Microchemical engineering of catalytic reactions

E. Schütz, N. Hartmann, Y. Kevrekidis, R. Imbihl

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

The catalytic reduction of NO with H2 or CO and the O2 + H2 reaction have been investigated at low pressure (p < 10-3 mbar) on microstructured bimetallic Pt(100)/Rh and Pt(100)/Ti surfaces prepared by lithographic techniques. Photoemission electron microscopy (PEEM) was the spatially resolving technique used. It is shown that diffusional coupling leads to dynamic eftects which are size-dependent and thus can be controlled through the design of the surface microstructure. In connection with periodic parameter forcing these dynamic effects can potentially be exploited to improve the yield and selectivity of catalytic reactions.

Original languageEnglish (US)
Pages (from-to)181-186
Number of pages6
JournalCatalysis Letters
Volume54
Issue number4
DOIs
StatePublished - Jan 1 1998

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Keywords

  • Automotive catalytic converter
  • Chemical waves
  • Composite surfaces
  • NO reduction
  • PEEM
  • Photoemission electron microscopy
  • Pt
  • Rh
  • Scanning photoelectron microscopy
  • Surface diffusion

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