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J Nanosci Nanotechnol. 2002 Oct;2(5):491-4.

Application of Ni:SiO2 nanocomposite to control the carbon deposition on the carbon dioxide reforming of methane.

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  • 1CMDMC-LIEC, Departamento de Química, UFSCar, Via Washington Luiz, Km 235, C.P. 676 CEP 13565-905, São Carlos, SP, Brazil.

Abstract

Stable Ni nanoparticles embedded in a mesoporous silica material were used as catalysts for the conversion of methane into synthesis gas. This catalyst has the singular properties of controlling the carbon deposition and deactivation of active sites. A comparative study of our nanocomposites with conventional catalysts showed that impregnation material presented a preferential encapsulation and growth of carbon nanotubes on the metal surface. The impregnated catalyst showed a higher tendency for carbon nanotube and whiskers formation.

PMID:
12908285
[PubMed - indexed for MEDLINE]
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