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- Title
MoO<sub>3</sub> structures transition from nanoflowers to nanorods and their sensing performances.
- Authors
Hu, Li-Bin; Huang, Xin-Yu; Zhang, Shan; Chen, Xue; Dong, Xian-Hui; Jin, He; Jiang, Zhen-Yu; Gong, Xiao-Ran; Xie, Yi-Xuan; Li, Chen; Chi, Zong-Tao; Xie, Wan-Feng
- Abstract
Morphology transformation and crystal growth strategies of metal oxide semiconductors are still extensively studied in material science recently, because the morphology and crystallinity significantly affect the physicochemical characteristics of metal oxide nanomaterials. However, understanding the morphology changes of α-MoO3 induced by annealing is still a challenge. Herein, the nanostructure transition of α-MoO3 induced by the annealing temperature is carefully investigated via the XRD and SEM methods. It can be found that crystallization is highly dependent on the annealing temperature. Interestingly, the MoO3 nanoflowers can change into nanosheets at 500 °C. Afterward, the nanosheets turned into microrods with the increase in annealing temperature due to the continuous growth of MoO3 crystal. On the other hand, the sensing performances of various MoO3 nanostructures are studied toward ethanol gas. Compared to the MoO3 nanoflowers and microrods, the MoO3 nanosheets-based sensor exhibits superior sensing performance to ethanol, and the maximum response value is 8.06.
- Subjects
METAL crystal growth; MATERIALS science; METAL oxide semiconductors; CRYSTAL morphology; NANOSTRUCTURED materials; NANORODS
- Publication
Journal of Materials Science: Materials in Electronics, 2021, Vol 32, Issue 19, p23728
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-021-06464-7