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Two-step Preparation of Porous Nickel-sulfur Electrode for Hydrogen Evolution in Alkaline Water Electrolysis
Zhang, Kaiyue; Xiao, Wei; Li, Junyao; Liu, Jianguo; Yan, Chuanwei; Zhang, KY (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
2017-02-20
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume228Pages:422-427
AbstractThis work reports the preparation of 3D porous nickel-sulfur electrode for hydrogen evolution reaction (HER). The construction of the 3D porous structure is achieved by hydrogen bubbles dynamic templates, prepared from Cu electrodeposition at high current density. Subsequently, a nickel-sulfur film is electrodeposited on the 3D porous copper structure. The nickel-sulfur film with high crystal Ni3S2 content is achieved only through controlling deposition current. And the relationship between crystal structure and deposition current has been revealed. The porous crystal Ni3S2 electrode is significantly active for HER with a lower onset overpotential and an additional negative potential leading to a rapid increase in the cathodic current. And the developed electrode shows a lower charge transfer resistance for HER, which takes both advantages of high intrinsic activity and large real surface area. Besides, the electrode shows a higher electrochemical stability during the long-term electrolysis test. (C) 2017 Elsevier Ltd. All rights reserved.; This work reports the preparation of 3D porous nickel-sulfur electrode for hydrogen evolution reaction (HER). The construction of the 3D porous structure is achieved by hydrogen bubbles dynamic templates, prepared from Cu electrodeposition at high current density. Subsequently, a nickel-sulfur film is electrodeposited on the 3D porous copper structure. The nickel-sulfur film with high crystal Ni3S2 content is achieved only through controlling deposition current. And the relationship between crystal structure and deposition current has been revealed. The porous crystal Ni3S2 electrode is significantly active for HER with a lower onset overpotential and an additional negative potential leading to a rapid increase in the cathodic current. And the developed electrode shows a lower charge transfer resistance for HER, which takes both advantages of high intrinsic activity and large real surface area. Besides, the electrode shows a higher electrochemical stability during the long-term electrolysis test. (C) 2017 Elsevier Ltd. All rights reserved.
description.department[zhang, kaiyue ; xiao, wei ; liu, jianguo ; yan, chuanwei] chinese acad sci, inst met res, shenyang 110016, peoples r china ; [li, junyao] liaoning tobacco co, qual inspect stn, shenyang 110062, peoples r china
KeywordElectrodeposition Nickel-sulfur Porous Materials Hydrogen Evolution Reaction Electrocatalytic Activity
Subject AreaElectrochemistry
Funding OrganizationNational Natural Science Foundation of China [21676282, 21373009]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78286
Collection中国科学院金属研究所
Corresponding AuthorZhang, KY (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Zhang, Kaiyue,Xiao, Wei,Li, Junyao,et al. Two-step Preparation of Porous Nickel-sulfur Electrode for Hydrogen Evolution in Alkaline Water Electrolysis[J]. ELECTROCHIMICA ACTA,2017,228:422-427.
APA Zhang, Kaiyue,Xiao, Wei,Li, Junyao,Liu, Jianguo,Yan, Chuanwei,&Zhang, KY .(2017).Two-step Preparation of Porous Nickel-sulfur Electrode for Hydrogen Evolution in Alkaline Water Electrolysis.ELECTROCHIMICA ACTA,228,422-427.
MLA Zhang, Kaiyue,et al."Two-step Preparation of Porous Nickel-sulfur Electrode for Hydrogen Evolution in Alkaline Water Electrolysis".ELECTROCHIMICA ACTA 228(2017):422-427.
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