• Journal of Inorganic Materials
  • Vol. 35, Issue 9, 999 (2020)
Juhan WANG, Xiong WEN, Chengchao LIU, Yuhua ZHANG, Yanxi ZHAO, and Jinlin LI*
Author Affiliations
  • 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
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    DOI: 10.15541/jim20190500 Cite this Article
    Juhan WANG, Xiong WEN, Chengchao LIU, Yuhua ZHANG, Yanxi ZHAO, Jinlin LI. Preparation and Fischer-Tropsch Synthesis Performance of Hierarchical Co/Al-SiO2 Catalyst[J]. Journal of Inorganic Materials, 2020, 35(9): 999 Copy Citation Text show less

    Abstract

    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%.
    Juhan WANG, Xiong WEN, Chengchao LIU, Yuhua ZHANG, Yanxi ZHAO, Jinlin LI. Preparation and Fischer-Tropsch Synthesis Performance of Hierarchical Co/Al-SiO2 Catalyst[J]. Journal of Inorganic Materials, 2020, 35(9): 999
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