论文部分内容阅读
以三维石墨烯和噻吩为原料,利用化学氧化聚合法合成二元杂化材料三维石墨烯/聚噻吩(3D-rGO/PTh),噻吩单体在载体石墨烯片的表面发生聚合反应。杂化材料表征使用扫描电镜、红外光谱仪和比表面测试仪。结果表明,杂化材料有大量空隙,具有较大的比表面积。室温下,石墨烯质量含量7%时,复合物对NO_2具有较好的气敏性能,NO_2浓度10×10~(-6)时,灵敏度达到34.1。复合材料气敏性能提高的原因在于大比表面积和协同效应。
Three-dimensional graphene and thiophene as raw materials, the use of chemical oxidation polymerization synthesis of binary hybrid materials, three-dimensional graphene / polythiophene (3D-rGO / PTh), thiophene monomer in the carrier graphene surface polymerization. Characterization of hybrid materials using scanning electron microscopy, infrared spectroscopy and specific surface tester. The results show that the hybrid material has a large number of voids and has a large specific surface area. At room temperature, the graphene mass fraction of 7%, the composite has good gas sensing properties NO2, NO2 concentration of 10 × 10 -6, the sensitivity of 34.1. The reason for the increase of gas sensitivity of composite materials lies in its large specific surface area and synergistic effect.