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Issue 2, 1999
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Manganese oxide porous crystals


This article reviews the structure, synthesis, host-guest reaction in aqueous phase, and ion-sieve and molecular-sieve properties of porous manganese oxide crystals. Tunnel and layered manganese oxides constitute a large family of porous materials having pore size from ultramicropores to mesopores. The manganese oxide crystals consist of MnO 6 octahedral units shared by corners and/or edges. They can be prepared by using various metal ions or organic surfactants as templates. The templates are extracted/inserted topotactically from/into the tunnels or interlayer spaces of the manganese oxides by two different mechanisms: redox-type and ion-exchange-type. These manganese oxides show excellent ion-sieve and molecular-sieve properties for the adsorptions of cations or organic molecules. The adsorptive selectivities are dependent on their structures.

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Article type: Paper
DOI: 10.1039/A805369C
Citation: J. Mater. Chem., 1999,9, 319-333
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    Manganese oxide porous crystals

    Q. Feng, H. Kanoh and K. Ooi, J. Mater. Chem., 1999, 9, 319
    DOI: 10.1039/A805369C

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