石墨烯是一种新型的二维纳米碳材料。石墨烯具有独特的结构和优异的性能,其复合材料具有较大的应用潜力,尤其是石墨烯具有较高的电子迁移率和超大的比表面积,其复合材料作为气敏性材料具有广阔的应用前景。主要对近年来石墨烯基纳米复合材料在气敏性方面的研究现状进行了综述,并对石墨烯纳米复合材料在低浓度有害气体检测方面的应用前景进行了展望。 Graphene is a new type of two-dimensional nano-carbon material. Graphene has unique structure and excellent performance, and its composite material has great potential for application. In particular, graphene has a high electron mobility and a large specific surface area, and its composite material has broad application as a gas-sensing material prospect. In this paper, the research status of gas sensing properties of graphene based nanocomposites in recent years are reviewed. The prospect of graphene nanocomposites in the detection of low concentration of harmful gases is also forecasted.