Hollow cubic ZnSnO3 with abundant oxygen vacancies for H2S gas sensing

被引：58
作者：
Wang, Zheying [1 ]
Miao, Jiayu [1 ]
Zhang, Haixue [1 ]
Wang, Dong [2 ]
Sun, Jianbo [1 ]
机构：
[1] Harbin Normal Univ, Sch Phys & Elect Engn, Key Lab Photon & Elect Bandgap Mat, Minist Educ, Harbin 10025, Peoples R China
[2] Northeast Elect Power Univ, 169 Changchun Rd, Jilin 132012, Jilin, Peoples R China
来源：
JOURNAL OF HAZARDOUS MATERIALS | 2020年 / 391卷
基金：
中国国家自然科学基金;
关键词：
Hollow cubic; ZnSnO3; Oxygen vacancies; Gas sensor; H2S; OXIDE; NANOCOMPOSITE; MICROSPHERES; FABRICATION;
D O I：
10.1016/j.jhazmat.2020.122226
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The hollow cubic structure ZnSnO3 with controllable concentration of oxygen vacancies were prepared by the hydrothermal combined with alkali etching method. The morphology and structure of the materials were analyzed by X-ray diffraction (XRD), electron scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). The resistance-type sensor with the hollow cubic ZnSnO3 as sensing material was fabricated. The sensor exhibited high sensing performance for H2S. The oxygen vacancy was studied by X-ray photoelectron spectroscopy (XPS) and photoluminescence (PL) spectrum. Besides, the possible gas-sensitive mechanism was discussed.
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页数：9
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