Novel Pd/CeO2 and Pd-NiO/CeO2 Nanocomposites' Catalytic Activity in Glycerol Oxidation Processes
Proceedings of the Estonian Academy of Sciences 2017
Elīna Sīle, Svetlana Čornaja, Ilze Lulle, Svetlana Žižkuna, Konstantīns Dubencovs, Aija Krūmiņa

In this work novel Pd supported on cerium oxide nanocomposites in the liquid phase glycerol oxidation with molecular oxygen was studied. Pd/CeO2 and Pd-NiO/CeO2 composites with different Pd loading were prepared using the extractive-pyrolytic method. In the glycerol oxidation processes it was found that Pd/CeO2 and Pd-NiO/CeO2 composites are catalytically active. Besides, NiO additives can significantly increase Pd/CeO2 catalysts’ activity and selectivity to the main product – glyceric acid. Several glycerol oxidation parameters like NaOH initial concentration, glycerol/Pd molar ratio, oxygen pressure and temperature were varied. The best yield of glyceric acid reached 71–75 mol% with full glycerol conversion.


Keywords
catalysis, oxidation, glycerol, nanocomposites, supported catalyst
DOI
10.3176/proc.2017.4.06
Hyperlink
http://www.kirj.ee/29650/?tpl=1061&c_tpl=1064

Sīle, E., Čornaja, S., Lulle, I., Žižkuna, S., Dubencovs, K., Krūmiņa, A. Novel Pd/CeO2 and Pd-NiO/CeO2 Nanocomposites' Catalytic Activity in Glycerol Oxidation Processes. Proceedings of the Estonian Academy of Sciences, 2017, Vol. 66, No. 4, pp.486-492. ISSN 1736-6046. e-ISSN 1736-7530. Available from: doi:10.3176/proc.2017.4.06

Publication language
English (en)
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