Pt supported TiO2-nanofibers and TiO2-nanopowder as catalysts for glycerol oxidation

Novel TiO 2 nanofiber supported platinum catalysts Pt/NF–TiO 2 were synthesized and compared with TiO 2 nanopowder supported catalysts Pt/NP–TiO 2 in selective glycerol oxidation. It was found that Pt/NF–TiO 2 and Pt/NP–TiO 2 composites are catalytically active in alkaline glycerol solutions; glycer...

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Published in:Reaction kinetics, mechanisms and catalysis mechanisms and catalysis, 2016-12, Vol.119 (2), p.569-584
Main Authors: Chornaja, S., Sile, E., Drunka, R., Grabis, J., Jankovica, D., Kunakovs, J., Dubencovs, K., Zhizhkuna, S., Serga, V.
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Physical Chemistry
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Summary:Novel TiO 2 nanofiber supported platinum catalysts Pt/NF–TiO 2 were synthesized and compared with TiO 2 nanopowder supported catalysts Pt/NP–TiO 2 in selective glycerol oxidation. It was found that Pt/NF–TiO 2 and Pt/NP–TiO 2 composites are catalytically active in alkaline glycerol solutions; glyceric acid is obtained as the main product of reaction. Catalyst activity and selectivity dependency on NaOH initial concentration, oxygen pressure and n(glycerol)/n(Pt) ratio were studied. Selectivity to glyceric acid of 63 % with full glycerol conversion and selectivity of 68 % with 95 % glycerol conversion is obtained correspondingly over Pt/NF–TiO 2 and Pt/NP–TiO 2 catalysts.
ISSN:1878-5190
1878-5204
DOI:10.1007/s11144-016-1067-9