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Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method
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| Zeitschriftentitel: | Sensors |
|---|---|
| Personen und Körperschaften: | , , , , , , , , , , , , , , |
| In: | Sensors, 19, 2019, 13, S. 2958 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
MDPI AG
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| Schlagwörter: |
| author_facet |
Lu, Shaohe Hu, Xuefeng Zheng, Hua Qiu, Junwen Tian, Renbing Quan, Wenjing Min, Xinjie Ji, Peng Hu, Yewei Cheng, Suishi Du, Wei Chen, Xiaoqiang Cui, Beiliang Wang, Xiaorong Zhang, Wei Lu, Shaohe Hu, Xuefeng Zheng, Hua Qiu, Junwen Tian, Renbing Quan, Wenjing Min, Xinjie Ji, Peng Hu, Yewei Cheng, Suishi Du, Wei Chen, Xiaoqiang Cui, Beiliang Wang, Xiaorong Zhang, Wei |
|---|---|
| author |
Lu, Shaohe Hu, Xuefeng Zheng, Hua Qiu, Junwen Tian, Renbing Quan, Wenjing Min, Xinjie Ji, Peng Hu, Yewei Cheng, Suishi Du, Wei Chen, Xiaoqiang Cui, Beiliang Wang, Xiaorong Zhang, Wei |
| spellingShingle |
Lu, Shaohe Hu, Xuefeng Zheng, Hua Qiu, Junwen Tian, Renbing Quan, Wenjing Min, Xinjie Ji, Peng Hu, Yewei Cheng, Suishi Du, Wei Chen, Xiaoqiang Cui, Beiliang Wang, Xiaorong Zhang, Wei Sensors Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method Electrical and Electronic Engineering Biochemistry Instrumentation Atomic and Molecular Physics, and Optics Analytical Chemistry |
| author_sort |
lu, shaohe |
| spelling |
Lu, Shaohe Hu, Xuefeng Zheng, Hua Qiu, Junwen Tian, Renbing Quan, Wenjing Min, Xinjie Ji, Peng Hu, Yewei Cheng, Suishi Du, Wei Chen, Xiaoqiang Cui, Beiliang Wang, Xiaorong Zhang, Wei 1424-8220 MDPI AG Electrical and Electronic Engineering Biochemistry Instrumentation Atomic and Molecular Physics, and Optics Analytical Chemistry http://dx.doi.org/10.3390/s19132958 <jats:p>Detecting xylene gas is an important means of avoiding human harm from gas poisoning. A precise measurement demands that the gas sensor used must have high sensitivity, high selectivity, and low working temperature. To meet these requirements, in this study, Sn2+-doped NiO flower-like microspheres (SNM) with different amounts of Sn2+ synthesized by a one-step hydrothermal process were investigated. The responses of gas sensors based on different Sn2+-doped NiO materials for various targeting gases were fully characterized. It was found that all of the synthesized materials exhibited the best gas response at a working temperature of 180 degrees, which was much lower than the previously reported working temperature range of 300–500 degrees. When exposed to 10 ppm xylene, the 8 at% Sn2+-doped NiO sensor (mol ratio) exhibited the highest response, with a value of 30 (Rg/Ra). More significantly, the detection limit of the 8 at% Sn2+-doped NiO sensor for xylene is down in the ppb level. The Sn2+-doped NiO material also exhibits excellent selectivity for other gases with long-term stability and repeatability. The significant improvement in the response to xylene can theoretically be attributed to a decrease in the intrinsic hole carrier concentration, higher amounts of adsorbed oxygen and active sites.</jats:p> Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method Sensors |
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| title |
Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method |
| title_unstemmed |
Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method |
| title_full |
Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method |
| title_fullStr |
Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method |
| title_full_unstemmed |
Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method |
| title_short |
Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method |
| title_sort |
highly selective, ppb-level xylene gas detection by sn2+-doped nio flower-like microspheres prepared by a one-step hydrothermal method |
| topic |
Electrical and Electronic Engineering Biochemistry Instrumentation Atomic and Molecular Physics, and Optics Analytical Chemistry |
| url |
http://dx.doi.org/10.3390/s19132958 |
| publishDate |
2019 |
| physical |
2958 |
| description |
<jats:p>Detecting xylene gas is an important means of avoiding human harm from gas poisoning. A precise measurement demands that the gas sensor used must have high sensitivity, high selectivity, and low working temperature. To meet these requirements, in this study, Sn2+-doped NiO flower-like microspheres (SNM) with different amounts of Sn2+ synthesized by a one-step hydrothermal process were investigated. The responses of gas sensors based on different Sn2+-doped NiO materials for various targeting gases were fully characterized. It was found that all of the synthesized materials exhibited the best gas response at a working temperature of 180 degrees, which was much lower than the previously reported working temperature range of 300–500 degrees. When exposed to 10 ppm xylene, the 8 at% Sn2+-doped NiO sensor (mol ratio) exhibited the highest response, with a value of 30 (Rg/Ra). More significantly, the detection limit of the 8 at% Sn2+-doped NiO sensor for xylene is down in the ppb level. The Sn2+-doped NiO material also exhibits excellent selectivity for other gases with long-term stability and repeatability. The significant improvement in the response to xylene can theoretically be attributed to a decrease in the intrinsic hole carrier concentration, higher amounts of adsorbed oxygen and active sites.</jats:p> |
