CJCU

Chem. J. Chinese Universities ›› 2006, Vol. 27 ›› Issue (2): 319.

• Contents • Previous Articles     Next Articles

Electrochemical Synthesis of Diamond and Diamond-like Material at  Ambient Temperature and Pressure

ZHANG Bo1,  QIU Ri1, ZHANG Juan2, ZHAO Xiao-Hui1, ZHANG Shu-Yong1   

  1. 1. School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China;
    2. School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan  750021, China
  • Received:2005-02-16 Online:2006-02-10 Published:2006-02-10
  • Contact: ZHANG Shu-Yong,E-mail: syzhang@sdu.edu.cn

PDF (PC)

Abstract:

The possibility of electrochemical synthesis of diamond from CCl4-Nacl-BMIM]BF4 system at ambient temperature and pressure was testified by using the linear sweeping voltammetry(LSV), X\|ray diffraction(XRD), and Raman spectroscopy. It was found by LSV that CCl4 could be directly reduced on Pt electrode without NaCl serving as electron medium. A substance with black color formed on Pt electrode during the potentiostatic electrolysis between -1.5 and 2.4 V vs. Ag/AgCl. The characteristic diffraction peaks of diamond  with d = 2.03, 1.23 and 1.07  could be observed in the XRD pattern of the product with another compound of unknown composition distinguished. In the Raman spectrum, the characteristic Raman shift of diamond at 1 332 cm-1 could be observed. Both XRD and Raman spectroscopy confirmed the presence of diamond or diamond\|like material in the product. This suggested that to synthesize diamond or diamond-like material from CCl4-[BMIM]BF4 system at ambient temperature and pressure is possible.     The formation mechanism of diamond or diamond-like material from CCl4 electrochemically was discussed.

Key words: Diamond; Electrochemical synthesis; Carbon tetrachloride; Ionic liquid

CLC Number: 

TrendMD: