A facile method to produce MoSe2/MXene hybrid nanoflowers with enhanced electrocatalytic activity for hydrogen evolution

被引：50

作者：

Huang, Jia-Jun ^{[1
]}

Liu, Xiao-Qing ^{[1
]}

Meng, Fei-Fei ^{[1
]}

He, Lan-Qi ^{[1
]}

Wang, Jun-Xi ^{[1
]}

Wu, Jia-Cheng ^{[1
]}

Lu, Xi-Hong ^{[1
]}

Tong, Ye-Xiang ^{[1
]}

Fang, Ping-Ping ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem, MOE Key Lab Bioinorgan & Synthet Chem, Key Lab Low Carbon Chem & Energy Conservat Guangd, Guangzhou 510275, Peoples R China

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2020年 / 856卷

基金：

中国国家自然科学基金;

关键词：

MXene; MoSe2; Nanoflowers; HER; Electrocatalysis; MOSE2; NANOSHEETS; EFFICIENT; GRAPHENE; NANOCRYSTALS; CATALYST; GROWTH; MXENE; FILMS;

D O I：

10.1016/j.jelechem.2019.113727

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Transition metal dichalcogenides are considered as one of the most attractive candidates for hydrogen evolution reactions but their inferior conductivity is utterly disappointing. Herein, by virtue of a facile, scalable hydrothermal method, MoSe2 is in-situ grown on the ultrathin titanium carbide substrate (MXene), generating a novel three-dimensional nanoflower with freestanding petals for electrocatalytic hydrogen evolution reaction. The ingenious introduction of the highly-conductive MXene as the skeleton for the MoSe2 growth significantly facilitates the charge/ion transport and a mountain of electrochemical active sites are exposed thanks to its unique three-dimensional architecture. Benefiting from these advantageous properties, the MoSe2/MXene hybrid nanoflowers exhibit a low onset potential of 61 mV vs. RHE for HER at acidic environment and around 6-fold current density increase is observed at -300 mV compared with MoSe2. Notably, they display long-term cycling viability, experiencing negligible decay after 2000 cycles. This work paves the way for future applications of MXene-based nanomaterials in other clean-energy-conversion reactions. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：7

共 45 条

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