The effect of chemical reducing agents in the synthesis of sol-gel Ru-Sn catalysts: Selective hydrogenation of cinnamaldehyde

J. Hájek, P. Mäki-Arvela, E. Toukoniitty, N. Kumar, T. Salmi, D. Yu Murzin*, L. Červený, I. Paseka, E. Laine

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

Abstract

The influence of chemical reduction on the properties of bimetallic Ru-Sn/SiO2 catalyst was studied. Prepared sol-gel catalysts were reduced by NaBH4, KBH4, H2, and CH 2O. Physical and catalytic properties of reduced catalysts were compared to non-reduced ones in the liquid-phase hydrogenation of cinnamaldehyde. The influence of boron impregnation was investigated. The observed hydrogenation activity and selectivity towards cinnamylalcohol were effected by reduction pretreatment. The NaBH4 reduced catalyst exhibited the highest activity and selectivity. Reduction pretreatment influenced the pore sizes, active metal surface as well as content of carbon impurities. Traces of the reduction agents were detected in the catalysts. Boron impregnation presumably improved the catalyst activity, but had a minor effect on the selectivity.

Original languageEnglish
Pages (from-to)187-195
Number of pages9
JournalJournal of Sol-Gel Science and Technology
Volume30
Issue number3
DOIs
Publication statusPublished - Jun 2004
MoE publication typeA1 Journal article-refereed

Keywords

  • Chemical reduction
  • Cinnamaldehyde
  • Cinnamylalcohol
  • Selective hydrogenation
  • Sol-gel bimetallic catalyst

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