苊
催化作用
金属
钌
材料科学
化学
光化学
有机化学
蒽
作者
Zhenguo Chi,Xiaopo Niu,Danni Liu,G.X. Wu,Wenli Zhao,Yuwen Qin,Kaige Zhang,Nan Jiang,Junfeng Zhang,QingFa Wang
标识
DOI:10.1002/cnma.202400092
摘要
Developing high‐performance aviation fuel is highly desired for the rapid development of supersonic aircraft. Herein, selective deep hydrogenation of polycyclic aromatics to a high‐density fuel is developed over a Ru‐based catalyst. The influences of strong Ru‐support interaction on tailoring the reaction pathways of acenaphthene hydrogenation were investigated using different oxide supports (SiO2, CeO2, TiO2). Ru/CeO2 and Ru/TiO2 with strong SMSI possess abundant electron‐deficient Ruδ+ species which exhibit a good ability to promote H2 dissociation and increase the isomerization rate of saturated aromatic compounds. Due to the enhanced adsorption of aromatic molecules, Ru/CeO2 (1.30 μmol·min‐1·g‐1) exhibits superior catalytic activity in comparison to Ru/TiO2 (1.25 μmol·min‐1·g‐1) during acenaphthene hydrosaturation, while Ru/TiO2 exhibits the highest isomerization reaction rate (7.60 × 10‐2 μmol·min‐1·g‐1) because of its excellent hydrogen spillover ability and high content of Ruδ+ species. The best catalytic activity with 96% selectivity of ccc‐perhydroacenaphthene was achieved on Ru/TiO2, and an isomerization mechanism of perhydroacenaphthene isomers was proposed.
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