用于甲苯传感的超薄氧化钨纳米线/还原氧化石墨烯复合材料
Ultrathin Tungsten Oxide Nanowires/Reduced Graphene Oxide Composites for Toluene Sensing.
作者信息
Hassan Muhammad, Wang Zhi-Hua, Huang Wei-Ran, Li Min-Qiang, Liu Jian-Wei, Chen Jia-Fu
机构信息
Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, 230026 Hefei, China.
Nanomaterials & Environment Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, 230031 Hefei, China.
出版信息
Sensors (Basel). 2017 Sep 29;17(10):2245. doi: 10.3390/s17102245.
Graphene-based composites have gained great attention in the field of gas sensor fabrication due to their higher surface area with additional functional groups. Decorating one-dimensional (1D) semiconductor nanomaterials on graphene also show potential benefits in gas sensing applications. Here we demonstrate the one-pot and low cost synthesis of WO NWs/rGO composites with different amount of reduced graphene oxide (rGO) which show excellent gas-sensing properties towards toluene and strong dependence on their chemical composition. As compared to pure WO NWs, an improved gas sensing response (2.8 times higher) was achieved in case of WO NWs composite with 0.5 wt. % rGO. Promisingly, this strategy can be extended to prepare other nanowire based composites with excellent gas-sensing performance.
基于石墨烯的复合材料因其具有更高的表面积和额外的官能团，在气体传感器制造领域受到了广泛关注。在石墨烯上修饰一维（1D）半导体纳米材料在气体传感应用中也显示出潜在的优势。在此，我们展示了一种一锅法低成本合成具有不同还原氧化石墨烯（rGO）含量的WO纳米线/rGO复合材料的方法，该复合材料对甲苯表现出优异的气敏性能，且对其化学成分有很强的依赖性。与纯WO纳米线相比，含0.5 wt.% rGO的WO纳米线复合材料的气敏响应提高了（高出2.8倍）。有望的是，这种策略可以扩展到制备其他具有优异气敏性能的基于纳米线的复合材料。
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