Enhanced nitrogen oxide sensing performance based on tin-doped tungsten oxide nanoplates by a hydrothermal method.

Wang, Chong; Guo, Lanlan; Xie, Ning; Kou, Xueying; Sun, Yanfeng; Chuai, Xiaohong; Zhang, Sumei; Song, Hongwei; Wang, Yue; Lu, Geyu

Wang, Chong; Guo, Lanlan; Xie, Ning; Kou, Xueying; Sun, Yanfeng; Chuai, Xiaohong; Zhang, Sumei; Song, Hongwei; Wang, Yue; Lu, Geyu.

Afiliação

Wang C; State Key Laboratory of Automotive Simulation and Control, Jilin University, 5988 Renmin Avenue, Changchun 130012, China; State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
Guo L; State Key Laboratory of Automotive Simulation and Control, Jilin University, 5988 Renmin Avenue, Changchun 130012, China; State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
Xie N; State Key Laboratory of Automotive Simulation and Control, Jilin University, 5988 Renmin Avenue, Changchun 130012, China; State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
Kou X; State Key Laboratory of Automotive Simulation and Control, Jilin University, 5988 Renmin Avenue, Changchun 130012, China; State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
Sun Y; State Key Laboratory of Automotive Simulation and Control, Jilin University, 5988 Renmin Avenue, Changchun 130012, China; State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China. Electronic addr
Chuai X; State Key Laboratory of Automotive Simulation and Control, Jilin University, 5988 Renmin Avenue, Changchun 130012, China; State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
Zhang S; State Key Laboratory of Automotive Simulation and Control, Jilin University, 5988 Renmin Avenue, Changchun 130012, China; State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
Song H; State Key Laboratory of Automotive Simulation and Control, Jilin University, 5988 Renmin Avenue, Changchun 130012, China; State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
Wang Y; State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
Lu G; State Key Laboratory of Automotive Simulation and Control, Jilin University, 5988 Renmin Avenue, Changchun 130012, China; State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China. Electronic addr

J Colloid Interface Sci ; 512: 740-749, 2018 Feb 15.

Article em En | MEDLINE | ID: mdl-29107925

ABSTRACT

ABSTRACT

The great demand for gas sensors in practical applications has stimulated tremendous attention in this area due to its important significance in real life. A facile synthesis of WO3 nanoplates and their subsequent Sn doping strategy by using a hydrothermal method was investigated to enhance gas sensing performance for NO2 gas, one of the gases toxic to human beings and the environment. Various techniques were used to characterize all the products. The morphology characterizations demonstrated that all the samples exhibited a similar nanoplate structure with or without Sn doping. The gas sensing properties of the sensors based on different doping concentrations (0, 1, 2 and 5wt%) have been systematically investigated. The sensor based on the 2wt% Sn-doped WO3 nanoplates showed the maximum response to NO2 (55-100ppb NO2). Furthermore, the introduction of Sn ions into the sensing materials of WO3 resulted in shorter response and recovery times. This finding could be attributed to the increased number of oxygen vacancies on the surface of the sensing material and the resistance of the gas sensors. The results provide a new doping strategy to fabricate high performance NO2 gas sensors.

Palavras-chave

Hydrothermal method; NO(2) gas sensor; Nanoplates; Sn-doped tungsten oxide

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Texto completo: 1 Bases de dados: MEDLINE Idioma: En Revista: J Colloid Interface Sci Ano de publicação: 2018 Tipo de documento: Article País de afiliação: China