Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 910, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2022.164763
Keywords
Tin dioxide; Porous nanosheets; Gas sensor; Volatile organic compounds
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Funding
- National Research Foundation of Korea [NRF-2019R1A5A8080290]
- Natural Science Research Project for Universities in Anhui Province [KJ2019A0480]
- Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application [LFCCMCA-09]
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources [LCECSC-01]
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In this study, cross-linked porous tin dioxide nanosheets were successfully synthesized using three-dimensional reduced graphene oxide as a template. The resulting nanosheets exhibited high sensitivity to toxic organic vapors, making them promising candidates for practical detectors of volatile organic compounds.
Semiconductor metal oxide nanostructures with large specific surface areas and high porosity will enhance their gas-sensing performance. Here, cross-linked porous tin dioxide nanosheets were obtained using three-dimensional reduced graphene oxide as a template followed by an annealing process. The as -synthesized porous SnO2 nanosheets were composed of nanocrystals with a mean diameter of ca. 7.6 nm. The products were characterized using a range of techniques. The sensing property of the cross-linked porous SnO2 nanosheets for toxic organic vapors, such as ethanol, acetone, isopropanol, benzene, methylbenzene, methanol, and formaldehyde, were studied. The sensor showed a high response of 37.9 for 100 ppm acetone, making it a promising candidate as a practical detector of volatile organic compounds. (C) 2022 Elsevier B.V. All rights reserved.
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