Phase-selective synthesis of self-supported RuP films for efficient hydrogen evolution electrocatalysis in alkaline media

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2018专题

	Phase-selective synthesis of self-supported RuP films for efficient hydrogen evolution electrocatalysis in alkaline media
	Zhang, Qiuju; Ge, Ruixiang; Wang, Shuo; Su, Jianwei; Dong, Yan; Lin, Yichao; Chen, Liang
刊名	NANOSCALE
	2018
卷号	10 期号:29 页码:13930-13935
关键词	Durable Electrocatalyst Pt-6 Cluster Water Cathode Arrays Nanostructures Nanoparticles Chemisorption Oxidation Catalyst
英文摘要	Large-scale hydrogen production through alkaline water electrolysis requires highly active and less expensive materials to replace platinum as a catalyst for the hydrogen evolution reaction (HER). Ruthenium, as the cheapest platinum-group element, has recently been demonstrated to exhibit excellent activity toward the HER. However, achieving better HER activity of ruthenium-based materials by selecting a more active phase is still unexplored. Herein, we report the fabrication of self-supported RuP and RuP2 catalyst films on carbon cloth (RuP/CC and RuP2/CC) via a facile, potentially scalable, and phase-controllable synthetic method. RuP/CC displays superior catalytic activity with a low overpotential of 13 mV at 10 mA cm(-1), outperforming RuP2/CC (33 mV at 10 mA cm(-1)) and most non-Pt HER catalysts. Moreover, good electrochemical stability and faradaic efficiency of nearly 100% are also demonstrated for RuP/CC. Density functional theory calculations reveal that RuP with a higher charge density at the Ru site is more favorable for the chemisorption of hydrogen, thereby exhibiting better HER activity than RuP2.
学科主题	Materials Science ; Physics
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17265]
专题	2018专题
推荐引用方式 GB/T 7714	Zhang, Qiuju,Ge, Ruixiang,Wang, Shuo,et al. Phase-selective synthesis of self-supported RuP films for efficient hydrogen evolution electrocatalysis in alkaline media[J]. NANOSCALE,2018,10(29):13930-13935.
APA	Zhang, Qiuju.,Ge, Ruixiang.,Wang, Shuo.,Su, Jianwei.,Dong, Yan.,...&Chen, Liang.(2018).Phase-selective synthesis of self-supported RuP films for efficient hydrogen evolution electrocatalysis in alkaline media.NANOSCALE,10(29),13930-13935.
MLA	Zhang, Qiuju,et al."Phase-selective synthesis of self-supported RuP films for efficient hydrogen evolution electrocatalysis in alkaline media".NANOSCALE 10.29(2018):13930-13935.