Ni-Assisted Low Temperature Synthesis of MoCxwith Enhanced HER Activity

doi:10.1002/chem.201703040

	Ni-Assisted Low Temperature Synthesis of MoCxwith Enhanced HER Activity
	Zhou, Yajun 1,2; Huang, Weimin 1; Zhang, Xiaohua 1,2; Wang, Min 1,2; Zhang, Lingxia 1; Shi, Jianlin 1
刊名	Chemistry - A European Journal
	2017
卷号	23 期号:67 页码:17029-17036
ISSN号	09476539
DOI	10.1002/chem.201703040
英文摘要	Here we report a novel one-pot approach to synthesize MoCxcatalysts at much lowered temperature for hydrogen evolution reaction (HER) in acidic solution. A room-temperature co-precipitation reaction among Ni2+, MoO42−and 2-methylimidazole in an aqueous solution produced a Mo−Ni−imidazole complex, which was used as the precursor to fabricate MoCx. The morphological and chemical properties of the obtained MoCxaffected by calcination and other additive metal sources (like Fe, Co, Cu) were investigated in detail. We demonstrated that Ni−Mo alloying took place prior to MoCxformation during heating, which catalyzed the crystallization of MoCxat relatively low temperature. The MoCx/Ni-650 catalyst exhibited a quite low overpotential of 172 mV at 20 mA cm−2. The high performance originates from the synergistic effect between MoCxand Ni−Mo alloy, high ratio of Mo3+/Mo2+, as well as high electrochemically active surface area and low charge-transfer resistance. This work would open a new way to the design and fabrication of other transition-metal carbide catalysts. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25431]
专题	中国科学院上海硅酸盐研究所
作者单位	1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai; 200050, China; 2.University of Chinese Academy of Sciences, Beijing; 100049, China
推荐引用方式 GB/T 7714	Zhou, Yajun,Huang, Weimin,Zhang, Xiaohua,et al. Ni-Assisted Low Temperature Synthesis of MoCxwith Enhanced HER Activity[J]. Chemistry - A European Journal,2017,23(67):17029-17036.
APA	Zhou, Yajun,Huang, Weimin,Zhang, Xiaohua,Wang, Min,Zhang, Lingxia,&Shi, Jianlin.(2017).Ni-Assisted Low Temperature Synthesis of MoCxwith Enhanced HER Activity.Chemistry - A European Journal,23(67),17029-17036.
MLA	Zhou, Yajun,et al."Ni-Assisted Low Temperature Synthesis of MoCxwith Enhanced HER Activity".Chemistry - A European Journal 23.67(2017):17029-17036.