Issue 4, 1993

Citrate gel processing of the perovskite lanthanide chromites

Abstract

Chemically pure and stoichiometric lanthanide chromites, LnCrO3, where Ln = La, Pr, Nd, Sm, Gd, Dy, Ho, Yb, Lu and YCrO3 have been prepared by the calcination of the corresponding lanthanide bis(citrato)chromium {Ln[Cr(C6H5O7)2·nH2O} complexes at relatively low temperatures. Formation of the chromites was confirmed by powder X-ray diffraction, infrared and electronic spectra. The citrate gel process is found to be highly economical, time-saving and appropriate for the large-scale production of these ceramic materials at low temperatures compared with other non-conventional methods.

Article information

Article type
Paper

J. Mater. Chem., 1993,3, 373-379

Citrate gel processing of the perovskite lanthanide chromites

P. S. Devi, J. Mater. Chem., 1993, 3, 373 DOI: 10.1039/JM9930300373

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