燃料化学学报（中英文）2022，Vol.50Issue(10)：1331-1340,10.DOI:10.1016/S1872-5813(22)60031-8
氧化处理碳气凝胶载体以调节Ru/CA催化剂的费托性能
Oxidation treatment of carbon aerogels supports to modulate Ru/CA catalysts for Fischer-Tropsch synthesis
摘要
Abstract
Oxidation treated carbon materials for exploiting highly efficient and stable loaded catalysts have been proven to be valid. In this work, the surfaces of carbon aerogels (CA) were functionalized with different oxidizing agents, i.e., H2O2 and HNO3. A series of Ru-supported catalysts on carbon aerogels (CA) with/without functionalized were prepared by the impregnation strategy. The impact of oxidation treatment on the texture features of carbon aerogels, the types and contents of formed surface oxygen-containing functional groups, the metal-support interactions and the Fischer-Tropsch synthesis reaction performances of the catalysts were systematically investigated. Our results showed that Ru/CA catalyst without oxidation treatment displayed the highest initial activity but the poor stability, while the Ru/CA-H2O2 catalyst exhibited excellent activity and C5+selectivity. The oxidation treatment increased the carbon aerogels defects, thereby broadening the specific surface area. The increased content of oxygen-containing functional groups on the surface enhanced the interaction between the support and Ru nanoparticles and improved the stability of the catalyst. Nevertheless, the excessive oxygen-containing functional groups on the surface decreased the activity and the C5+ selectivity of carbon aerogels-loaded Ru catalysts.关键词
碳气凝胶/化学氧化/表面含氧基团/金属与载体相互作用/负载钌催化剂/费托合成Key words
carbon aerogels/chemical oxidization/surface oxygen containing groups/metal-support interaction/supported ruthenium catalyst/Fischer-Tropsch synthesis分类
化学化工引用本文复制引用
张淋娜,张娟,王国富,赵文涛,陈建刚..氧化处理碳气凝胶载体以调节Ru/CA催化剂的费托性能[J].燃料化学学报（中英文）,2022,50(10):1331-1340,10.基金项目
The project was supported by the National Natural Science Foundation of China(22072175),the Chinese Academy of Sciences Strategic Pilot Science and Technology Special(Class A)(XDA03040200)and Beijing Sanju Environmental Protection&New Materials Co.,Ltd(SJHT-18038). （22072175）
