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Science 25 November 1994:
Vol. 266. no. 5189, pp. 1357 - 1359
DOI: 10.1126/science.266.5189.1357
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Articles

Nickel Oxide Interstratified agr-Zirconium Phosphate, a Composite Exhibiting Ferromagnetic Behavior

Boris Shpeizer 1, Damodara M. Poojary 1, Kyungsoo Ahn 1, Charles E. Runyan Jr. 1, and Abraham Clearfield 1

1 Department of Chemistry, Texas A&M University, College Station, TX 77843, USA

As part of an ongoing research program to synthesize novel pillared layered materials, nickel and cobalt hydroxyacetates were inserted between the layers of amine intercalates of agr-zirconium phosphate. The structure of the resultant nickel composite, derived from x-ray powder data, was found to consist of a three-tiered layer of nickel atoms bridged by hydroxo and acetato groups. Heating to 420°C converted the hydroxyacetate layers to oxide and imparted ordered magnetic domains to the composite. The phosphate layers appear to act as a template directing the growth of the inserted layers in this class of composite materials.

Submitted on May 9, 1994
Accepted on September 22, 1994

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Science. ISSN 0036-8075 (print), 1095-9203 (online)