Room temperature synthesis and high temperature frictional study of silver vanadate nanorods

Nanotechnology
D P SinghS M Aouadi

Abstract

We report the room temperature (RT) synthesis of silver vanadate nanorods (consisting of mainly beta-AgV O(3)) by a simple wet chemical route and their frictional study at high temperatures (HT). The sudden mixing of ammonium vanadate with silver nitrate solution under constant magnetic stirring resulted in a pale yellow coloured precipitate. Structural/microstructural characterization of the precipitate through x-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) revealed the high yield and homogeneous formation of silver vanadate nanorods. The length of the nanorods was 20-40 microm and the thickness 100-600 nm. The pH variation with respect to time was thoroughly studied to understand the formation mechanism of the silver vanadate nanorods. This synthesis process neither demands HT, surfactants nor long reaction time. The silver vanadate nanomaterial showed good lubrication behaviour at HT (700 degrees C) and the friction coefficient was between 0.2 and 0.3. HT-XRD revealed that AgV O(3) completely transformed into silver vanadium oxide (Ag(2)V(4)O(11)) and silver with an increase in temperature from RT to 700 degrees C.

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Citations

Apr 10, 2013·Journal of Colloid and Interface Science·Dave MaharajSumio Iijima
Oct 22, 2011·Journal of Colloid and Interface Science·Tao ChenShuit-Tong Lee
Feb 24, 2015·Scientific Reports·Dave Maharaj, Bharat Bhushan
Mar 16, 2017·ACS Applied Materials & Interfaces·Regiane Cristina de OliveiraElson Longo
Jan 13, 2018·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Ana Paula de Melo MonteiroOswaldo Luiz Alves

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