Highly sensitive hydrogen gas sensor based on a MoS2-Pt nanoparticle composite

Sandeep Reddy Gottam; Chi Ting Tsai; Li Wen Wang; Chen Tao Wang; Chun Cheng Lin; Sheng Yuan Chu

doi:10.1016/j.apsusc.2019.144981

Highly sensitive hydrogen gas sensor based on a MoS₂-Pt nanoparticle composite

Sandeep Reddy Gottam, Chi Ting Tsai, Li Wen Wang, Chen Tao Wang, Chun Cheng Lin, Sheng Yuan Chu

研究成果: Article

1 引文斯高帕斯（Scopus）

摘要

A highly sensitive hydrogen gas sensor composed of an MoS₂-Pt nanoparticle thin film as the active layer is introduced. The sensor achieved ultra-fast response and recovery rates of 4 s and 19 s, respectively, for 100 ppm of H₂. The MoS₂-Pt composite film exhibits a high sensor response (R₁/R₂) of 10 when exposed to 100 ppm of H₂ gas, which outperforms the existing metal sulfide- based sensors. The stability of the device over a period of 70 days and the selectivity of the device is outstanding. A plausible mechanism for the MoS₂-Pt based H₂ gas sensor is discussed. Furthermore, the sensitivity, response and recovery rates for various concentrations of H₂ gas are studied. The sensor response is exceptionally promising. This sensor with metal sulfide-platinum composite active layers can be applied in the sensor field to amplify the sensing performance.

原文	English
文章編號	144981
期刊	Applied Surface Science
卷	506
DOIs	https://doi.org/10.1016/j.apsusc.2019.144981
出版狀態	Published - 2020 三月 15

指紋

All Science Journal Classification (ASJC) codes

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

引用此

Gottam, S. R., Tsai, C. T., Wang, L. W., Wang, C. T., Lin, C. C., & Chu, S. Y. (2020). Highly sensitive hydrogen gas sensor based on a MoS₂-Pt nanoparticle composite. Applied Surface Science, 506, [144981]. https://doi.org/10.1016/j.apsusc.2019.144981

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abstract = "A highly sensitive hydrogen gas sensor composed of an MoS2-Pt nanoparticle thin film as the active layer is introduced. The sensor achieved ultra-fast response and recovery rates of 4 s and 19 s, respectively, for 100 ppm of H2. The MoS2-Pt composite film exhibits a high sensor response (R1/R2) of 10 when exposed to 100 ppm of H2 gas, which outperforms the existing metal sulfide- based sensors. The stability of the device over a period of 70 days and the selectivity of the device is outstanding. A plausible mechanism for the MoS2-Pt based H2 gas sensor is discussed. Furthermore, the sensitivity, response and recovery rates for various concentrations of H2 gas are studied. The sensor response is exceptionally promising. This sensor with metal sulfide-platinum composite active layers can be applied in the sensor field to amplify the sensing performance.",

author = "Gottam, {Sandeep Reddy} and Tsai, {Chi Ting} and Wang, {Li Wen} and Wang, {Chen Tao} and Lin, {Chun Cheng} and Chu, {Sheng Yuan}",

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AU - Gottam, Sandeep Reddy

AU - Tsai, Chi Ting

AU - Wang, Li Wen

AU - Wang, Chen Tao

AU - Lin, Chun Cheng

AU - Chu, Sheng Yuan

PY - 2020/3/15

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存取文件

10.1016/j.apsusc.2019.144981