Carbon-supported Ru and Pd nanoparticles: Efficient and recyclable catalysts for the aerobic oxidation of benzyl alcohol in water

Eduardo J. Garcia-Suarez, Mar Tristany, Ana B. García, Vincent Collière, Karine Philippot

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Ru NPs and Pd NPs were firstly synthesized and further supported on mesoporous carbon materials. Spherical and homogenously dispersed MNPs displaying mean sizes in the range 1.2–2.2nm were thus achieved. The catalytic activity as well as the recyclability of these carbon-supported Ru and Pd NPs in the aerobic oxidation of benzyl alcohol to benzaldehyde in water was investigated, showing excellent conversions and high selectivity to the aldehyde. The selectivity towards aldehyde is particularly relevant since usually the oxidation of primary alcohols in water mainly yields the carboxylic acid. Moreover, these nanocatalysts present good recyclability in terms of conversion with up to eight successive reaction cycles. However, the selectivity to the aldehyde decreased, in some cases significantly, after the third cycle. The catalytic activity of these systems was found to be influenced by the hydrophilicity of the carbon support surface. However, the significance of this influence depends on the ligand used to stabilize the MNPs.
Original languageEnglish
JournalMicroporous and Mesoporous Materials
Volume153
Pages (from-to)155-162
ISSN1387-1811
DOIs
Publication statusPublished - 2012
Externally publishedYes

Keywords

  • Carbon materials
  • Heterogeneous catalysis
  • Metal nanoparticles
  • Alcohol oxidation
  • Recyclable catalysts

Fingerprint Dive into the research topics of 'Carbon-supported Ru and Pd nanoparticles: Efficient and recyclable catalysts for the aerobic oxidation of benzyl alcohol in water'. Together they form a unique fingerprint.

Cite this