Microemulsion Synthesis Strategies for ZrW2O8 Precursors

Çolak, Üner; Vural, İrem; Khazeni, Nasser; Mavis, Bora; Gündüz, Güngör

Paper Titles

Microstructural Tailoring of YAG and YAG-Containing Nanoceramics through Advanced Synthesis Routes, p.34
Ceramic Matrix Composites in the Alumina/YAG System, p.44
Solvothermal Synthesis of ITO Nanoparticles Precisely Controlled in Size and Shape, p.50
La_1.97Sr_0.03Zr₂O₇ Pyrochlore Powder for Advanced Energy Application, p.56
Microemulsion Synthesis Strategies for ZrW₂O₈ Precursors, p.61
Synthesis of Scandium Oxide Nanoparticles from Solution, p.70
Elaboration and Mechanical Characterization of Al₂O₃-ZrO₂-YAG Ultrafine Composites, p.76
Effects of Firing Temperature and Time on the Luminescency of Phosphors in Strontium Aluminate System Co-Doped by Eu₂O₃ and Dy₂O₃ and Prepared by Solid State Reaction Processing, p.82
Influences of Eu²⁺ and Dy³⁺ Contents on the Properties of Long Afterglow Strontium Aluminate Phosphors, p.88

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Paper Title:

Microemulsion Synthesis Strategies for ZrW₂O₈ Precursors

Periodical	Advances in Science and Technology (Volume 62)
Main Theme	12th INTERNATIONAL CERAMICS CONGRESS PART A
Edited by	Pietro VINCENZINI and Jean-François BAUMARD
Pages	61-69
DOI	10.4028/www.scientific.net/AST.62.61
Citation	İrem Vural et al., 2010, Advances in Science and Technology, 62, 61
Online since	October, 2010
Authors	İrem Vural, Nasser Khazeni, Bora Mavis, Güngör Gündüz, Üner Çolak
Keywords	Aging Time, Microemulsion, Tungstic Acid, Zirconium Tungstate
Price	US$ 28,-

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Abstract

A zirconium tungstate (ZrW2O8) precursor was synthesized by a novel sol-gel method with zirconium oxychloride and tungstic acid as the zirconium and tungsten sources, respectively. Heat treatment at 600oC for 10 hours was adequate to crystallize the precursor. Use of excess zirconium source and the concentration of hydrochloric acid were found to affect the phase purity and crystallization temperature of ZrW2O8. Sizes of particles obtained were in submicron range in the absence of a microemulsion system. On the other hand, using water/oleylamine/hexane reverse micelle microemulsion technique monodispersed particles with sizes between 10 to 100nm were obtained. Nanoparticles were then successfully dispersed in a solvent with a carrier polymer to produce ZrW2O8 nanofibers with electrospinning technique.