Highly conductive carbon black supported amorphous molybdenum disulfide   for efficient hydrogen evolution reaction

doi:10.1016/j.jpowsour.2017.02.056

CORC > 北京大学 > 化学与分子工程学院

	Highly conductive carbon black supported amorphous molybdenum disulfide for efficient hydrogen evolution reaction
	Cao, Pengfei ; Peng, Jing ; Li, Jiuqiang ; Zhai, Maolin
刊名	JOURNAL OF POWER SOURCES
	2017
关键词	Hydrothermal Amorphous molybdenum disulfide Carbon black Hydrogen evolution reaction TRANSITION-METAL DICHALCOGENIDES MOS2 ULTRATHIN NANOSHEETS ACTIVE CATALYST LARGE-AREA GRAPHENE LAYER GROWTH ELECTROCATALYSTS NANOSTRUCTURES NANOPARTICLES
DOI	10.1016/j.jpowsour.2017.02.056
英文摘要	Molybdenum disulfide (MoS2) is a promising electrocatalyst for hydrogen evolution reaction (HER), however, the catalytic activity of reported MoS2-based materials towards HER still can't satisfy the requirement of practical application. Herein, highly conductive carbon black (CB) supported amorphous MoS2 nanocomposite is synthesized by a facile one-pot hydrothermal process. XRD and TEM analysis proves the amorphous morphology of MoS2. XPS further confirms both hexagonal and orthorhombic S ligands exist in the amorphous MoS2. Compared with crystalline MoS2, amorphous MoS2/CB shows an onset overpotential of 78 mV and current density of 470 mA cm(-2) at the overpotential of 200 mV, which is even 50% higher than that of the commercial 20% Pt/C catalyst. Furthermore, a fairly stable performance can be achieved even after 5000 CV cycles. The outstanding HER activity and stability of the amorphous MoS2/CB nanocomposite can be attributed to these advantages: (1) amorphous structure offers more active sites in MoS2; (2) highly conductive CB reduces the charge transfer resistance (R-CT); (3) relative hydrophilic CB can largely reduce the resistance between catalyst/electrolyte interface and allows rapid mass transport; (4) electron penetration effect between amorphous MoS2 and CB increases the intrinsic activity of amorphous MoS2 by two orders of magnitude. (C) 2017 Elsevier B.V. All rights reserved.; National Natural Science Foundation of China (NNSFC) [11375019]; SCI(E); ARTICLE; 210-219; 347
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/473989]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Cao, Pengfei,Peng, Jing,Li, Jiuqiang,et al. Highly conductive carbon black supported amorphous molybdenum disulfide for efficient hydrogen evolution reaction[J]. JOURNAL OF POWER SOURCES,2017.
APA	Cao, Pengfei,Peng, Jing,Li, Jiuqiang,&Zhai, Maolin.(2017).Highly conductive carbon black supported amorphous molybdenum disulfide for efficient hydrogen evolution reaction.JOURNAL OF POWER SOURCES.
MLA	Cao, Pengfei,et al."Highly conductive carbon black supported amorphous molybdenum disulfide for efficient hydrogen evolution reaction".JOURNAL OF POWER SOURCES (2017).