2008 | OriginalPaper | Buchkapitel
Birnessite-type Manganese Oxide by Redox Precipitation
verfasst von : Q. Feng, Z. -H. Liu, K. Ooi
Erschienen in: Materials Syntheses
Verlag: Springer Vienna
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Preparation of a birnessite-type manganese oxide, with a layered structure, by redox and hydrothermal reactions is described. A poorly crystalline birnessite is prepared by reacting an aqueous Mn(NO
3
)
2
solution with a NaOH / H
2
O
2
solution at room temperature. A highly crystalline birnessite is obtained by hydrothermal treatment of the poorly crystalline birnessite in a NaOH solution.