摘要
以氧化石墨烯和氯化亚锡为原料,在简单的超声作用下,经过其自身间的氧化还原反应,使得纳米二氧化锡(SnO_2)颗粒均匀负载在还原氧化石墨烯(RGO)表面,从而获得了SnO_2/RGO纳米复合材料.气敏性能研究表明,在75℃的工作温度下,纳米SnO_2的复合极大改善了RGO对NO_2的气敏响应性能.此外,退火作用对SnO_2/RGO纳米复合材料的NO_2气敏性能有重要影响.
The SnO2/RGO nanocomposites were simply synthesized based on an oxidation-reduction reac- tion between GO and SnCl2 · 2H2O with the help of sonication. In this materials, SnO2 nanoparticles were uniformly distributed on the surfaces of RGO. The performance characterization demonstrated that the functionalization of SnO2 nanopartieles could dramatically improve the gas-sensing properties of RGO towards NO2 at the work temperature of 75 ℃. In addition, the thermal treatment of SnO2/RGO nano- composites had an important effect on the NO2 gas-sensing properties.
出处
《郑州大学学报（理学版）》
CAS
北大核心
2016年第2期79-83,共5页
Journal of Zhengzhou University:Natural Science Edition
基金
国家自然科学基金资助项目(11472252)
