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Issue 36, 2012
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Porous carbon-modified MnO disks prepared by a microwave-polyol process and their superior lithium-ion storage properties

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Abstract

A rapid and economical route based on an efficient microwave-polyol process has been developed to synthesize a disk-like Mn-complex precursor. It can be topotactically converted into porous C-modified MnO disks by post-heating treatment. The as-formed porous C–MnO disks with an average thickness of ∼50 nm and diameters up to 3 μm possess a large specific surface area of 75.3 m2 g−1. Interestingly, each C–MnO disk has a single-crystal-like nature, which is built up by the assembly of carbon-modified MnO nanocrystals of ∼12 nm through the same crystallographic orientation. The as-synthesized C–MnO nanocomposite exhibits high capacity and excellent cycling stability when used as an anode material for lithium-ion batteries, which can be attributed to the unique assembled nanoarchitecture involving three-dimensionally interconnected nanopores and carbon modification as well as small particle sizes of MnO nanocrystals. This work provides a simple and efficient pathway to self-organized porous C–MnO nanohybrids without using any templates or seeds.

Graphical abstract: Porous carbon-modified MnO disks prepared by a microwave-polyol process and their superior lithium-ion storage properties

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Publication details

The article was received on 01 Apr 2012, accepted on 01 Aug 2012, published on 03 Aug 2012 and first published online on 03 Aug 2012


Article type: Paper
DOI: 10.1039/C2JM32036C
Citation: J. Mater. Chem., 2012,22, 19190-19195
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    Porous carbon-modified MnO disks prepared by a microwave-polyol process and their superior lithium-ion storage properties

    Y. Sun, X. Hu, W. Luo and Y. Huang, J. Mater. Chem., 2012, 22, 19190
    DOI: 10.1039/C2JM32036C

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