Low-temperature H2S gas sensor based on spherical Ag3PO4-doped SnO2

被引：8

作者：

Sun, Mojie ^{[1
]}

Zhang, Zhenye ^{[1
]}

Wang, Shijie ^{[1
]}

Zhang, Shiyuan ^{[1
]}

Wang, Ruiting ^{[1
]}

Song, Xiaochen ^{[2
]}

机构：

[1] Northeast Elect Power Univ, Sch Chem Engn, Jilin 132012, Jilin, Peoples R China

[2] Northeast Elect Power Univ, Sch Mech Engn, Jilin 132012, Jilin, Peoples R China

来源：

NEW JOURNAL OF CHEMISTRY | 2020年 / 44卷 / 37期

关键词：

ETHANOL-SENSING PROPERTIES; FACILE CONTROL; CO; PERFORMANCE; FTIR; H-2; NANOCOMPOSITES; SELECTIVITY; FABRICATION; ADSORPTION;

D O I：

10.1039/d0nj03189e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An efficient method for detecting H2S gas at low temperatures using micrometer-sized spherical Ag3PO4-doped SnO(2)materials synthesized by hydrothermal and chemical precipitation methods is reported. The crystalline phase, defects, elemental composition, and morphology of the samples were characterized in detail using scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. The characterization results verified the spherical structures of Ag3PO4-doped SnO(2)materials. The performance analysis revealed that the proposed gas sensor has the advantages of low operating temperature (100 degrees C), high response value (118), and good selectivity. The excellent H2S gas sensing performance is attributed to the increased oxygen vacancy defects and facile electron transfer process in the conduction band. Overall, this study validates the potential of gas-sensitive sensors based on Ag3PO4-doped SnO(2)materials for practical applications.

引用

页码：15966 / 15974

页数：9

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