Synthesis of Diamond with Potassium and Sodium Carbonate Under High Pressure

Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (11): 2127.

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Synthesis of Diamond with Potassium and Sodium Carbonate Under High Pressure

JIAO Xiao-Peng, LI Ben-Xian, WANG Ran, YANG Bin, LU Feng-Guo, ZHAO Xu-Dong, LIU Xiao-Yang*

State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China

Received:2010-04-08 Online:2010-11-10 Published:2010-11-10
Contact: LIU Xiao-Yang. E-mail: liuxy@jlu.edu.cn
Supported by:
国家自然科学基金(批准号: 20471022, 40673051和20121103)资助.

Abstract

Abstract: Diamond was synthesized by the reaction of potassium and sodium carbonate at 2 GPa and 500 ℃ for 18 h. The final product was characterized by powder X-ray diffraction and Raman spectroscopy, which confirmed the existence of micrometer-sized diamond. A probable reaction mechanism was discussed that Na2CO3 reacted with Pt and K under high pressure and high temperature to generate CO2 which reacted with K to produce diamond. The results show that diamond can be obtained under mild conditions of pressure and temperature.

Key words: Diamond, Synthesis, High pressure, Sodium carbonate

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JIAO Xiao-Peng, LI Ben-Xian, WANG Ran, YANG Bin, LU Feng-Guo, ZHAO Xu-Dong, LIU Xiao-Yang*. Synthesis of Diamond with Potassium and Sodium Carbonate Under High Pressure[J]. Chem. J. Chinese Universities, 2010, 31(11): 2127.

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Synthesis of Diamond with Potassium and Sodium Carbonate Under High Pressure

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