Synthesis mechanism of heterovalent Sn2O3 nanosheets in oxidation annealing process

doi:10.1088/1674-1056/24/7/070505

中国物理B ›› 2015, Vol. 24 ›› Issue (7): 70505-070505.doi: 10.1088/1674-1056/24/7/070505

Synthesis mechanism of heterovalent Sn₂O₃ nanosheets in oxidation annealing process

赵俊华^a, 谭瑞琴^b, 杨晔^c, 许炜^c, 李佳^c, 沈文峰^c, 吾国强^a, 杨旭峰^a, 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

收稿日期:2014-11-27 修回日期:2015-05-05 出版日期:2015-07-05 发布日期:2015-07-05
基金资助:
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).

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

Received:2014-11-27 Revised:2015-05-05 Online:2015-07-05 Published:2015-07-05
Contact: Zhao Jun-Hua E-mail:Zhaojh1018@163.com
Supported by:
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).

摘要/Abstract

摘要： 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.

关键词: nanosheets, metastable phase, synthesis mechanism, intermediate tin oxides

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.

Key words: intermediate tin oxides, nanosheets, metastable phase, synthesis mechanism

中图分类号: (Phase transitions: general studies)

05.70.Fh

64.60.My (Metastable phases) 62.23.Kn (Nanosheets)

赵俊华, 谭瑞琴, 杨晔, 许炜, 李佳, 沈文峰, 吾国强, 杨旭峰, 宋伟杰. Synthesis mechanism of heterovalent Sn₂O₃ nanosheets in oxidation annealing process[J]. 中国物理B, 2015, 24(7): 70505-070505.

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[J]. Chin. Phys. B, 2015, 24(7): 70505-070505.

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Synthesis mechanism of heterovalent Sn₂O₃ nanosheets in oxidation annealing process

Synthesis mechanism of heterovalent Sn₂O₃ nanosheets in oxidation annealing process

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