MoS₂ graphene fiber based gas sensing devices

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• 作者：Yue Niu ; Rongguo Wang ; Weicheng Jiao ; ^{xiaojiao458@163.com" class="auth_mail" title="E-mail the corresponding author} ; Guomin Ding ; Lifeng Hao ; Fan Yang ; Xiaodong He
• 刊名：Carbon
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：95
• 期：Complete
• 页码：34-41
• 全文大小：2088 K

文摘

A facile method is developed to synthesize a fiber-like reduced graphene oxided (rGO)/molybdenum disulfide (MoS₂) composites through a wet-spinning and a hydrothermal method. In the presence of Dodecyl dimethyl benzyl ammonium chloride, graphene provides a substrate for nucleation of MoS₂. In this composite, MoS₂ nanosheets can be anchored onto the surface of graphene through both physical adsorption and electron transfer by hydrothermal method. This process inhibits both graphene and MoS₂ layers from stacking together. The gas sensing properties are evaluated in an intelligent gas sensing analysis system. It is demonstrated that the obtained composite fiber devices show an excellent sensitivity and selectivity to NO₂ and NH₃ than the individual components in different light illumination conditions and the proper proportion of components was detected.