Ultrastable MXene@Pt/SWCNTs' Nanocatalysts for Hydrogen Evolution Reaction

doi:10.1002/adfm.202000693

CORC > 金属研究所 > 中国科学院金属研究所

	Ultrastable MXene@Pt/SWCNTs' Nanocatalysts for Hydrogen Evolution Reaction
	Cui, Cong; Cheng, Renfei; Zhang, Hui; Zhang, Chao; Ma, Yonghui; Shi, Chao; Fan, Bingbing; Wang, Hailong; Wang, Xiaohui
刊名	ADVANCED FUNCTIONAL MATERIALS
	2020-11-01
卷号	30 期号:47
DOI	10.1002/adfm.202000693
英文摘要	Developing nano- or atom-scale Pt-based electrocatalysts for hydrogen evolution reaction (HER) is of considerable importance to mitigate the issues associated with low abundance of Pt. Here, a protocol for constructing a hierarchical Pt--MXene-single-walled carbon nanotubes' (SWCNTs) heterostructure for HER catalysts is presented. In the heterostructure, highly active nano/atom-scale metallic Pt is immobilized on Ti3C2Tx MXene flakes (MXene@Pt) that are connected with conductive SWCNTs' network. The hierarchical heterostructure is constructed by filtrating a mixed colloidal suspension containing MXene@Pt and SWCNTs. Taking the advantages of the hydrophilicity and reducibility of MXene, the MXene@Pt colloidal suspension is prepared by spontaneously reducing Pt cations into metallic Pt without additional reductants or post-treatments. The so-fabricated hierarchical HER catalysts, in the form of membrane, show high stability during 800 h operation, a high volume current density of up to 230 mA cm(-3) at -50 mV versus reversible hydrogen electrode (RHE) and a low overpotential of -62 mV versus RHE at the current density of -10 mA cm(-2). This solution-processed strategy offers a simple, efficient, yet scalable approach to construct stable and efficient HER catalysts. Given the properties and the structure-activity relationships of the hierarchical Pt-MXene-SWCNTs' heterostructure, other MXenes probably show greater promise in HER electrocatalysis.
WOS记录号	WOS:000530862700001
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/155701]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Cui, Cong,Cheng, Renfei,Zhang, Hui,et al. Ultrastable MXene@Pt/SWCNTs' Nanocatalysts for Hydrogen Evolution Reaction[J]. ADVANCED FUNCTIONAL MATERIALS,2020,30(47).
APA	Cui, Cong.,Cheng, Renfei.,Zhang, Hui.,Zhang, Chao.,Ma, Yonghui.,...&Wang, Xiaohui.(2020).Ultrastable MXene@Pt/SWCNTs' Nanocatalysts for Hydrogen Evolution Reaction.ADVANCED FUNCTIONAL MATERIALS,30(47).
MLA	Cui, Cong,et al."Ultrastable MXene@Pt/SWCNTs' Nanocatalysts for Hydrogen Evolution Reaction".ADVANCED FUNCTIONAL MATERIALS 30.47(2020).