Issue 32, 2010

Stable anchoring of dispersed gold nanoparticles on hierarchic porous silica-based materials

Abstract

The nanometric organization of MOx (M = Co, Zn, Ni) domains partially embedded inside the mesoporous silica walls but accessible to the pore voids, which is achieved through a simple one-pot surfactant-assisted procedure, define optimal anchors for the nucleation and growth of gold nanoparticles, which in turn favours an exceptional thermal stability for the final Au-supported materials. As silica support we have selected a UVM-7 silica having a highly accessible architecture defined by two hierarchic pore systems. The combination of nanometric pore length, tortuous mesopores and MOx inorganic anchors favours the stability of the final Au/CoOx-UVM-7 nanocomposites.

Graphical abstract: Stable anchoring of dispersed gold nanoparticles on hierarchic porous silica-based materials

Supplementary files

Article information

Article type
Paper
Submitted
15 Feb 2010
Accepted
10 May 2010
First published
30 Jun 2010

J. Mater. Chem., 2010,20, 6780-6788

Stable anchoring of dispersed gold nanoparticles on hierarchic porous silica-based materials

M. Pérez-Cabero, J. El Haskouri, B. Solsona, I. Vázquez, A. Dejoz, T. García, J. Álvarez-Rodríguez, A. Beltrán, D. Beltrán and P. Amorós, J. Mater. Chem., 2010, 20, 6780 DOI: 10.1039/C0JM00421A

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