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- Title
Preparation of 3D rose-like nickel oxide nanoparticles by electrodeposition method and application in gas sensors.
- Authors
Zhang, Yong; Xie, Long-zhen; Yuan, Chao-xin; Zhang, Chun-lin; Liu, Su; Peng, Ying-quan; Li, Hai-rong; Zhang, Miao
- Abstract
3D rose-like NiO nanoparticles have been prepared by electrodeposition method. The samples were characterized through X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The phase and morphology observations showed the formation of rose-like hierarchical structures with an average particle diameter of 400-500 nm. Gas sensing properties of the as-synthesized rose-like NiO nanoparticles were evaluated by the detection of volatile and toxic gases including ethanol, methanol, and acetone. It was found that NiO nanoroses exhibited a highly response to the three gases at 230 °C. Furthermore, at 5 ppm, the NiO nanorose-based sensor gave a higher response to ethanol ( R/ R = 9.11) and methanol ( R/ R = 8.36), in comparison with acetone ( R/ R = 6.44). The results indicated the NiO nanorose-based sensors displayed a rapid response and recovery as well as good reproducibility.
- Subjects
NICKEL oxides; ELECTROPLATING; X-ray diffraction; SCANNING electron microscopy; TRANSMISSION electron microscopy
- Publication
Journal of Materials Science: Materials in Electronics, 2016, Vol 27, Issue 2, p1817
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-015-3959-2