Paper Title:
Microwave-Assisted Synthesis of MWO4 and MMoO4 (M = Ca, Ni) Nano-Powders Using Citrate Complex Precursor
  Abstract

Nano-sized MWO4 and MMoO4 (M = Ca, Ni) powders, which have scheelite and wolframite type structure, were successfully synthesized at low temperatures by a modified citrate complex method assisted by microwave irradiation. The citrate complex precursors were heattreated at temperatures from 300 to 600 °C for 3 h. Crystallization of the MWO4 and MMoO4 precursors was detected at 400 °C and completed at a temperature of 500 °C. Most of the MWO4 and MMoO4 powders heat-treated between 300 and 600 °C showed primarily spherical and homogeneous morphology. The average crystallite sizes of MWO4 (M = Ca, Ni) were between 22 and 39 nm, and those for MMoO4 (M = Ca, Ni) were between 19 and 35 nm respectively, showing an ordinary tendency to grow with temperature.

  Info
Periodical
Key Engineering Materials (Volumes 317-318)
Edited by
T. Ohji, T. Sekino and K. Niihara
Pages
223-226
DOI
10.4028/www.scientific.net/KEM.317-318.223
Citation
J. H. Ryu, J. W. Yoon, C. S. Lim, K. B. Shim, "Microwave-Assisted Synthesis of MWO4 and MMoO4 (M = Ca, Ni) Nano-Powders Using Citrate Complex Precursor", Key Engineering Materials, Vols. 317-318, pp. 223-226, 2006
Online since
August 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: M. Zarzecka-Napierała, Mirosław M. Bućko, J. Brzezińska-Miecznik, Krzysztof Haberko
Abstract:Two techniques were applied to prepare single phase YAG powder: i) citrate process based on complexing properties of citric acid with...
231
Authors: Katarina Djuriš, G. Branković, Z. Branković, Slavko Bernik, M. Počuča, D. Poleti, B. Antić
Abstract:In this work pure and doped LMO were prepared using modified Pechini method from lanthanum and manganese citrates. Lanthanum citrate was...
237
Authors: Teobaldo Mariño Otero, Yodalgis Mosqueda Laffita, Carlos Ricardo Milian Pila, Eduardo Pérez Cappe
Abstract:In this work, the synthesis of Li3xLa2/3-xTiO3 oxide is studied by thermal decomposition of citrate precursor at very low temperature which...
105
Authors: Da Hui Wang, Ji Hong Xia, Sha Zhang, Yuan Xia
Chapter 9: New Energy Materials
Abstract:The nano precursors of La-Mg hydrogen storage alloy have been prepared using citric acid, lanthanum nitrate and magnesium nitrate by so-gel...
1496