Issue 23, 2012

Synthesis of mesoporous silica nanobamboo with highly dispersed tungsten carbide nanoparticles

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

Supplementary files

Article information

Article type
Communication
Submitted
02 Feb 2012
Accepted
09 Apr 2012
First published
11 Apr 2012

Dalton Trans., 2012,41, 6914-6918

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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