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dc.contributor.authorSingh, D. P.en
dc.contributor.authorPolychronopoulou, K.en
dc.contributor.authorRebholz, Clausen
dc.contributor.authorAouadi, S. M.en
dc.creatorSingh, D. P.en
dc.creatorPolychronopoulou, K.en
dc.creatorRebholz, Clausen
dc.creatorAouadi, S. M.en
dc.description.abstractWe report the room temperature (RT) synthesis of silver vanadate nanorods (consisting of mainly β-AgVO3) 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 μm 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 °C) and the friction coefficient was between 0.2 and 0.3. HT-XRD revealed that AgVO3 completely transformed into silver vanadium oxide (Ag2V 4O11) and silver with an increase in temperature from RT to 700 °C. © 2010 IOP Publishing Ltd.en
dc.subjectSynthesis (chemical)en
dc.subjectSurface active agentsen
dc.subjectX ray diffractionen
dc.subjectFriction coefficientsen
dc.subjectHigh temperatureen
dc.subjectSilver oxidesen
dc.subjectSilver vanadatesen
dc.subjectVanadium compoundsen
dc.subjectVanadium oxidesen
dc.subjectRoom temperatureen
dc.subjectTransmission electron microscopyen
dc.subjectScanning electron microscopyen
dc.subjectAmmonium compoundsen
dc.subjectAmmonium vanadateen
dc.subjectFormation mechanismen
dc.subjectHigh yielden
dc.subjectMagnetic stirringen
dc.subjectpH variationen
dc.subjectReaction timeen
dc.subjectRoom temperature synthesisen
dc.subjectSilver nitrate solutionsen
dc.subjectSynthesis processen
dc.subjectWet chemical routeen
dc.titleRoom temperature synthesis and high temperature frictional study of silver vanadate nanorodsen
dc.description.volume21Πολυτεχνική Σχολή / Faculty of EngineeringΤμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering

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