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Issue 108, 2014
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SnO2@Co3O4 p–n heterostructures fabricated by electrospinning and mechanism analysis enhanced acetone sensing

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Abstract

SnO2@Co3O4 p–n heterostructure nanotubes have been obtained for the first time via precursor nanofibres and subsequent annealing. The structure and properties of heterostructure nanotubes were characterized using various analysis methods. The responses of composites with different SnO2 content to 10 ppm acetone have been measured, and found that the composites exhibited higher sensitivity, lower operating temperature and faster response than pure Co3O4. The improvement of sensing characteristics is attributed to the formation of a p–n heterojunction between the two types of semiconductor oxides.

Graphical abstract: SnO2@Co3O4 p–n heterostructures fabricated by electrospinning and mechanism analysis enhanced acetone sensing

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Supplementary files

Article information


Submitted
04 Sep 2014
Accepted
31 Oct 2014
First published
31 Oct 2014

RSC Adv., 2014,4, 62862-62868
Article type
Paper

SnO2@Co3O4 p–n heterostructures fabricated by electrospinning and mechanism analysis enhanced acetone sensing

S. Bai, H. Liu, R. Luo, A. Chen and D. Li, RSC Adv., 2014, 4, 62862
DOI: 10.1039/C4RA09766A

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