On the temperature programmed desorption of hydrogen from polycrystalline copper

Matthias B. Fichtl, Olaf Hinrichsen

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Temperature programmed hydrogen desorption (H2-TPD) is a versatile tool to characterize metal surfaces in heterogeneous catalysts. We present a systematic H2-TPD study combined with a kinetic analysis of the H2 desorption process from pure polycrystalline copper and alumina supported copper. The results show that, in contrast to typical Cu/ZnO based methanol synthesis catalysts, the alumina support has no measureable influence on the desorption process and that the copper surface in both catalyst can be accurately described by a theoretically deduced mixture of the low index planes Cu(100), Cu(110), and Cu(111). Graphical Abstract: [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)2114-2120
Number of pages7
JournalCatalysis Letters
Volume144
Issue number12
DOIs
StatePublished - Dec 2014

Keywords

  • Catalysis
  • Copper catalysts
  • Elementary kinetics
  • Heterogeneous catalysis

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