Journal
JOURNAL OF MATERIALS SCIENCE
Volume 51, Issue 3, Pages 1428-1436Publisher
SPRINGER
DOI: 10.1007/s10853-015-9462-6
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Funding
- National Natural Science Foundation of China [51205274, 51205276]
- Shanxi Province Science Foundation for Youths [2013021017-2]
- Shanxi Scholarship Council of China [2013-035]
- Doctoral Fund of Ministry of Education of China [20121402120008]
- China Postdoctoral Science Foundation [2013M530894]
- Graduate Education Innovation Fund [02100738]
- Technology Foundation for Selected Overseas Shanxi Scholar [[2014] 95]
- Science and Technology Major Project of the Shanxi Science and Technology Department [20121101004]
- Key Disciplines Construction in Colleges and Universities of Shanxi [[2012] 45]
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In this paper, brush-like ZnO nanowires were synthesized by two-step method combining electrospinning and hydrothermal. The phase purity, morphology, and structure of the brush-like ZnO hierarchical structures were characterized, which exhibited the improved surface area, comparing with ZnO nanofibers. The gas-sensing experiments were carried out on brush-like ZnO nanowires and ZnO nanofibers sensors under optimum working temperature. The highest response of brush-like ZnO nanowires to 100 ppm toluene and CO can reach to 12.7 and 5.9, respectively, which was much higher than that of ZnO nanofibers. Moreover, the brush-like ZnO nanowires sensor also shows fast response/recovery time to toluene (9/4 s) and CO (6/2 s), low detection limit (1 ppm to toluene). The measured results demonstrate that brush-like ZnO nanowires are potential as a novel sensing material for practical gas-sensing applications.
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