Controllable Synthesis of Caterpilliar-like Molybdenum Sulfide @carbon Nanotube Hybrids with Core Shell Structure for Hydrogen Evolution. (1st May 2017)

• Record Type: Journal Article
• Authors: Wang, Xudan; Zheng, Yuanyuan; Yuan, Junhua; Shen, Jianfeng; Niu, Li; Wang, Ai-jun
• Is Part Of: Electrochimica acta. Volume 235(2017)
• Page Start: 422
• Page End: 428
• Publication Date: 2017-05-01
• Subjects: core shell -- hydrogen evolution reaction -- two-dimensional materials -- Nanosheets -- electrochemical water electrolysis; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2017.02.093
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: Ultrathin molybdenum sulfide (MoSx ) nanosheets were uniformly grown on multiwalled carbon nanotubes (MWCNTs) via a solvothermal process. These MoSx nanosheets possess high density of active sites, full of the basal MoSx edges and unsaturated S atoms, and their one-dimensional (1D) core-shell architecture facilitates electron transfer and charge transport, leading to a superior performance in H2 evolution reaction (HER). These caterpillar-like MoSx @MWCNT hybrids show a high HER capability in 0.5 M H2 SO4 solution with a low overpotential of 102 mV vs standard hydrogen electrode (SHE) and a small Tafel slope of 35 mV dec −1 at 10 mA cm −2 . Their HER activity presents no significant decay during potential polarization at 150 mV vs SHE for over 5 h.