In situ decoration of Zn2SnO4 nanoparticles on reduced graphene oxide for high performance ethanol sensor

被引：43

作者：

Li, Yanwei ^{[1
]}

Luo, Na ^{[1
]}

Sun, Guang ^{[1
]}

Zhang, Bo ^{[1
]}

Lin, Long ^{[1
]}

Jin, Honghong ^{[1
]}

Wang, Yan ^{[1
]}

Bala, Hari ^{[1
]}

Cao, Jianliang ^{[1
]}

Zhang, Zhanying ^{[1
]}

机构：

[1] Henan Polytech Univ, Sch Mat Sci & Engn, Cultivating Base Key Lab Environm Friendly Inorga, Jiaozuo 454000, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2018年 / 44卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Zn2SnO4; Reduced graphene oxide; Nanocomposite; Gas-sensing performance; Ethanol sensor; GAS-SENSING PROPERTIES; SNO2; TEMPERATURE; HETEROSTRUCTURE; NANOSTRUCTURES; NANOSPHERES; FABRICATION; NANOWIRES; NANORODS; HYBRID;

D O I：

10.1016/j.ceramint.2018.01.107

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Developing novel metal oxide semiconductor (MOS) gas-sensing materials with high performance has attracted much attention in the field of gas sensor. In this work, Zn2SnO4 nanoparticles/reduced graphene oxide (ZTO/RGO) nanocomposites with various contents of RGO were successfully synthesized via a solvothermal method combined with subsequent annealing process. Through the present method, ZTO nanoparticles with the size about 20 nm were in situ decorated on the surface of RGO nanosheets. The results of gas-sensing tests indicated that the as-prepared ZTO/RGO showed an enhanced sensing performance to ethanol in comparison with pure ZTO. The response of the sensor fabricated with 8ZTO/RGO (with the optimal mass ratio of ZTO:RGO = 8:1) to 100 ppm ethanol at the optimal operating temperature of 275 degrees C is as high as 38, which is about 6 times higher than that of the bare ZTO sensor. Besides of high sensitivity, the 8ZTO/RGO sensor also showed impressive selectivity and fast response/recover behavior, as well as good linearity in a relatively wide range of ethanol concentration (5-1200 ppm). These good sensing characteristics make 8ZTO/RGO a promising candidate for practically detecting ethanol. The gas-sensing mechanism of the composite to ethanol was also discussed in detail.

引用

页码：6836 / 6842

页数：7

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