Metal-organic frameworks derived tin-doped cobalt oxide yolk-shell nanostructures and their gas sensing properties.

Guo, Lanlan; Chen, Fang; Xie, Ning; Wang, Chong; Kou, Xueying; Sun, Yanfeng; Ma, Jian; Liang, Xishuang; Gao, Yuan; Lu, Geyu

Guo, Lanlan; Chen, Fang; Xie, Ning; Wang, Chong; Kou, Xueying; Sun, Yanfeng; Ma, Jian; Liang, Xishuang; Gao, Yuan; Lu, Geyu.

Afiliación

Guo L; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province and College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
Chen F; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province and College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
Xie N; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province and College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
Wang C; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province and College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
Kou X; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province and College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
Sun Y; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province and College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China. Electronic address: syf@jlu.edu.cn.
Ma J; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province and College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
Liang X; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province and College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
Gao Y; State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province and 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 and College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China. Electronic address: lugy@jlu.edu.cn.

J Colloid Interface Sci ; 528: 53-62, 2018 Oct 15.

Article en En | MEDLINE | ID: mdl-29807356

RESUMEN

Yolk-shell nanomaterials with controlled morphology have received great attention because of their promising applications in gas sensing. Here, we reported the facile synthesis of pure and 1-5â¯mol% Sn doped Co3O4 yolk-shell nanostructures by calcinating the Co based metal-organic framework (MOF, ZIF-67) prepared from hydrothermal method. The morphologies of the as-obtained samples were characterized by various experimental techniques. Furthermore, the gas sensing properties were systematically measured. Gas sensors based on 3â¯mol% Sn doped Co3O4 yolk-shell nanostructures exhibited extremely enhanced response to ethanol at 200â¯°C (Rg/Raâ¯=â¯13.4-100â¯ppm at 200â¯°C) and low detection limit (Rg/Raâ¯=â¯1.3-1â¯ppm ethanol at 200â¯°C). Most importantly, the gas response to 100â¯ppm ethanol is still maintained well after continuous measurement for 20â¯days.

Palabras clave

Ethanol; Metal-organic framework; Sn doped Co(3)O(4); Yolk-shell; ZIF-67

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