IMR OpenIR
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
2020-11-01
Source PublicationADVANCED FUNCTIONAL MATERIALS
Volume30Issue:47
AbstractDeveloping 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.
DOI10.1002/adfm.202000693
WOS IDWOS:000530862700001
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82869
Collection中国科学院金属研究所
Recommended Citation
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).
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