Synthesis of nanocrystalline CrN from Cr[OC(NH2)2]6Cl3 coordination compound

被引：22
作者：
Qiu, Y [1 ]
Gao, L [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2003年 / 38卷 / 9-10期
关键词：
nitrides; chemical synthesis; thermogravimetric analysis; X-ray diffraction; electron microscopy;
D O I：
10.1016/S0025-5408(03)00151-X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nanocrystalline chromium nitride (CrN) particles were prepared by the pyrolysis of Cr[OC(NH2)(2)](6)Cl-3 coordination compound in ammonia gas. The compound was characterized by infrared spectrum analysis and thermogravimetry-differential scanning calorimetry (TG-DSC). X-ray diffraction (XRD) and transmission electron microscopy (TEM) were used to investigate the phase and morphology of the CrN powders. The CrN particle size obtained at 600 degreesC was as small as 7 nm. The influence of reaction temperature and time on particle sizes was also studied. The formation of CrN nanoparticles was proposed following nucleation and growth mechanism on the basis of the experimental results. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1551 / 1557
页数：7
相关论文
共 19 条
[1]  
Aizawa T, 2002, J AM CERAM SOC, V85, P81, DOI 10.1111/j.1151-2916.2002.tb00043.x
[2]   CrN single-crystal growth using Cr-Ga-Na ternary melt [J].
Aoki, M ;
Yamane, H ;
Shimada, M ;
Kajiwara, T .
JOURNAL OF CRYSTAL GROWTH, 2002, 246 (1-2) :133-138
[3]   Thermal decomposition study of the coordination compound [Fe(urea)6](NO3)3 [J].
Carp, O ;
Patron, L ;
Diamandescu, L ;
Reller, A .
THERMOCHIMICA ACTA, 2002, 390 (1-2) :169-177
[4]   On the possibility of a two-state magnetic structure for nanocrystalline chromium [J].
Fitzsimmons, MR ;
Eastman, JA ;
Robinson, RA ;
Lynn, JW .
NANOSTRUCTURED MATERIALS, 1996, 7 (1-2) :179-184
[5]  
Hirota K, 2001, J AM CERAM SOC, V84, P2120, DOI 10.1111/j.1151-2916.2001.tb00969.x
[6]   Poly(imidogallane): Synthesis of a crystalline 2-D network solid and its pyrolysis to form nanocrystalline gallium nitride in supercritical ammonia [J].
Jegier, JA ;
McKernan, S ;
Gladfelter, WL .
CHEMISTRY OF MATERIALS, 1998, 10 (08) :2041-+
[7]   Low-temperature synthesis and photoluminescence of AlN [J].
Lan, YC ;
Chen, XL ;
Cao, YG ;
Xu, YP ;
Xun, LD ;
Xu, T ;
Liang, JK .
JOURNAL OF CRYSTAL GROWTH, 1999, 207 (03) :247-250
[8]   Study on the mechanism of aluminum nitride synthesis by chemical vapor deposition [J].
Li, CZ ;
Hu, LM ;
Yuan, WK ;
Chen, MH .
MATERIALS CHEMISTRY AND PHYSICS, 1997, 47 (2-3) :273-278
[9]  
Li YG, 2002, J AM CERAM SOC, V85, P1294
[10]   Phase changes of CrN films annealed at high temperature under controlled atmosphere [J].
Lu, FH ;
Chen, HY .
THIN SOLID FILMS, 2001, 398 :368-373
12