Carreño N L, Leite E R, Longo E, Lisboa-Filho P N, Valentini A, Probst L F, Schreiner W H
CMDMC-LIEC, Departamento de Química, UFSCar, Via Washington Luiz, Km 235, C.P. 676 CEP 13565-905, São Carlos, SP, Brazil.
J Nanosci Nanotechnol. 2002 Oct;2(5):491-4. doi: 10.1166/153348802760394052.
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.
嵌入介孔二氧化硅材料中的稳定镍纳米颗粒被用作将甲烷转化为合成气的催化剂。这种催化剂具有控制碳沉积和活性位点失活的独特性质。我们的纳米复合材料与传统催化剂的对比研究表明，浸渍材料在金属表面呈现出碳纳米管的优先包封和生长。浸渍催化剂表现出更高的形成碳纳米管和晶须的倾向。
