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Yu Li, Haiyan Tan, Xiao-Yu Yang, Bart Goris, Jo Verbeeck, Sara Bals, Pierre Colson, Rudi Cloots, Gustaaf Van Tendeloo and Bao-Lian Su Nanoparticles: Well Shaped Mn3O4 Nano-octahedra with Anomalous Magnetic Behavior and Enhanced Photodecomposition Properties (Small 4/2011) Small 7

Version of Record online: 1 MAR 2011 | DOI: 10.1002/smll.201190011

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Uniform and well shaped Mn3O4 nano-octahedra synthesized with PEG200 using a simple hydrothermal method exhibit anomalous magnetic properties in regard to their Curie and blocking temperatures. These Mn3O4 nano-octahedra also show high performance in the photodecomposition of organic pollutants. The anomalous magnetic properties and superior photodecomposition activity of the Mn3O4 are thought to be related to their special shape: the vertical axis of the [001] plane and the abundantly exposed {101} facets at the surfaces. They are promising magnetic materials and as starting materials in the preparation of soft magnetic materials such as manganese ferrite for dioxymagnetic cores in transformers for power supplies, in the lithiation of Li-Mn-O electrode materials for rechargeable lithium batteries, and in a corrosion-inhibiting pigment for epoxy-polyamide- and epoxy-ester-based primers and top coatings. For more information, please read the Full Paper “Well Shaped Mn3O4 Nano-octahedra with Anomalous Magnetic Behavior and Enhanced Photodecomposition Properties” by B.-L. Su and co-workers, beginning on page 474.

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