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Synthesis mechanism of heterovalent Sn2O3 nanosheets in oxidation annealing process |
| Zhao Jun-Hua (赵俊华)a, Tan Rui-Qin (谭瑞琴)b, Yang Ye (杨晔)c, Xu Wei (许炜)c, Li Jia (李佳)c, Shen Wen-Feng (沈文峰)c, Wu Guo-Qiang (吾国强)a, Yang Xu-Feng (杨旭峰)a, Song Wei-Jie (宋伟杰)c |
a College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, China;
b Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China;
c Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China |
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Abstract Heterovalent Sn2O3 nanosheets were fabricated via an oxidation annealing process and the formation mechanism was investigated. The temperature required to complete the phase transformation from Sn3O4 to Sn2O3 was considered. Two contrasting experiments showed that both oxygen and heating were not necessary conditions for the phase transition. Sn2O3 was formed under an argon protective atmosphere by annealing and could also be obtained at room temperature by exposing Sn3O4 in atmosphere or dispersing in ethanol. The synthesis mechanism was proposed and discussed. This fundamental research is important for the technological applications of intermediate tin oxide materials.
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Received: 27 November 2014
Revised: 05 May 2015
Accepted manuscript online:
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PACS:
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05.70.Fh
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(Phase transitions: general studies)
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64.60.My
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(Metastable phases)
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62.23.Kn
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(Nanosheets)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 21377063, 51102250, 21203226, and 21205127) and the Personnel Training Foundation of Quzhou University, China (Grant No. BSYJ201412). |
Corresponding Authors:
Zhao Jun-Hua
E-mail: Zhaojh1018@163.com
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Cite this article:
Zhao Jun-Hua (赵俊华), Tan Rui-Qin (谭瑞琴), Yang Ye (杨晔), Xu Wei (许炜), Li Jia (李佳), Shen Wen-Feng (沈文峰), Wu Guo-Qiang (吾国强), Yang Xu-Feng (杨旭峰), Song Wei-Jie (宋伟杰) Synthesis mechanism of heterovalent Sn2O3 nanosheets in oxidation annealing process 2015 Chin. Phys. B 24 070505
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