Silver particles tailoring of shapes and sizes

被引:44
作者
Widoniak, J [1 ]
Eiden-Assmann, S [1 ]
Maret, G [1 ]
机构
[1] Univ Konstanz, Fachbereich Phys, D-78457 Constance, Germany
关键词
silver particles; stabilising agent; reducing agent; control of size; control of shape;
D O I
10.1016/j.colsurfa.2005.09.004
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
Dispersions of colloidal silver have been prepared by the reduction of silver nitrate, with different reductants in the presence of various stabilising agents. Aging these dispersions at room temperature for 2 h yielded particles with average sizes ranging from 1 nm up to 6 mu m and with various shapes like spheres, plates, needles or leafs. Reducing and stabilising agents were found to control the final particle sizes and shapes. The diversity of morphologies of the silver particles were studied by using electron microscopy. Thermogravimetry, powder X-ray diffraction (XRD) and UV/VIS spectroscopy were carried out for further characterisation. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:340 / 344
页数:5
相关论文
共 17 条
[1]   Preparation and characterization of nanoscale silver colloids by two novel synthetic routes [J].
Bell, WC ;
Myrick, ML .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2001, 242 (02) :300-305
[2]  
Bohren CF., 1998, ABSORPTION SCATTERIN
[3]   Crystal design of calcium carbonate microparticles using double-hydrophilic block copolymers [J].
Colfen, H ;
Antonietti, M .
LANGMUIR, 1998, 14 (03) :582-589
[4]   Synthesis and characterization of porous and nonporous monodisperse colloidal TiO2 particles [J].
Eiden-Assmann, S ;
Widoniak, J ;
Maret, G .
CHEMISTRY OF MATERIALS, 2004, 16 (01) :6-11
[5]   Nanostructuring of solids with amphiphilic polymers [J].
Göltner, C ;
Cölfen, H ;
Antonietti, M .
CHEMIE IN UNSERER ZEIT, 1999, 33 (04) :200-205
[6]   Preparation of polychrome silver nanoparticles in different solvents [J].
He, R ;
Qian, XF ;
Yin, J ;
Zhu, ZK .
JOURNAL OF MATERIALS CHEMISTRY, 2002, 12 (12) :3783-3786
[7]   THE CHARACTERIZATION OF AG SOLS BY ELECTRON-MICROSCOPY, OPTICAL-ABSORPTION, AND ELECTROPHORESIS [J].
HEARD, SM ;
GRIESER, F ;
BARRACLOUGH, CG ;
SANDERS, JV .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1983, 93 (02) :545-555
[8]   Colloidal silver nanoparticles:: Photochemical preparation and interaction with O2, CCl4, and some metal ions [J].
Henglein, A .
CHEMISTRY OF MATERIALS, 1998, 10 (01) :444-450
[9]   PHYSICOCHEMICAL PROPERTIES OF SMALL METAL PARTICLES IN SOLUTION - MICROELECTRODE REACTIONS, CHEMISORPTION, COMPOSITE METAL PARTICLES, AND THE ATOM-TO-METAL TRANSITION [J].
HENGLEIN, A .
JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (21) :5457-5471
[10]   Synthesis of barium sulfate nanoparticles and nanofilaments in reverse micelles and microemulsions [J].
Hopwood, JD ;
Mann, S .
CHEMISTRY OF MATERIALS, 1997, 9 (08) :1819-1828