Effects of rare earth elements doping on gas sensing properties of ZnO nanowires

被引：57

作者：

Zhao, Sikai ^{[1
]}

Shen, Yanbai ^{[1
,2
]}

Li, Ang ^{[1
]}

Chen, Yunshuang ^{[1
]}

Gao, Shuling ^{[1
]}

Liu, Wengang ^{[1
]}

Wei, Dezhou ^{[1
]}

机构：

[1] Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110819, Peoples R China

[2] Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110189, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2021年 / 47卷 / 17期

基金：

中国国家自然科学基金;

关键词：

Rare earth elements; ZnO; Nanowires; Ethanol; Gas sensing; THIN-FILMS; PERFORMANCE; MICROSPHERES; NANOSPHERES; DESIGN; XPS;

D O I：

10.1016/j.ceramint.2021.05.133

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：

The effects of rare earth elements (Ce, Eu, and Er) doping on the microstructure and gas sensing properties of ZnO nanowires were investigated. The Ce, Eu, Er-doped ZnO nanowires and pristine ZnO nanowires were synthesized via a solvothermal route. The structure of the prepared samples was studied and compared by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron microscopy. The gas sensors were fabricated by coating the prepared samples on aluminum oxides tube-based Au sensing electrode, with Ni-Cr heating wire to control the operating temperature. The operating temperature of all sensors was determined to be 300 degrees C with consideration of ethanol response. At this temperature, all sensors showed good ethanol sensing performance, with the 1%Ce-doped ZnO nanowires-based sensor exhibited the highest ethanol response over the other sensors. The mechanism for the microstructure and gas sensing behavior difference of various samples was discussed.

引用

页码：24218 / 24226

页数：9

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