Activated carbons from waste biomass and low rank coals as catalyst supports for hydrogen production by methanol decomposition

Activated carbons with different textural and chemical surface characteristics were synthesized from waste biomass and low rank coals, and furthermore used as a host matrix for cobalt species, varying the preparation and modification methods. The obtained activated carbons and modified samples were...

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Bibliographic Details
Published in:Fuel processing technology 2015-09, Vol.137, p.139-147
Main Authors: Tsyntsarski, B., Stoycheva, I., Tsoncheva, T., Genova, I., Dimitrov, M., Petrova, B., Paneva, D., Cherkezova-Zheleva, Z., Budinova, T., Kolev, H., Gomis-Berenguer, A., Ania, C.O., Mitov, I., Petrov, N.
Format: Article
Language:English
Subjects:
Activated carbon
Biomass
Catalysis
Catalysts
Chemical Sciences
Coal
Coal tar pitch
Cobalt
Cobalt modification
Environmental Engineering
Environmental Sciences
Hydrogen
Material chemistry
Methanol decomposition
Methyl alcohol
Texture
Waste biomass
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Summary:Activated carbons with different textural and chemical surface characteristics were synthesized from waste biomass and low rank coals, and furthermore used as a host matrix for cobalt species, varying the preparation and modification methods. The obtained activated carbons and modified samples were characterized by complex of various physicochemical methods, such as: low temperature physisorption of nitrogen, XRD, EPR, XPS, UV–Vis and TPR with hydrogen. Boehm method was applied for qualitative and quantitative determination of oxygen-containing groups on the carbon surface before and after cobalt deposition. The catalytic properties of cobalt modifications were tested in methanol decomposition. The dominant effect of activated carbon texture over the surface chemistry on the state and catalytic behavior of cobalt species was discussed. •Novel activated carbons were synthesized from biomass and coal by-products.•The textural and chemical surface properties of the synthesized carbons were studied.•The activated carbons were modified with Co by incipient wetness impregnation.•Carbon based cobalt catalysts were successfully tested in methanol decomposition.
ISSN:0378-3820
1873-7188
DOI:10.1016/j.fuproc.2015.04.016