Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 391, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2020.122226
Keywords
Hollow cubic; ZnSnO3; Oxygen vacancies; Gas sensor; H2S
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Funding
- National Natural Science Foundation of China [,61603086]
- Heilongjiang Province Science Foundation [YQ2019F013]
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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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