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Facile synthesis of nanosheets-assembled hierarchical copper oxide microspheres and their ethanol gas sensing properties

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Abstract

Hierarchical CuO microspheres have been successfully synthesized by a facile one-step hydrothermal method. Morphology analysis indicated that the as-obtained hierarchical CuO microspheres with diameters of ∼2.3 μm were assembled as monocrystalline nanosheets. The three-stage growth process from Cu(OH)2 to the final hierarchical CuO microspheres was studied in detail. Moreover, the gas sensing properties of the as-obtained materials for ethanol were studied. The results reveal that the hierarchical CuO microspheres based sensors exhibit good selectivity, high sensitivity as well as rapid response (2 s) and recovery (8 s) time for ethanol, all of which are attributed to their characteristic hierarchical structures assembled with monocrystalline nanosheets.

Graphical abstract: Facile synthesis of nanosheets-assembled hierarchical copper oxide microspheres and their ethanol gas sensing properties

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Publication details

The article was received on 07 Jul 2017, accepted on 31 Oct 2017 and first published on 14 Nov 2017


Article type: Paper
DOI: 10.1039/C7NJ02449E
Citation: New J. Chem., 2017, Advance Article
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    Facile synthesis of nanosheets-assembled hierarchical copper oxide microspheres and their ethanol gas sensing properties

    Q. Zhao, G. Ma, C. Zhai, X. Yang and M. Zhang, New J. Chem., 2017, Advance Article , DOI: 10.1039/C7NJ02449E

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