期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷 27, 期 2, 页码 1817-1827出版社
SPRINGER
DOI: 10.1007/s10854-015-3959-2
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资金
- Provincial Natural Science Foundation of Gansu [1107RJZA090]
- Foundation of State Key Library of Functional Materials for Informatics (Shanghai Institute of Microsystem and Information Technology)
- National Natural Science Foundation of China [61204106]
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 A degrees C. Furthermore, at 5 ppm, the NiO nanorose-based sensor gave a higher response to ethanol (R (g)/R (a) = 9.11) and methanol (R (g)/R (a) = 8.36), in comparison with acetone (R (g)/R (a) = 6.44). The results indicated the NiO nanorose-based sensors displayed a rapid response and recovery as well as good reproducibility.
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