Journal of Inorganic Materials ›› 2020, Vol. 35 ›› Issue (9): 999-1004.DOI: 10.15541/jim20190500

Special Issue: 环境材料论文精选

• RESEARCH PAPER • Previous Articles     Next Articles

Preparation and Fischer-Tropsch Synthesis Performance of Hierarchical Co/Al-SiO2 Catalyst

WANG Juhan(),WEN Xiong,LIU Chengchao,ZHANG Yuhua,ZHAO Yanxi,LI Jinlin()   

  1. Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
  • Received:2019-09-29 Revised:2019-12-17 Published:2020-09-20 Online:2020-03-03
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  • Supported by:
    National Natural Science Foundation of China(21972170);National Natural Science Foundation of China(21902187);Natural Science Foundation of Hubei Province of China(2018CFB365)


Hierarchically porous silica-aluminum is an important support material for metal-catalysts, because of its excellent properties. Herein, an efficient hydrothermal approach for the production of hierarchical aluminum- doped silica (Al-SiO2) architectures was reported by employing aluminum nitrate as an aluminium source and TEOS as silicon source. Effects of the structure-oriented agent on the structure of Al-SiO2 were investigated. Structural features of Al-SiO2 were characterized by XRD, SEM and N2-physisorption. The results showed that hierarchical Al-SiO2 with "worm-like" porous of 30-40 nm can be synthesized by using TPAOH as the structure-oriented agent and hydrothermal treatment at 80 ℃. The cobalt catalysts were prepared by the wetness impregnation method. Compared with commercial SiO2 supported cobalt catalysts, the Fischer-Tropsch synthesis performance of the catalyst Co/Al-SiO2 is significantly enhanced, i.e., CO conversion nearly doubled, CH4 selectivity reduced by 19.3wt%, C2-C4 selectivity reduced by 13.3wt%, and the selectivity of gasoline products (C5-C12) reached 53.3wt%.

Key words: hydrothermal method, hierarchical porous materials, Al-SiO2, Cobalt catalyst, Fischer-Tropsch synthesis

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