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Synthesis mechanism of nanoporous Sn3O4 nanosheets by hydrothermal process without any additives |
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, Zhu You-Liang (朱友良)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 Nanoporous anorthic-phase Sn3O4 nanosheets are successfully fabricated via a hydrothermal process without any additives. With the pH value of the precursor increasing from 2.0 to 11.8, the valence of the precursor changes from mixed valence (the ratio of Sn2+ to Sn4+ is 2.7:1) to pure bivalent, and the product transformed from Sn3O4 to SnO mesocrystals. When doping SbCl3 to the alkaline precursor, the valence of the precursor shows mixed valence with the ratio of Sn2+ to Sn4+ being 2.6:1 and Sn3O4 is synthesized after the hydrothermal process. The valence state of Sn species in the precursor is the key factor of the formation of Sn3O4. The synthesis mechanism is discussed and proposed. These experimental results expand the knowledge base that can be used to guide technological applications of intermediate tin oxide materials.
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Received: 24 November 2014
Revised: 08 January 2015
Accepted manuscript online:
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PACS:
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62.23.Kn
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(Nanosheets)
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61.46.Hk
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(Nanocrystals)
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61.82.Rx
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(Nanocrystalline materials)
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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 (Grant No. BSYJ201412). |
Corresponding Authors:
Zhao Jun-Hua
E-mail: Zhaojh1018@163.com
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About author: 62.23.Kn; 61.46.Hk; 61.82.Rx |
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), Zhu You-Liang (朱友良), Yang Xu-Feng (杨旭峰), Song Wei-Jie (宋伟杰) Synthesis mechanism of nanoporous Sn3O4 nanosheets by hydrothermal process without any additives 2015 Chin. Phys. B 24 066202
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