Highly dispersed few-layer MoS2 nanosheets on S, N co-doped carbon for electrocatalytic H-2 production

	Highly dispersed few-layer MoS2 nanosheets on S, N co-doped carbon for electrocatalytic H-2 production
	Hua, S. X.; D. Qu; L. An; G. C. Xi; G. Chen; F. Li; Z. J. Zhou and Z. C. Sun
	2017
发表期刊	Chinese Journal of Catalysis
卷号	38 期号:6
摘要	Ultrathin small MoS2 nanosheets exhibit a higher electrocatalytic activity for the hydrogen evolution reaction. However, strong interactions between MoS2 layers may result in aggregation; together with the low conductivity of MoS2, this may lower its electrocatalytic activity. In this paper we present a method that we developed to directly produce solid S, N co-doped carbon (SNC) with a graphite structure and multiple surface groups through a hydrothermal route. When Na2MoO4 was added to the reaction, polymolybdate could be anchored into the carbon materials via a chemical interaction that helps polymolybdate disperse uniformly into the SNC. After a high temperature treatment, polymolybdate transformed into MoS2 at 800 degrees C for 6 h in a N-2 atmosphere at a heating rate of 5 degrees C/min, owing to S2- being released from the SNC during the treatment (denoted as MoS2/SNC-800-6h). The SNC effectively prevents MoS2 from aggregating into large particles, and we successfully prepared highly dispersed MoS2 in the SNC matrix. Electrochemical characterizations indicate that MoS2/SNC-900-12h exhibits a low onset potential of 115 mV and a low overpotential of 237 mV at a current density of 10 mA/cm(2). Furthermore, MoS2/SNC-900-12h also had an excellent stability with only similar to 2.6% decay at a current density of 10 mA/cm(2) after 5000 test cycles. (C) 2017, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
收录类别	sci ; ei
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/58948
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Hua, S. X.,D. Qu,L. An,et al. Highly dispersed few-layer MoS2 nanosheets on S, N co-doped carbon for electrocatalytic H-2 production[J]. Chinese Journal of Catalysis,2017,38(6).
APA	Hua, S. X..,D. Qu.,L. An.,G. C. Xi.,G. Chen.,...&Z. J. Zhou and Z. C. Sun.(2017).Highly dispersed few-layer MoS2 nanosheets on S, N co-doped carbon for electrocatalytic H-2 production.Chinese Journal of Catalysis,38(6).
MLA	Hua, S. X.,et al."Highly dispersed few-layer MoS2 nanosheets on S, N co-doped carbon for electrocatalytic H-2 production".Chinese Journal of Catalysis 38.6(2017).

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