Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 678, Issue -, Pages 403-409Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.03.303
Keywords
Tungsten nanoparticles; Recycling of scrap; FTIR; TEM
Categories
Funding
- Defence Research and Development Organization (DRDO), Ministry of Defence, Government of India
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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.
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