Growth Control of MoS2 Nanosheets on Carbon Cloth for Maximum Active Edges Exposed: An Excellent Hydrogen Evolution 3D Cathode

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• 作者：Nan Zhang ; Shiyu Gan ; Tongshun Wu ; Weiguang Ma ; Dongxue Han ; Li Niu
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2015
• 出版时间：June 10, 2015
• 年：2015
• 卷：7
• 期：22
• 页码：12193-12202
• 全文大小：733K
• ISSN：1944-8252

文摘

To greatly improve the hydrogen evolution reaction (HER) performance, it is the key approach to expose as many active edges of MoS₂ as possible. This target is the research hotspot and difficulty of MoS₂ which is a promising HER catalyst. In this work, we realized the active-edges control of MoS₂ nanosheets on carbon cloth (CC) by growth control during the synthesis procedure. Moreover, MoS₂ nanosheets vertically grown on carbon cloth (MoS₂鈯C) was confirmed to be the best morphology with maximum active edges exposed. Multifactors structure control resulted in abundant active-edges exposure and effective electron delivery, thus excellent HER activity. This three-dimensional cathode, MoS₂鈯C, can reach a great current density of 200 mA/cm² at a small overpotential of 205 mV. The preeminent HER performance can rival the best MoS₂-based catalyst ever reported.