Ordered Mesoporous Nanocrystalline Titanium-Carbide/Carbon Composites from In Situ Carbothermal Reduction

Authors

  • T. Yu,

    1. Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, Advanced Materials Laboratory, Fudan University, Shanghai 200433 (P.R. China)
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  • Y. H. Deng,

    1. Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, Advanced Materials Laboratory, Fudan University, Shanghai 200433 (P.R. China)
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  • L. Wang,

    1. Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, Advanced Materials Laboratory, Fudan University, Shanghai 200433 (P.R. China)
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  • R. L. Liu,

    1. Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, Advanced Materials Laboratory, Fudan University, Shanghai 200433 (P.R. China)
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  • L. J. Zhang,

    1. Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, Advanced Materials Laboratory, Fudan University, Shanghai 200433 (P.R. China)
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  • B. Tu,

    1. Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, Advanced Materials Laboratory, Fudan University, Shanghai 200433 (P.R. China)
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  • D. Y. Zhao

    1. Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers, Advanced Materials Laboratory, Fudan University, Shanghai 200433 (P.R. China)
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  • This work was supported by the NSF of China (20421303, 20373013, and 20521140450), the State Key Basic Research Program of the PRC (2006CB202502, 2006CB0N0302), the Shanghai Science & Technology Committee (06DJ14006, 055207078, 05DZ22313), Shanghai Nanotech Promotion Center (0652nm024), Shanghai Education Committee (02SG01), and the Program for New Century Excellent Talents in University (Grant NCET-04-03). We thank Dr. S. H. Xie for assistance with the characterization. Supporting Information is available online from Wiley InterScience or from the author.

Abstract

original image

Ordered mesoporous nanocrystalline titanium-carbide/carbon composites are synthesized by using a solvent-evaporation-induced self-assembly process combined with in situ carbothermal reduction (see figure). The composites comprise crystalline titanium carbides confined in a matrix of amorphous carbon pore walls. The nanocomposites possess a highly ordered 2D hexagonal mesostructure, large uniform pores, high surface areas and controllable titanium content. The TiC nanocrystals enhance the oxidation resistance of carbon frameworks.

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