MoS2 nanotubes loaded with TiO2 nanoparticles for enhanced electrocatalytic hydrogen evolution

Bo Feng; Chuntao Liu; Weiyi Yan; Jianxin Geng; Guimin Wang

doi:10.1039/c9ra05041h

MoS₂ nanotubes loaded with TiO₂ nanoparticles for enhanced electrocatalytic hydrogen evolution

RSC Adv. 2019 Aug 23;9(45):26487-26494. doi: 10.1039/c9ra05041h. eCollection 2019 Aug 19.

Authors

Bo Feng¹, Chuntao Liu^{1

2}, Weiyi Yan¹, Jianxin Geng¹, Guimin Wang¹

Affiliations

¹ School of Chemistry and Materials Science, Heilongjiang University Harbin 150080 PR China liuct@hlju.edu.cn liu_chuntao@163.com.
² Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, School of Chemistry and Materials Science, Heilongjiang University Harbin 150080 PR China.

Abstract

Efficient and stable non-precious metal catalysts composed of earth-abundant elements are crucial to the hydrogen evolution reaction (HER) in high-energy conversion efficiency. Herein, TiO₂/MoS₂-NTs catalyst, in which the MoS₂ nanotubes were loaded with TiO₂ nanoparticles, have been synthesized via a facile solvothermal and hydrothermal method. The as-prepared TiO₂/MoS₂-NTs electrocatalyst demonstrated enhanced electrocatalytic hydrogen evolution performance compared with MoS₂-NTs. Electrochemical measurements reveal the overpotential and Tafel slope of as-prepared TiO₂/MoS₂-NTs are -0.21 V and 42 mV dec^-1. The HER improvement is proposed to be attributed to the increased edge sites results from the interfaces and synergic effect between TiO₂ nanoparticles and MoS₂ nanotubes.