中文摘要：

综述了石墨烯复合物的种类、性能与制备方法，以及在痕量气体分子检测中的应用。石墨烯具有大的比表面积和独特的电学性质，对一些气体分子有很强的吸附能力，制作的传感器用于气体分子检测时灵敏度较高，但选择性较差。氧化石墨烯巨大的比表面积和表面丰富的官能团赋予的优异的复合性能，可提高传感器的检测灵敏度和选择性。

英文摘要：

It was reviewed about types, properties and preparation methods of graphene composites and its application in detection of trace gas molecular. Graphene had large specific surface area and unique electrical properties to make high sensitive sensor for gas molecular detection because it had strong capacity of absorption. The weak point of the material was poor selectivity. Graphene sensors of detection sensitivity and selectivity could be improved by composite performance of huge specific surface and abundant surface functional groups.