Preparation and Formation Mechanism of Cuprous Oxide Microcrystals

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (4): 809.

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Preparation and Formation Mechanism of Cuprous Oxide Microcrystals

NING Jia-Jia^1,2, XIAO Ning-Ru², LIN Ao-Lei^2,3*

1. College of Material Science and Engineering,
2. State Key Laboratory of Superhard Materials,
3. Advanced Research Institute, Jilin University, Changchun 130012, China

Received:2010-10-20 Revised:2010-12-26 Online:2011-04-10 Published:2011-03-09
Contact: LIN Ao-Lei E-mail:linal@jlu.edu.cn
Supported by:
国家自然科学基金(批准号: 21073071,10979001)、吉林大学研究生创新基金(批准号: 421050230180)和国家“九七三”计划项目(批准号: 2007CB808000, 2011CB808200)资助.

Abstract

Abstract: Hexagram-like cuprous oxide microcrystals have been synthesized by hydrothermal approach. The hexagram-like cuprous oxide microcrystals are produced by etching the six {111} facets in octahedron. The influence of reaction parameters on the shape and size of products has been discussed, the concentration of precursor has important effect on the shape of products. Only the concentration of procursor is low enough, the cuprous oxide octahedron should be formed. With increasing the concentration, the shape of products would transform to sphere. Ammonia has influence on the shape. Sodium citrate is the reduction and surfactant in the reaction. The etching on the octahedron is induced by both ammonia and sodium citrate.

Key words: Cu2O, microcrystals, etch, surfactant, mechanism

CLC Number:

O648

TrendMD:

NING Jia-Jia, XIAO Ning-Ru, LIN Ao-Lei*. Preparation and Formation Mechanism of Cuprous Oxide Microcrystals[J]. Chem. J. Chinese Universities, 2011, 32(4): 809.

References

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Preparation and Formation Mechanism of Cuprous Oxide Microcrystals

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