Ethanol gas sensing with lower temperature and higher response based on three-dimensional multilevel materials composed of micron hollow carbon spheres@SnO2 nanoparticles

被引：6
作者：
Huang, Zehua [1 ]
Wang, Weizhe [1 ]
Xiao, Debiao [1 ]
Mo, Yuzhi [1 ]
Wang, Shuangbao [1 ]
Xu, Zhimou [1 ]
Peng, Jing [2 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
[2] Wuhan Univ Sci & Technol, Coll Sci, Wuhan 430081, Peoples R China
来源：
MATERIALS TODAY COMMUNICATIONS | 2022年 / 32卷
关键词：
Micro-nano composite pores; Ethanol gas sensor; SnO2; Gas enrichment; REDUCED GRAPHENE OXIDE; SNO2; NANOPARTICLES; SELECTIVE DETECTION; SENSOR; SENSITIVITY; NANOSTRUCTURE; NANOFIBERS; NANOWIRES; ROUTE; NO2;
D O I：
10.1016/j.mtcomm.2022.104105
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Metal oxide semiconductor gas sensors (MOS) based on tin oxide have excellent performance in ethanol gas detection and have been widely used in industrial production, environmental protection, and road safety detection. However, conventional tin oxide sensors can only show excellent detection performance for ethanol gas above 250 degrees C. In this work, nano-size tin oxide particles were grown on the micron hollow carbon spheres derived from the biomaterial chlorella by a gel method. This three-dimensional hierarchical porous structure can enrich ethanol gas at a certain temperature. Ethanol gas sensor fabricated with this material has better sensing performance at low temperature (168-200 degrees C).
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页数：10
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