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| author | Lu, Shaohe, Hu, Xuefeng, Zheng, Hua, Qiu, Junwen, Tian, Renbing, Quan, Wenjing, Min, Xinjie, Ji, Peng, Hu, Yewei, Cheng, Suishi, Du, Wei, Chen, Xiaoqiang, Cui, Beiliang, Wang, Xiaorong, Zhang, Wei |
| author_facet | Lu, Shaohe, Hu, Xuefeng, Zheng, Hua, Qiu, Junwen, Tian, Renbing, Quan, Wenjing, Min, Xinjie, Ji, Peng, Hu, Yewei, Cheng, Suishi, Du, Wei, Chen, Xiaoqiang, Cui, Beiliang, Wang, Xiaorong, Zhang, Wei, Lu, Shaohe, Hu, Xuefeng, Zheng, Hua, Qiu, Junwen, Tian, Renbing, Quan, Wenjing, Min, Xinjie, Ji, Peng, Hu, Yewei, Cheng, Suishi, Du, Wei, Chen, Xiaoqiang, Cui, Beiliang, Wang, Xiaorong, Zhang, Wei |
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| description | <jats:p>Detecting xylene gas is an important means of avoiding human harm from gas poisoning. A precise measurement demands that the gas sensor used must have high sensitivity, high selectivity, and low working temperature. To meet these requirements, in this study, Sn2+-doped NiO flower-like microspheres (SNM) with different amounts of Sn2+ synthesized by a one-step hydrothermal process were investigated. The responses of gas sensors based on different Sn2+-doped NiO materials for various targeting gases were fully characterized. It was found that all of the synthesized materials exhibited the best gas response at a working temperature of 180 degrees, which was much lower than the previously reported working temperature range of 300–500 degrees. When exposed to 10 ppm xylene, the 8 at% Sn2+-doped NiO sensor (mol ratio) exhibited the highest response, with a value of 30 (Rg/Ra). More significantly, the detection limit of the 8 at% Sn2+-doped NiO sensor for xylene is down in the ppb level. The Sn2+-doped NiO material also exhibits excellent selectivity for other gases with long-term stability and repeatability. The significant improvement in the response to xylene can theoretically be attributed to a decrease in the intrinsic hole carrier concentration, higher amounts of adsorbed oxygen and active sites.</jats:p> |
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| language | English |
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| physical | 2958 |
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| spelling | Lu, Shaohe Hu, Xuefeng Zheng, Hua Qiu, Junwen Tian, Renbing Quan, Wenjing Min, Xinjie Ji, Peng Hu, Yewei Cheng, Suishi Du, Wei Chen, Xiaoqiang Cui, Beiliang Wang, Xiaorong Zhang, Wei 1424-8220 MDPI AG Electrical and Electronic Engineering Biochemistry Instrumentation Atomic and Molecular Physics, and Optics Analytical Chemistry http://dx.doi.org/10.3390/s19132958 <jats:p>Detecting xylene gas is an important means of avoiding human harm from gas poisoning. A precise measurement demands that the gas sensor used must have high sensitivity, high selectivity, and low working temperature. To meet these requirements, in this study, Sn2+-doped NiO flower-like microspheres (SNM) with different amounts of Sn2+ synthesized by a one-step hydrothermal process were investigated. The responses of gas sensors based on different Sn2+-doped NiO materials for various targeting gases were fully characterized. It was found that all of the synthesized materials exhibited the best gas response at a working temperature of 180 degrees, which was much lower than the previously reported working temperature range of 300–500 degrees. When exposed to 10 ppm xylene, the 8 at% Sn2+-doped NiO sensor (mol ratio) exhibited the highest response, with a value of 30 (Rg/Ra). More significantly, the detection limit of the 8 at% Sn2+-doped NiO sensor for xylene is down in the ppb level. The Sn2+-doped NiO material also exhibits excellent selectivity for other gases with long-term stability and repeatability. The significant improvement in the response to xylene can theoretically be attributed to a decrease in the intrinsic hole carrier concentration, higher amounts of adsorbed oxygen and active sites.</jats:p> Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method Sensors |
| spellingShingle | Lu, Shaohe, Hu, Xuefeng, Zheng, Hua, Qiu, Junwen, Tian, Renbing, Quan, Wenjing, Min, Xinjie, Ji, Peng, Hu, Yewei, Cheng, Suishi, Du, Wei, Chen, Xiaoqiang, Cui, Beiliang, Wang, Xiaorong, Zhang, Wei, Sensors, Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method, Electrical and Electronic Engineering, Biochemistry, Instrumentation, Atomic and Molecular Physics, and Optics, Analytical Chemistry |
| title | Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method |
| title_full | Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method |
| title_fullStr | Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method |
| title_full_unstemmed | Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method |
| title_short | Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method |
| title_sort | highly selective, ppb-level xylene gas detection by sn2+-doped nio flower-like microspheres prepared by a one-step hydrothermal method |
| title_unstemmed | Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method |
| topic | Electrical and Electronic Engineering, Biochemistry, Instrumentation, Atomic and Molecular Physics, and Optics, Analytical Chemistry |
| url | http://dx.doi.org/10.3390/s19132958 |