费托法
煅烧
介孔材料
钴
催化作用
材料科学
纳米颗粒
化学工程
金属
色散(光学)
纳米技术
化学
冶金
有机化学
工程类
物理
光学
选择性
作者
F.J. Manso Platero,S. Todorova,L. Aoudjera,Laure Michelin,Bénédicte Lebeau,Jean‐Luc Blin,Juan P. Holgado,Alfonso Caballero,G. Colón
标识
DOI:10.1021/acsaem.3c01432
摘要
Cobalt supported on mesostructured TiO2 catalysts has been prepared by a wet-impregnation method. The Co/TiO2 catalytic system showed better catalytic performance after support calcination at 380 °C. Co nanoparticles appeared well distributed along the mesopore channels of TiO2. After reduction pretreatment and reaction, a drastic structural change leads to mesopore structure collapse and the dispersion of the Co nanoparticles on the external surface. Along this complex process, Co species first form discrete nanoparticles inside the pore and then diffuse out as the pore collapses. Through this confinement, a strong metal-support interaction effect is hindered, and highly stable metal active sites lead to better performance for Fischer-Tropsch synthesis reaction toward C5+ products.
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