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Chemical Synthesis of Crystalline, Pure or Mn-doped ZnGa2O4 Powders at 90 °C

Published online by Cambridge University Press:  31 January 2011

A. Cuneyt Tas ,
Peter J. Majewski  and
Fritz Aldinger
A. Cuneyt Tas
Affiliation:
Merck Biomaterial GmbH, Frankfurterstrasse 250, Bldg. F129/218, D-64271 Darmstadt, Germany
Peter J. Majewski
Affiliation:
Max-Planck-Institut fuer Metallforschung, Pulvermetallurgisches Lab., D-70569 Stuttgart, Germany
Fritz Aldinger
Affiliation:
Max-Planck-Institut fuer Metallforschung, Pulvermetallurgisches Lab., D-70569 Stuttgart, Germany
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Abstract

Crystalline, pure or Mn-doped ZnGa2O4 powders have been prepared in situ in urea (with or without enzyme urease)-containing Zn and Ga nitrate (and Mn nitrate) solutions by simply holding those for 24–48 h, at 90 °C, in screw-capped glass bottles in a constant-temperature laboratory oven. Single-phase pure or Mn-doped zinc gallate powders synthesized with the spinel crystal structure had an average particle size around 15 to 18 nm. Powders were characterized by x-ray diffraction, scanning electron microscopy, energy-dispersive x-ray spectroscopy, inductively-coupled plasma atomic emission spectroscopy, simultaneous thermogravimetry and differential thermal analysis, Fourier-transformed infrared spectroscopy, and carbon and nitrogen analyses. Calcination behavior of the as-filtered powders was later studied in an air atmosphere over the temperature range of 90 to 1200 °C.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 6 , June 2002 , pp. 1425 - 1433
Copyright
Copyright © Materials Research Society 2002

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