Construction of SnS2/ZIF-8 derived flower-like porous SnO2/ZnO heterostructures with enhanced triethylamine gas sensing performance

被引：36

作者：

Ma, Qian ^{[1
]}

Chu, Shushu ^{[1
]}

Liu, Yu ^{[2
]}

Chen, Ying ^{[1
]}

Song, Junchao ^{[2
]}

Li, Hui ^{[1
]}

Wang, Junpeng ^{[1
]}

Che, Quande ^{[1
]}

Wang, Gang ^{[1
]}

Fang, Yuan ^{[1
]}

机构：

[1] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China

[2] Shenzhen Gangchuang Bldg Mat Co Ltd, Shenzhen 518052, Peoples R China

来源：

MATERIALS LETTERS | 2019年 / 236卷

基金：

中国国家自然科学基金;

关键词：

Nanocomposites; SnS2/ZIF-8; templates; Flower-like; SnO2/ZnO heterostructures; Sensors; ZNO;

D O I：

10.1016/j.matlet.2018.10.148

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

SnO2-based flower-like sensitive materials derived from the self-assembled SnS2 microstructures with more active areas and less agglomeration represent an alternative option for new generation of gas sensors. Meanwhile, the introduction of ZIF-8 for semiconductor surface functionalization is expected to get multi-functional hybrid materials with synergistic effects of individual components. In the present work, SnS2/ZIF-8 derived porous flower-like SnO2/ZnO heterostructures have been synthesized by a facile template method and the subsequent heat-treatment process. Beside the uniform morphology with tunable composition and size distribution, the attractive findings are focused on the enhanced triethylamine (TEA) gas-sensing properties of the obtained composites. SnO2/ZnO heterostructures show an obvious improvement in TEA gas sensing performance at the operating temperature of 200 degrees C, giving a response of about 17.7-50 ppm TEA, which was about 2.2 times higher than that of the sensors based on pure SnO2. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：452 / 455

页数：4

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