Temperature-controlled resistive sensing of gaseous H2S or NO2 by using flower-like palladium-doped SnO2 nanomaterials.

Meng, Lingling; Li, Yuliang; Yang, Man; Chuai, Xiaohong; Zhou, Zhijie; Hu, Changhua; Sun, Peng; Liu, Fangmeng; Yan, Xu; Lu, Geyu

Temperature-controlled resistive sensing of gaseous H₂S or NO₂ by using flower-like palladium-doped SnO₂ nanomaterials.

Meng, Lingling; Li, Yuliang; Yang, Man; Chuai, Xiaohong; Zhou, Zhijie; Hu, Changhua; Sun, Peng; Liu, Fangmeng; Yan, Xu; Lu, Geyu.

Afiliación

Meng L; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of gas sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People's Republic of China.
Li Y; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of gas sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People's Republic of China.
Yang M; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of gas sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People's Republic of China.
Chuai X; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of gas sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People's Republic of China. xhchuai@jlu.edu.cn.
Zhou Z; Rocket Force University of Engineering, Xi'an, 710000, People's Republic of China.
Hu C; Rocket Force University of Engineering, Xi'an, 710000, People's Republic of China.
Sun P; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of gas sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People's Republic of China.
Liu F; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of gas sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People's Republic of China.
Yan X; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of gas sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People's Republic of China.
Lu G; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of gas sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People's Republic of China. lugy@jlu.edu.cn.

Mikrochim Acta ; 187(5): 297, 2020 04 28.

Article en En | MEDLINE | ID: mdl-32346801

ABSTRACT

ABSTRACT

Palladium-doped SnO2 nanomaterials, with palladium in fractions from 0 to 10 mol% were hydrothermally synthesized and characterized by XRD, FESEM, TEM, and XPS. Their gas sensing properties were studied in two temperature ranges of 75-95 °C and 160-210 °C. The sensor using 5 mol% Pd-doped SnO2 exhibits temperature-dependent sensing property. NO2 can be detected at 80 °C, while H2S is preferably detected at 180 °C. The response to 10 ppm H2S is 50 times higher than that of the undoped sample. Its detection limit is 500 ppb. For NO2, the sensor exhibited strong response and a lower detection limit of 20 ppb. In view of the selective detection of H2S and NO2 by regulating the temperature, palladium-doped SnO2 has great prospects in the detection of H2S and NO2. Graphical abstract Schematic of the gas sensing mechanism of the S-5% Pd doped SnO2.

Palabras clave

Gas sensors; H2S; Hydrothermal method; NO2; Pd-doped SnO2; Temperature-adjusted

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Mikrochim Acta Año: 2020 Tipo del documento: Article