三维石墨烯/聚苯胺纳米线复合材料合成及室温气敏性能  

Preparation of 3D-rGO/PANI nanofiber and its H_2 sensitivity at room temperature

作　　者：田俊峰[1] 陈哲 韩光鲁 尹志刚[1] Tian Junfeng;Chen Zhe;Han Guanglu;Yin Zhigang(Henan Provincial Key Laboratory of Surface & Interface Science,Zhengzhou University of Light Industry,Zhengzhou 450001)

机构地区：[1]郑州轻工业学院河南省表界面科学重点实验室,郑州450001

出　　处：《化工新型材料》2019年第3期51-54,共4页New Chemical Materials

基　　金：国家自然科学基金(21606211);河南省科技计划基础与前沿技术研究计划(152300410127);河南省高等学校重点科研项目(18B430017);郑州轻工业学院2017年博士科研基金(2017BSJJ056)

摘　　要：以三维石墨烯和苯胺为原料,使用化学氧化聚合法制备二元复合材料三维石墨烯/聚苯胺纳米线(3D-rGO/PANI),石墨烯既是气敏材料的组成部分,又是聚苯胺的生长模板。复合材料的结构表征使用扫描电镜、红外光谱仪和比表面测试仪。结果表明:PANI是线状结构,复合材料有大量空隙,比表面积大。室温下,和纯PANI相比,3D-rGO/PANI对H2表现出较好的气敏性能,H2浓度为500×10-6时,灵敏度达到10.6。复合材料的大比表面积和协同效应有助于气敏性能提高。A hydrogen gas sensor based on three dimensional graphene/polyaniline(3 D-rGO/PANI)hybrid were presented.PANI nanofibers were anchored on the surface of 3 D-rGO sheets by using 3 D-rGO as templates.The developed hybrid was characterized by SEM,FT-IR and BET analysis.H2 gas sensing performance of hybrid was studied and compared with that of sensor based on bare PANI nanofibers.It shown that the synergetic behavior and large surface area of hybrid allowed excellent sensitivity.3 D-rGO/PANI sensor showed better response to H2 gas than that of bare PANI nanofiber.The sensitivity could reach 10.6 for H2 of 500×10^-6.

关 键 词：三维石墨烯 聚苯胺纳米线 气敏性能 室温 

分 类 号：TB332[一般工业技术—材料科学与工程]