Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
Letter
Formation of Rectangular Plate-like α-MnOOH and Sheet-like γ-MnOOH by Slow Diffusion of Ammonia Vapor
Satoshi KajiyamaHiromu KumagaiTatsuya NishimuraTakashi Kato
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2013 Volume 42 Issue 4 Pages 341-343

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Abstract

The formation of rectangular plate-like α-MnOOH and sheet-like γ-MnOOH crystals has been achieved under ambient conditions. A gradual crystallization of manganese compounds with the diffusion of ammonia vapor inhibits random oxidization of divalent manganese ions and the formation of aggregates of Mn3O4 crystals. The simple method using ammonia vapor is applicable to the development of manganese-based compounds with ordered structures.

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© 2013 The Chemical Society of Japan
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