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题名: Fe(III) doped NiS2 nanosheet: a highly efficient and low-cost hydrogen evolution catalyst
作者: Yan, Junqing1;  Wu, Huan1;  Li, Ping1;  Chen, Hong1;  Jiang, Ruibin1;  Liu, Shengzhong (Frank)1, 2
刊名: JOURNAL OF MATERIALS CHEMISTRY A
发表日期: 2017-06-07
DOI: 10.1039/c6ta11041j
卷: 5, 页:10173-10181
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Energy & Fuels ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Materials Science
英文摘要: Sustainable hydrogen generation via electrocatalytic/photocatalytic water splitting has been widely regarded as the most promising energy carrier and has attracted extensive attention. However, a considerable hydrogen evolution reaction (HER) always involves the rare noble metals. Herein, we report a new HER candidate, an Fe-doped NiS2 (Fe-NiS2) nanosheet, with the performance of high activity and electrochemical stability. We chose the sulfidation of Ni(OH)(2) under mild calcinated temperature for Fe-NiS2 formation. The theoretical and experimental results suggest that the Fe3+ doping into the surface lattice of the NiS2 (002) facet lowers the activation energy of H-2 generation. The synthesized Fe-NiS2 sample shows good electrocatalytic HER performance with a low Tafel slope of 37 mV dec(-1) and a small overpotential of 121 mV at 10 mA cm(-2). Moreover, Fe-NiS2 gives considerable stability with a negligible loss of HER value l after a reaction of 1100 min. The Fe-NiS2 sample is also in situ loaded onto the surface of CdS nanorods to act as a co-catalyst for photocatalytic H-2 generation with the result of 3.2 mmol h(-1) g(-1) hydrogen evolution under visible light, 46 times higher than with bare CdS. This work can help us to design new electrocatalysts for water splitting; it also provides a good understanding of the hydrogen evolution pathway.
关键词[WOS]: MOS2 NANOPARTICLES ;  BASIC SOLUTIONS ;  WATER ;  ELECTROCATALYST ;  PHOTOCATALYST ;  GENERATION ;  NANOWIRE ;  CDS ;  CATHODE ;  FOAM
语种: 英语
WOS记录号: WOS:000402387900009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152228
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Shaanxi Normal Univ, Sch Mat Sci & Engn, Shaanxi Engn Lab Adv Energy Technol, Key Lab Appl Surface & Colloid Chem,Natl Minist E, Xian 710119, Peoples R China
2.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, iChEM, Dalian 116023, Peoples R China

Recommended Citation:
Yan, Junqing,Wu, Huan,Li, Ping,et al. Fe(III) doped NiS2 nanosheet: a highly efficient and low-cost hydrogen evolution catalyst[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5:10173-10181.
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