Al-Cu-Fe quasicrystals for steam reforming of methanol: A new form of copper catalysts

Satoshi Kameoka, Toyokazu Tanabe, An Pang Tsai

Research output: Contribution to journalConference articlepeer-review

47 Citations (Scopus)

Abstract

Alloy catalysts were prepared by leaching various structures of Al-Cu-(Fe) alloys (quasicrystal (QC), beta- or theta-phase) in NaOH and Na 2CO3 aqueous solutions. Comparison of the catalytic properties for steam reforming of methanol (SRM) on different Al-Cu-(Fe) alloy phases (quasicrystalline versus crystalline phase) was made. At high temperatures (e.g., 360°C), the catalytic activity of the QC catalyst (5% Na2CO3-leached) for the SRM was much higher than that of other phase catalysts. No sintering of highly dispersed copper particles on QC catalyst was observed by XRD measurements even after the SRM reaction at 360°C. We propose that the high catalytic activity and the excellent thermal stability of copper particles on QC catalyst are due to the immiscibility of Fe with Cu and the interaction with QC surface.

Original languageEnglish
Pages (from-to)23-26
Number of pages4
JournalCatalysis Today
Volume93-95
DOIs
Publication statusPublished - 2004 Sep 1
Externally publishedYes
EventSelections from the Presentations of the 3rd Asia-Pacific Congress - Dalian, China
Duration: 2003 Oct 122003 Oct 12

Keywords

  • Al-Cu-Fe alloy
  • Immiscible
  • Leaching
  • Methanol steam reforming
  • Quasicrystal
  • Quasicrystalline catalyst
  • Thermal stability

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Fingerprint

Dive into the research topics of 'Al-Cu-Fe quasicrystals for steam reforming of methanol: A new form of copper catalysts'. Together they form a unique fingerprint.

Cite this