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Preparation Of Copper And Copper-Barium-Yttrium Sols From Metal 2-(2-Ethoxyethoxy)Ethoxides and Conversion Of Copper-Barium-Yttrium Alkoxide Precursors to Ba2YCu3O7−δ.

Published online by Cambridge University Press:  28 February 2011

Mary Rose Scozzafava ,
Wendell E. Rhine  and
Michael J. Cima
Mary Rose Scozzafava
Affiliation:
Ceramics Processing Research Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139
Wendell E. Rhine
Affiliation:
Ceramics Processing Research Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139
Michael J. Cima
Affiliation:
Ceramics Processing Research Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139
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Abstract

The hydrolysis of copper 2–(2-ethoxyethoxy)ethoxide solutions and barium-yttrium copper 2–(2-ethoxyethoxy)ethoxide solutions were investigated. Copper sols with particle sizesof 3–10 nm have been prepared from THF solutions. Sols from barium-yttrium-copper alkoxides were also prepared in THF with particle sizes of 4–10 nm as determined by transmission electron microscopy (TEM) and 50–80 nm as determined by photon correlation. Compositional analysis showed that the sols had a similar composition to the parent solution. Choice of atmosphere and solvent system played an important role in the progress of the hydrolysis reaction. Powders obtained from barium-yttrium-copper solutions can be converted to Ba2YCu3O7−δ.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 180: Symposium A – Better Ceramics Through Chemistry IV , 1990 , 697
Copyright
Copyright © Materials Research Society 1990

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References

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