PREPARATION OF SILVER NANOPARTICLES IN THE ABSENCE OF POLYMER STABILIZERS

被引：7

作者：

Sifontes, Angela B. ^{[1
]}

Melo, Luis ^{[1
]}

Maza, Carlos ^{[1
]}

Mendes, Juan J. ^{[1
]}

Mediavilla, Marta ^{[1
]}

Brito, Joaquin L. ^{[2
]}

Zoltan, Tamara ^{[2
]}

Albornoz, Alberto ^{[2
]}

机构：

[1] Cent Univ Venezuela, Fac Ingn, Caracas 1041A, Venezuela

[2] Inst Venezolano Invest Cient, Ctr Quim, Caracas 1020A, Venezuela

来源：

QUIMICA NOVA | 2010年 / 33卷 / 06期

关键词：

nanoparticles; polyol method; silver; ELECTROCHEMICAL SYNTHESIS; METAL NANOPARTICLES; CATALYTIC-ACTIVITY; OPTICAL-PROPERTIES; GOLD NANORODS; REDUCTION; SHAPE; SPECTROSCOPY; PALLADIUM; COLLOIDS;

D O I：

10.1590/S0100-40422010000600009

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

PREPARATION OF SILVER NANOPARTICLES IN THE ABSENCE OF POLYMER STABILIZERS. Silver nanoparticles (AgNPs) were prepared by means of the polyol method in the absence of stabilizing polymers. To accomplish this objective, AgNO3 was added to ethylene glycol in the presence of NaOH (1 mol.L-1). the suspension formed was irradiated with a microwave source for 60 seconds at a power of 465 watts. It was found that under these conditions AgNPs of sizes between 4-18 nm are formed. Also the results indicate that part of the ethylene glycol is oxidized to carbonyl compounds that reduce the Ag+. These organic compounds are adsorbed on the surfaces of AgNPs, forming a protective film that prevents their aggregation.

引用

页码：1266 / 1269

页数：4

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