Kinetic study of chemical transformation in supercritical media of bis(hexafluoroacetylacetonate)copper (II) hydrate

被引：21

作者：

Garriga, R

Pessey, V

Weill, F

Chevalier, B

Etourneau, J

Cansell, F

机构：

[1] Univ Bordeaux 1, ICMCB, CNRS, UPR 9048, F-33608 Pessac, Bordeaux, France

[2] Univ Zaragoza, Dept Quim Organ & Quim Fis, Zaragoza 50009, Spain

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2001年 / 20卷 / 01期

关键词：

nanoparticles; supercritical fluid; acetylacetonate; copper; kinetics;

D O I：

10.1016/S0896-8446(01)00055-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Thermal decomposition of bis(hexafluoroacetylacetonate)copper (II) hydrate in CO2/ethanol supercritical mixture is a new route to obtain homogeneous submicronic spherical copper particles without carbon contamination. A kinetic study of thermally activated decomposition reaction at 473 It of both hydrated and anhydrous complex by Visible and UV spectroscopies is reported in this paper. It was found that. at 473 K, the decomposition rate constant of the hydrated complex (1.670 min(-1)) is one order of magnitude higher than the dehydration rate constant (0.14 min(-1)). (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：55 / 63

页数：9

共 25 条

[1] ACCELERATED-DEPOSITION RATE AND HIGH-QUALITY FILM COPPER CHEMICAL-VAPOR-DEPOSITION USING A WATER-VAPOR ADDITION TO A HYDROGEN AND CU(HFA)(2) REACTION SYSTEM [J].