctional catalytic properties in the hydrogen/oxidation evolution reactions (HER/OER) are enhanced as a result of better surface adsorption/desorption and slow-changing surface conductance. The surface morphology and electric field between the semiconductor and electrolyte are important parameters affecting the surface properties in HER/OER. © 2022 Elsevier Ltd.

Research Area(s)

HER/OER, Surface admittance, Surface adsorption, Transition-metal-doped MoS2

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Citation Format(s)

[ RIS ] [ BibTeX ]

Surface conductance analysis of X-MoS₂ (X = Fe, Co, Ni) prepared on graphite felt as bifunctional catalysts for the hydrogen/oxidation evolution reactions. / Shi, Huiyun; Zhang, Youyuan; Pang, Ning et al.
In: Electrochimica Acta, Vol. 439, 141596, 20.01.2023.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Shi, H, Zhang, Y, Pang, N, Xu, S, Xiong, D, Wang, L, Yang, P & Chu, PK 2023, 'Surface conductance analysis of X-MoS₂ (X = Fe, Co, Ni) prepared on graphite felt as bifunctional catalysts for the hydrogen/oxidation evolution reactions', Electrochimica Acta, vol. 439, 141596. https://doi.org/10.1016/j.electacta.2022.141596

Shi, H., Zhang, Y., Pang, N., Xu, S., Xiong, D., Wang, L., Yang, P., & Chu, P. K. (2023). Surface conductance analysis of X-MoS₂ (X = Fe, Co, Ni) prepared on graphite felt as bifunctional catalysts for the hydrogen/oxidation evolution reactions. Electrochimica Acta, 439, Article 141596. https://doi.org/10.1016/j.electacta.2022.141596

Shi H, Zhang Y, Pang N, Xu S, Xiong D, Wang L et al. Surface conductance analysis of X-MoS₂ (X = Fe, Co, Ni) prepared on graphite felt as bifunctional catalysts for the hydrogen/oxidation evolution reactions. Electrochimica Acta. 2023 Jan 20;439:141596. Epub 2022 Nov 23. doi: 10.1016/j.electacta.2022.141596

Shi, Huiyun ; Zhang, Youyuan ; Pang, Ning et al. / Surface conductance analysis of X-MoS₂ (X = Fe, Co, Ni) prepared on graphite felt as bifunctional catalysts for the hydrogen/oxidation evolution reactions. In: Electrochimica Acta. 2023 ; Vol. 439.