Hung, Nguyen Manh and Van Hoang, Nguyen and Hung, Pham Tien and Hoat, Phung Dinh and Hieu, Nguyen Minh (2024) Selective Carbon Monoxide-Gas-Sensing Properties over CuO/Rb2CO3 Nanohybrid Structure. Solid State Phenomena, 368. 17 – 27. ISSN 10120394
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CuO/Rb2CO3 nanohybrid structures are fabricated, and their selectivity to CO over H2 as well as related sensing mechanisms are investigated. A series of CuO/Rb2CO3 nanohybrid structures are deposited on alumina substrates by the bar-coating method. The chemical, morphological, and structural properties of the nanohybrid structures are examined by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and Raman spectroscopy. The best selectivity to CO over H2 and highest CO response level are observed upon CuO/Rb2CO3 nanohybrid (5 wt. Rb2CO3). The gas-sensing performance of the CuO/Rb2CO3 hybrid nanostructures is analyzed to prove that the catalytic properties of Rb2CO3 and its modulation ability to hole accumulation layer thickness of CuO determine the outstanding selectivity and high response level of CuO/Rb2CO3 nanohybrid structure compared to pristine CuO nanoparticles. © 2024 Trans Tech Publications Ltd, All Rights Reserved.
| Item Type: | Article |
|---|---|
| Divisions: | Offices > Office of International Cooperation |
| Identification Number: | 10.4028/p-zMF1Pl |
| URI: | http://eprints.lqdtu.edu.vn/id/eprint/11515 |
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