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Chemical synthesis of \alpha-cobalt hydroxide

Rajamathi, Michael and Kamath, Vishnu P and Seshadri, Ram (2000) Chemical synthesis of \alpha-cobalt hydroxide. In: Materials Research Bulletin, 35 (2). pp. 271-278.

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Precipitation reactions using ammonia yield a novel cobalt hydroxide phase that is structurally and compositionally similar to \alpha-nickel hydroxide. The use of other synthetic methods yields the well-known $\beta-Co(OH)_2$. The slab composition, mode of anion inclusion, and thermal behavior of the hydroxides obtained by ammonia precipitation are similar to those of \alpha-nickel hydroxide; however, the materials are poorly ordered. A DIFFaX simulation of the powder X-ray diffraction patterns offers the best visual match with the observed patterns for a 50% stacking disorder and a disc radius between 100 and 1000 \AA.

Item Type: Journal Article
Publication: Materials Research Bulletin
Publisher: Elsevier
Additional Information: Copyright of this article belongs to Elsevier.
Keywords: Layered compounds;Chemical synthesis.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 25 Jul 2008
Last Modified: 19 Sep 2010 04:48
URI: http://eprints.iisc.ac.in/id/eprint/15244

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