Synthesis of high purity tungsten nanoparticles from tungsten heavy alloy scrap by selective precipitation and reduction route

被引：23

作者：

Kamal, S. S. Kalyan ^{[1
]}

Sahoo, P. K. ^{[1
]}

Vimala, J. ^{[1
]}

Shanker, B. ^{[1
]}

Ghosal, P. ^{[1
]}

Durai, L. ^{[1
]}

机构：

[1] Def Met Res Lab, Hyderabad 500058, Andhra Pradesh, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 678卷

关键词：

Tungsten nanoparticles; Recycling of scrap; FTIR; TEM; TEMPERATURE; NANOPOWDER; BEHAVIOR;

D O I：

10.1016/j.jallcom.2016.03.303

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：

In this paper we report synthesis of tungsten nanoparticles of high purity >99.7 wt% from heavy alloy scrap using a novel chemical route of selective precipitation and reduction. The effect of Poly(vinylpyrrolidone) polymer on controlling the particle size is established through FTIR spectra and corroborated with TEM images, wherein the average size decreased form 210 to 45 nm with increasing PVP content from zero to 2 g under different experimental conditions. This process is economical as raw material is a scrap and the efficiency of the reaction is >95%. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：403 / 409

页数：7

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