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

N L Carreño; E R Leite; E Longo; P N Lisboa-Filho; A Valentini; L F Probst; W H Schreiner

doi:10.1166/153348802760394052

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

J Nanosci Nanotechnol. 2002 Oct;2(5):491-4. doi: 10.1166/153348802760394052.

Authors

N L Carreño¹, E R Leite, E Longo, P N Lisboa-Filho, A Valentini, L F Probst, W H Schreiner

Affiliation

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

PMID: 12908285
DOI: 10.1166/153348802760394052

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.

Publication types

Comparative Study
Evaluation Study
Research Support, Non-U.S. Gov't

MeSH terms

Carbon / chemistry
Carbon Dioxide / chemistry*
Carbon Monoxide / chemical synthesis
Catalysis
Crystallization / methods*
Hydrogen / chemistry
Manufactured Materials
Methane / chemistry*
Microspheres
Molecular Conformation
Nanotubes, Carbon / chemistry
Nickel / chemistry*
Particle Size
Quality Control
Silicon Dioxide / chemistry*

Substances

Nanotubes, Carbon
Carbon Dioxide
Carbon
Silicon Dioxide
Nickel
Carbon Monoxide
Hydrogen
Methane