Carbon nitride prepared by solvothermal method

被引：69

作者：

Cao, CB ^{[1
]}

Lv, Q ^{[1
]}

Zhu, HS ^{[1
]}

机构：

[1] Beijing Inst Technol, Res Ctr Mat Sci, Beijing 100081, Peoples R China

来源：

基金：

中国国家自然科学基金;

关键词：

carbon nitride; high pressure crystal growth; surface structure; superhard materials;

D O I：

10.1016/S0925-9635(02)00309-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A solvothermal method has been successfully applied to prepare crystalline carbon nitride powder from 1,3,5-trichlorotriazine (C3N3Cl3) and lithium nitride (Li3N) in benzene at 300-400 degreesC and 5-7 MPa. The sample was brown and analyzed by X-ray powder diffraction, X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR). The results show that the powder mainly consists of alpha-C3N4, beta-C3N4 The experimental lattice constants Of alpha-C3N4 (a = 6.48 Angstrom, c = 4.72 Angstrom) and beta-C3N4 (a = 6.43 Angstrom, c = 2.47 Angstrom) match the latest ab initio calculations (a = 6.47 Angstrom, c = 4.72 Angstrom for alpha-C3N4, a = 6.40 Angstrom, c = 2.40 Angstrom for beta-C3N4) quite well. The relative nitrogen-to-carbon composition ratio is 0.76. Only C-N and C=N bonds were demonstrated by XPS and FTIR. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：1070 / 1074

页数：5

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