Formation of Metal Selenide and Metal-Selenium Nanoparticles using Distinct Reactivity between Selenium and Noble Metals

被引：13

作者：

Park, Se Ho ^{[1
]}

Choi, Ji Yong ^{[2
]}

Lee, Young Hwan ^{[1
]}

Park, Joon T. ^{[1
]}

Song, Hyunjoon ^{[2
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Chem, Taejon 305701, South Korea

[2] Korea Adv Inst Sci & Technol, Inst Basic Sci, Dept Chem, Ctr Nanomat & Chem React, Taejon 305701, South Korea

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2015年 / 10卷 / 07期

基金：

新加坡国家研究基金会;

关键词：

ion exchange; nanoparticles; noble metals; selenium; CATION-EXCHANGE; CRYSTALLINE SELENIUM; SPHERICAL COLLOIDS; UNIFORM NANOWIRES; SE; ROUTE; SIZE; TRANSFORMATION; SOLUBILITY; SALTS;

D O I：

10.1002/asia.201500191

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Small Se nanoparticles with a diameter of approximate to 20nm were generated by the reduction of selenium chloride with NaBH4 at -10 degrees C. The reaction with Ag at 60 degrees C yielded stable Ag2Se nanoparticles, which subsequently were transformed into M-Se nanoparticles (M=Cd, Zn, Pb) through cation exchange reactions with corresponding ions. The reaction with Pt formed Pt layers that were evenly coated on the surface of the Se nanoparticles, and the dissolution of the Se cores with hydrazine generated uniform Pt hollow nanoparticles. The reaction with Au generated tiny Au clusters on the Se surface, and eventually formed acorn-shaped Au-Se nanoparticles through heat treatment. These results indicate that small Se nanoparticles with diameters of approximate to 20nm can be used as a versatile platform for the synthesis of metal selenide and metal-selenium hybrid nanoparticles with complex structures.

引用

页码：1452 / 1456

页数：5

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