University of Oulu

Lahti, R., Bergna, D., Romar, H. et al. Top Catal (2017). doi:10.1007/s11244-017-0823-z

Characterization of cobalt catalysts on biomass-derived carbon supports

Saved in:
Author: Lahti, Riikka1,2; Bergna, Davide1,2; Romar, Henrik1,2;
Organizations: 1Research Unit of Sustainable Chemistry, University of Oulu, Oulu, Finland
2Kokkola University Consortium Chydenius, Applied Chemistry, University of Jyvaskyla, Kokkola, Finland
3Dipartimento di Chimica, Università degli Studi di Milano, Milan, Italy
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe201706157284
Language: English
Published: Springer Verlag , 2017
Publish Date: 2018-05-31
Description:

Abstract

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.
see all

Series: Topics in Catalysis
ISSN: 1022-5528
ISSN-E: 1572-9028
ISSN-L: 1022-5528
Volume: First online
Issue: First online
Article number: 823
DOI: 10.1007/s11244-017-0823-z
OADOI: https://oadoi.org/10.1007/s11244-017-0823-z
Type of Publication: A1 Journal article – refereed
Field of Science: 116 Chemical sciences
Subjects:
Funding: Author (R.L) acknowledge the EU/European Regional Development Fund, Leverage from the EU program (within project nr. A71029) for financial support.
Copyright information: © Springer Science+Business Media New York 2017. The final publication is available at Springer via http://dx.doi.org/10.1007/s11244-017-0823-z