# 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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## Abstract

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 Copyright of this article belongs to Elsevier. Layered compounds;Chemical synthesis. Division of Chemical Sciences > Solid State & Structural Chemistry Unit 25 Jul 2008 19 Sep 2010 04:48 http://eprints.iisc.ernet.in/id/eprint/15244