Preparation of Au colloids by polyol process using NaHCO3 as a buffering agent

被引：24

作者：

Lee, Young-ho ^{[1
]}

Kim, Dae-wook ^{[1
]}

Shin, Seung-il ^{[1
]}

Oh, Seong-geun ^{[1
]}

机构：

[1] Hanyang Univ, Dept Chem Engn, Seoul 133791, South Korea

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2006年 / 100卷 / 01期

关键词：

gold; nanoparticles; polyol; sodium bicarbonate; PVP;

D O I：

10.1016/j.matchemphys.2005.12.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An nanoparticles were synthesized by polyol process with sodium bicarbonate (NaHCO3) as a pH-buffering agent. The introduction of NaHCO3 to polyol process made it possible to lower the reaction temperature and shorten the reduction time. In this study, the effects of the NaHCO3/Au weight ratios and the PVP concentrations on the reduction rate of AlCl4- and the particle size of An nanoparticles were investigated. The NaHCO3/Au weight ratio was varied from 0.2 to 10. The reduction rate of AuCl4- was observed by the speeds of the color changes of the mixtures. UV-vis spectra and electron microscopic images indicated that the size of An nanoparticles was determined by the NaHCO3/Au weight ratios and the PVP concentrations. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：85 / 91

页数：7

共 29 条

[1] Synthesis of monodisperse Au, Pt, Pd, Ru and Ir nanoparticles in ethylene glycol [J].

Bonet, F ;

Delmas, V ;

Grugeon, S ;

Urbina, RH ;

Silvert, PY ;

Tekaia-Elhsissen, K .

NANOSTRUCTURED MATERIALS, 1999, 11 (08) :1277-1284

[2] Size-controlled synthesis of thiol-derivatized gold clusters [J].

Carotenuto, G ;

Nicolais, L .

JOURNAL OF MATERIALS CHEMISTRY, 2003, 13 (05) :1038-1041

[3] Nanoelectromechanical systems [J].

Craighead, HG .

SCIENCE, 2000, 290 (5496) :1532-1535

[4] ULTRAVIOLET VISIBLE ABSORPTION-SPECTRA OF THE COLLOIDAL METALLIC ELEMENTS [J].

CREIGHTON, JA ;

EADON, DG .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1991, 87 (24) :3881-3891

[5] FORMATION OF A POLYMER-PROTECTED PLATINUM SOL - A NEW UNDERSTANDING OF THE PARAMETERS CONTROLLING MORPHOLOGY [J].

DUFF, DG ;

EDWARDS, PP ;

JOHNSON, BFG .

JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (43) :15934-15944

[6] PREPARATION AND CHARACTERIZATION OF BIMETALLIC PD-CU COLLOIDS BY THERMAL-DECOMPOSITION OF THEIR ACETATE COMPOUNDS IN ORGANIC-SOLVENTS [J].

ESUMI, K ;

TANO, T ;

TORIGOE, K ;

MEGURO, K .

CHEMISTRY OF MATERIALS, 1990, 2 (05) :564-567

[7]

Fiévet F, 2000, SURF SCI SERIES, V92, P460

[8]

HENGLEIN A, 1985, MODERN TRENDS COLLOI, P126

[9] PREPARATION OF COLLOIDAL RHODIUM IN POLYVINYL-ALCOHOL) BY REDUCTION WITH METHANOL [J].

HIRAI, H ;

NAKAO, Y ;

TOSHIMA, N .

JOURNAL OF MACROMOLECULAR SCIENCE-CHEMISTRY, 1978, A12 (08) :1117-1141

[10] Large-scale synthesis of silver nanocubes: The role of HCl in promoting cube perfection and monodispersity [J].

Im, SH ;

Lee, YT ;

Wiley, B ;

Xia, YN .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (14) :2154-2157

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