Comparison of Catalytic Performance of Mn3O4-loaded Two-dimensional and Tree-dimensional Msoporous Carbon Mterials in Znc-air Bttery

Chem. J. Chinese Universities

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Comparison of Catalytic Performance of Mn₃O₄-loaded Two-dimensional and Tree-dimensional Msoporous Carbon Mterials in Znc-air Bttery

LI Feng, LIU Hai-Jing, WANG Yong-Gang, LI Hui-Qiao, XIA Yong-Yao*

Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China

Received:2007-04-28 Revised:1900-01-01 Online:2007-11-10 Published:2007-11-10
Contact: XIA Yong-Yao

Abstract

Abstract: Mn₃O₄ nano-particles were loaded on the surface of different carbon materials by the wet-penetration method, and the electrocatalytic performance of these composite materials were evaluated as cathode in zinc-air battery. It was found that the mesoporous carbon (CMK-3) with three-dimensional ordered structure exhibits the better catalytic performance than that of two-dimensional ordered mesoporous carbon (OMC) by charging/discharging and cyclic voltammograms test. The images of TEM indicate that Mn₃O₄ nano-particles were all loaded on the outer-surface of the carbon materials. In particular, the unique structure of the Mn₃O₄/CMK-3 composite can provide both effective gas diffusion path and sufficient effective three-phase interface area, thus resulting in its high electrocatalytic activity for oxygen reduction.

Key words: Oxygen reduction, Mesoporous carbon, Zinc-air battery, Electrocatalysis

CLC Number:

O646

TrendMD:

LI Feng, LIU Hai-Jing, WANG Yong-Gang, LI Hui-Qiao, XIA Yong-Yao*. Comparison of Catalytic Performance of Mn₃O₄-loaded Two-dimensional and Tree-dimensional Msoporous Carbon Mterials in Znc-air Bttery[J]. Chem. J. Chinese Universities, doi: .

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Comparison of Catalytic Performance of Mn₃O₄-loaded Two-dimensional and Tree-dimensional Msoporous Carbon Mterials in Znc-air Bttery

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