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3722292 
Journal Article 
Cr-hollandite: Breaking tradition with todorokite-type manganese oxides 
Ching, S; Franklin, JP; Spencer, CM 
2013 
1 
Polyhedron
ISSN: 02775387 
Elsevier Ltd 
58 
53-59 
English 
WOS:000321724500009 
The synthesis of a tunneled hollandite-type manganese oxide with interstitial and framework Cr3+ is described. This unique material is prepared from a layered buserite precursor under conditions previously believed to only yield todorokite-type manganese oxides with larger tunnels. The influence of Cr3+ in promoting the hollandite structure has been investigated by selectively placing the cation either in interstitial or framework sites. The use of framework Cr3+ in combination with other interstitial cations generates related hollandite and todorokite derivatives. Catalytic oxidation reactions with benzyl alcohol and carbon monoxide have also been examined. (C) 2012 Elsevier Ltd. All rights reserved. 
Manganese oxide; Chromium hollandite; Hydrothermal synthesis