Synthesis, characterization and shape-dependent catalytic CO oxidation performance of ruthenium oxide nanomaterials: Influence of polymer surfactant

Antony Ananth, Duncan H. Gregory, Young Sun Mok

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Ruthenium oxide nano-catalysts supported on mesoporous ?-Al2O3 have been prepared by co-precipitation method and tested for CO oxidation. The effect of polyethylene glycol (PEG) on the properties of the catalyst was studied. Addition of the PEG surfactant acted as a stabilizer and induced a change in the morphology of ruthenium oxide from spherical nanoparticles to one-dimensional nanorods. Total CO conversion was measured as a function of morphology at 175 °C and 200 °C with 1.0 wt.% loading for PEG-stabilized and un-stabilized catalysts, respectively. Conversion routinely increased with temperature but in each case, the PEG-stabilized catalyst exhibited a notably higher catalytic activity as compared to the un-stabilized equivalent. It can be assumed that the increase in the activity is due to the changes in porosity, shape and dispersion of the catalyst engendered by the use of PEG.

Original languageEnglish
Pages (from-to)344-358
Number of pages15
JournalApplied Sciences (Switzerland)
Volume5
Issue number3
DOIs
Publication statusPublished - 2015

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Instrumentation
  • Engineering(all)
  • Process Chemistry and Technology
  • Computer Science Applications
  • Fluid Flow and Transfer Processes

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