Simple solid-state chemical synthesis and gas-sensing properties of spinel ferrite materials with different morphologies

被引：46

作者：

Cao, Yali ^{[1
]}

Qin, Haiyu ^{[1
]}

Niu, Xiaojuan ^{[1
]}

Jia, Dianzeng ^{[1
]}

机构：

[1] Xinjiang Univ, Inst Appl Chem, Key Lab Adv Funct Mat, Key Lab Energy Mat Chem,Minist Educ, Urumqi 830046, Xinjiang, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2016年 / 42卷 / 09期

关键词：

Ferrite; Nanomaterials; Solid-state synthesis; Gas sensor; ROOM-TEMPERATURE; ONE-STEP; RAPID SYNTHESIS; THIN-FILMS; OXIDE; NANOPARTICLES; NANORODS; NANOWIRES; NANOTUBES; HYDROGEN;

D O I：

10.1016/j.ceramint.2016.03.184

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：

Spinel ferrite materials with different morphologies were synthesized by simple solid-state chemical reactions under mild reaction conditions and their gas-sensing properties were investigated in detail. It was found that all sensors based on the as-prepared materials had high responses, low working temperatures, rapid response/recovery characteristics, good selectivity and long-term stability to methanal and ethanol. Among them, ZnFe2O4 exhibited the best response, which was attributed to its intrinsic semiconductor nature and suitable microstructure. The response value reached 37.3 for 100 ppm of methanal at 260 degrees C and 29.1 for 100 ppm of ethanol at 300 degrees C. The response and recovery times were not longer than 5 s and 26 s. This study has yielded helpful insights to explore gas-sensing materials with good comprehensive performance. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：10697 / 10703

页数：7

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