6533b837fe1ef96bd12a26af
RESEARCH PRODUCT
Stable anchoring of dispersed gold nanoparticles on hierarchic porous silica-based materials
Tomás GarcíaAurelio BeltránJamal El HaskouriDaniel BeltránMónica Pérez-caberoBenjamín SolsonaIsabel VázquezAna DejozJ. ÁLvarez-rodríguezPedro Amoróssubject
Materials scienceNanocompositeColloidal goldMaterials ChemistryNucleationNanotechnologyThermal stabilityGeneral ChemistryMesoporous silicaMesoporous materialPorosityMOX fueldescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-01-01 | Journal of Materials Chemistry |