碳纳米管内负载氧化铈对催化脱氢性能的影响

Effect of Cerium Oxides Supported Inside Carbon Nanotubes on their Catalytic Dehydrogenation Performance

成功地通过湿浸渍法、借助毛细管作用将CeO_2纳米粒子引进到碳纳米管管内。研究发现,所制备的10CeO_2-in-CNTs材料由于氧化铈和碳纳米管之间存在强相互作用,导致了碳纳米管电子结构变化和氧化铈晶格畸变,促进碳纳米管碳原子和氧化铈反应性的增加,大大提高了该材料的催化脱氢性能。

We successfully prepared CeO2 nanoparticles supported inside carbon nanotubes with a wet impregnation method and the usage of capillary action. It is found that the as-prepared carbon nanotubes with CeO2 nanoparticles can lead to the change in the electronic structure of carbon nanotubes and lattice distortion of cerium oxides due to the presence of the strong interaction between carbon nanotubes and cerium oxides, which promotes the increased reactivity of carbon nanotubes and cerium oxides. Therefore, the carbon nanotube-based materials show the great improvement for the catalytic dehydrogenation properties.