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Examination of YBa2Cu3O6+x precursor sol using 13C NMR Spectroscopy and Quasielastic Laser Light Scattering

Published online by Cambridge University Press:  25 February 2011

S. Kramer ,
G. Moore ,
G. Kordas ,
P. A. Keifer  and
C. T.G. Knight
S. Kramer
Affiliation:
Department of Materials Science and Engineering and Materials Research Laboratory, University of Illinois at Urbana-Champaign, 105 S. Goodwin, Urbana, IL, 61801
G. Moore
Affiliation:
Department of Materials Science and Engineering and Materials Research Laboratory, University of Illinois at Urbana-Champaign, 105 S. Goodwin, Urbana, IL, 61801
G. Kordas
Affiliation:
Department of Materials Science and Engineering and Materials Research Laboratory, University of Illinois at Urbana-Champaign, 105 S. Goodwin, Urbana, IL, 61801
P. A. Keifer
Affiliation:
Department of Chemistry, University of Illinois at Urbana-Champaign, 1209 W. California, Urbana, IL, 61801
C. T.G. Knight
Affiliation:
Department of Chemistry, University of Illinois at Urbana-Champaign, 1209 W. California, Urbana, IL, 61801
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Abstract

The structural evolution of YBa2Cu3O6+x precursor sol was investigated using 13C NMR and quasielastic light scattering. A polydisperse colloidal suspension of yttrium, barium and copper alkoxides was characterized as hydrolysis and complexation reactions occurred. Light scattering data showed that the average particle size of a copper(II) alkoxide suspension decreased by a factor of 5 (1100 nm to 220nm) with the addition of the yttrium and barium alkoxides over a period of 24 hours. The acquired particle size data correlated well with 13C NMR spectra, which showed initial peak broadening and the copper complexing to the yttrium and barium as a function of hydrolysis time.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 121: Symposium H – Better Ceramics Through Chemistry III , 1988 , 643
Copyright
Copyright © Materials Research Society 1988

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References

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