Direct synthesis of hydrogen peroxide over Au-Pd catalyst in a wall-coated microchannel

Violeta Paunovic, Vitaly Ordomsky, M. Fernanda Neira D'Angelo, Jaap C. Schouten, T. Alexander Nijhuis

Research output: Contribution to journalArticleAcademicpeer-review

39 Citations (Scopus)
3 Downloads (Pure)

Abstract

Hydrogen peroxide production via direct hydrogenation of molecular oxygen offers many challenges for both catalyst and reactor development to have a high selectivity. An important advantage of using a capillary channel microreactor is the possibility to use H2/O2 concentrations that would be considered explosive in traditional reactors. Au-Pd bimetallic catalysts prepared by impregnation or two-phase synthesis procedure were deposited in a form of thin catalytic film in a capillary microchannel. This coated catalyst performed identical to a comparable slurry catalyst tested in a classical batch autoclave. Operating the microreactor within what would have been the explosive regime in a conventional reactor results in a higher selectivity and productivity.

Original languageEnglish
Pages (from-to)325-332
Number of pages8
JournalJournal of Catalysis
Volume309
DOIs
Publication statusPublished - 1 Jan 2014

Keywords

  • Au-Pd nanoparticles
  • Direct synthesis
  • Hydrogen peroxide
  • Two-phase nanoparticle synthesis
  • Wall-coated microchannel

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