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Issue 23, 2012
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Synthesis of mesoporous silica nanobamboo with highly dispersed tungsten carbide nanoparticles

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Abstract

By controlling the interaction between cationic surfactant micelles and ammonium metatungstate during the formation of mesoporous silica structure, highly dispersed tungsten carbide (WC) nanoparticles of 2.0 nm in diameter on mesoporous silica nanospheres were synthesized at lower concentration of ammonium metatungstate. With additional ammonium metatungstate, a novel mesoporous silica nanobamboo structure was formed with bimodal size-distributed WC nanoparticles, in which 2.0 nm WC was homogeneously distributed in nanobamboo's mesoporous silica wall and those with larger diameter (10.0–20.0 nm) were only formed on the nanobamboo's inner surface and at its internodes. The mesoporous silica nanobamboo also had a very high tensile strength due to its bamboo-like structure.

Graphical abstract: Synthesis of mesoporous silica nanobamboo with highly dispersed tungsten carbide nanoparticles

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Publication details

The article was received on 02 Feb 2012, accepted on 09 Apr 2012 and first published on 11 Apr 2012


Article type: Communication
DOI: 10.1039/C2DT30248A
Citation: Dalton Trans., 2012,41, 6914-6918
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    Synthesis of mesoporous silica nanobamboo with highly dispersed tungsten carbide nanoparticles

    Y. Huang, F. Deng, C. Ni, J. G. Chen and D. G. Vlachos, Dalton Trans., 2012, 41, 6914
    DOI: 10.1039/C2DT30248A

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