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Characterization of Cobalt Catalysts on Biomass-Derived Carbon Supports

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Lahti, R., Bergna, D., Romar, H., Hu, T., Comazzi, A., Pirola, C., . . . , & Lassi, U. (2017). Characterization of Cobalt Catalysts on Biomass-Derived Carbon Supports. Topics in Catalysis, 60 (17-18), 1415-1428. doi:10.1007/s11244-017-0823-z
Published in
Topics in Catalysis
Authors
Lahti, Riikka |
Bergna, Davide |
Romar, Henrik |
Hu, Tao |
Comazzi, Alberto |
Pirola, Carlo |
Bianchi, Claudia L. |
Lassi, Ulla
Date
2017
Discipline
Kemia
Copyright
© Springer Science+Business Media New York 2017. This is a final draft version of an article whose final and definitive form has been published by Springer. Published in this repository with the kind permission of the publisher.

 
Cobalt catalysts are known to have a high activity and selectivity in the Fischer–Tropsch reaction converting synthesis gas to higher hydrocarbons (C5+). These catalysts have been supported by different porous materials. Porous carbon materials like activated carbon (AC) have physical and chemical surface properties that affect the preparation of supported metal catalysts and can easily be tailored. In this study, AC was produced by carbonization and steam activation of lignin, a waste fraction from the Kraft pulping process. A series of Co/AC-catalysts was produced and characterized by several techniques. According to the results, tailored properties (high surface area, mesoporosity) were obtained for carbon supports. Further, ash content could be reduced by acid treatment. Co/AC-catalysts prepared by ultrasonic assisted impregnation have high metal dispersion (10.1%). It was also observed that small metal particles were difficult to reduce, but acid (HNO3) treatment has a positive effect on reduction temperatures. ...
Publisher
Springer
ISSN Search the Publication Forum
1022-5528
Keywords
activated carbon catalyst characterization cobalt support
DOI
10.1007/s11244-017-0823-z
URI

http://urn.fi/URN:NBN:fi:jyu-201710264071

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