High sensitivity and good selectivity of ultralong MoO3 nanobelts for trimethylamine gas

被引：220

作者：

Yang, Shuang ^{[1
]}

Liu, Yueli ^{[1
]}

Chen, Wen ^{[1
]}

Jin, Wei ^{[2
]}

Zhou, Jing ^{[1
]}

Zhang, Han ^{[3
]}

Zakharova, Galina S. ^{[4
]}

机构：

[1] Wuhan Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

[2] Wuhan Univ Technol, Sch Mat Sci & Engn, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China

[3] Shenzhen Univ, Minist Educ & Guangdong Prov, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China

[4] Russian Acad Sci, Ural Branch, Inst Solid State Chem, Ekaterinburg 620990, Russia

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2016年 / 226卷

基金：

对外科技合作项目（国际科技项目）;

关键词：

Ultralong MoO3 nanobelts; Gas sensor; Trimethylamine; Sensitivity; Selectivity; SENSING PROPERTIES; HOLLOW SPHERES; ETHANOL GAS; OXIDE; SINGLE; SENSOR; PERFORMANCE; OXIDATION; ROUTE;

D O I：

10.1016/j.snb.2015.12.005

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In the present work, ultralong MoO3 nanobelts are prepared by a facile hydrothermal method, which are flexible with an average length of 200 tim and width of 200-400 nm. Gas sensor based on ultralong MoO3 nanobelts shows a remarkable gas sensing properties towards trimethylamine (TMA) from 100 degrees C to 380 degrees C with a humidity level of about 55%. The optimum operating temperature is 240 degrees C with a response of 582 to 50 ppm TMA in static mode. The selectivity test among various reducing gases shows that the sensor has a quite good response towards TMA if compared with others gases, such as ethanol, ammonia, toluene, methanol and acetone. The probable gas sensing mechanism of the prepared MoO3 nanobelts is discussed as well. The results indicate that this kind of sensor has a promising application in TMA detection. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：478 / 485

页数：8

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