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Iron-doped NiS2 microcrystals with exposed {001} facets for electrocatalytic water oxidation
Zhang, Lulu1,2; Yang, Yongqiang1; Zhu, Huaze1,2; Cheng, Hui-Ming2,3; Liu, Gang1,2
Corresponding AuthorYang, Yongqiang(yqyang@imr.ac.cn) ; Liu, Gang(gangliu@imr.ac.cn)
2022-02-15
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
Volume608Pages:599-604
AbstractDeveloping high-performance electrocatalysts with favorable phase, surface structure and electronic structure for oxygen evolution reaction (OER) is crucial for efficient electrocatalytic water splitting. With Fe3+ ions as both dopant and morphology-controlling agent, Fe-doped NiS2 microcrystals with the exposed chemically stable {001} facets were synthesized hydrothermally for electrocatalytic OER. The initial electrocatalytic OER activation processes led to the conversion of iron-rich surface layers of the NiS2 microcrystals into Fe-doped Ni (oxy)hydroxide as the shell and the residual inner of the NiS2 microcrystals as the core. Such Fe-doped NiS2 microcrystals with the derived core/shell structure only required a small OER overpotential of 277 mV to reach an electrochemical current density of 10 mA/cm(2) , and showed a good stability in a more than 20 h duration test almost without overpotential increase. (C) 2021 Elsevier Inc. All rights reserved.
KeywordDoping Facet NiS2 Oxygen evolution reaction (OER) Electrocatalyst
DOI10.1016/j.jcis.2021.09.096
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000711686400009
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167135
Collection中国科学院金属研究所
Corresponding AuthorYang, Yongqiang; Liu, Gang
Affiliation1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Shenzhen Inst Adv Technol, Inst Technol Carbon Neutral, 1068 Xueyuan Blvd, Shenzhen 518055, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Lulu,Yang, Yongqiang,Zhu, Huaze,et al. Iron-doped NiS2 microcrystals with exposed {001} facets for electrocatalytic water oxidation[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2022,608:599-604.
APA Zhang, Lulu,Yang, Yongqiang,Zhu, Huaze,Cheng, Hui-Ming,&Liu, Gang.(2022).Iron-doped NiS2 microcrystals with exposed {001} facets for electrocatalytic water oxidation.JOURNAL OF COLLOID AND INTERFACE SCIENCE,608,599-604.
MLA Zhang, Lulu,et al."Iron-doped NiS2 microcrystals with exposed {001} facets for electrocatalytic water oxidation".JOURNAL OF COLLOID AND INTERFACE SCIENCE 608(2022):599-604.
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