A comparative study of the decomposition of ethanol on Pt metals supported by carbon

A. Gazsi, P. Tolmacsov, F. Solymosi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The decomposition of ethanol has been investigated on Pt metals supported by carbon Norit of high surface area. The reaction starts above 450 K and approaches total conversion at 673-723 K. The major products are H2, CO and CH4. The selectivity of hydrogen formation on all metals supported by carbon Norit scattered around 30%, and almost ~40% of the hydrogen content of ethanol has been converted to gaseous hydrogen at the total conversion. The order of the efficiency of the metals based on the turnover frequencies is Ru > Pt > Ir > Rh > Pd. An advantageous feature of the Norit-supported Pt metals is that no deactivation occurred at 723 K in 10 h, which is in contrast to the behaviour of Pt/Al2O3. The high stability of the catalysts is attributed to the lack of reactive OH groups required for the formation of acetate poisoning the metals. Adding water to ethanol only slightly improved the production of hydrogen.

Original languageEnglish
Pages (from-to)386-390
Number of pages5
JournalCatalysis Letters
Volume130
Issue number3-4
DOIs
Publication statusPublished - Jul 2009

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Ethanol
Carbon
Metals
Hydrogen
Charcoal
Decomposition
Carbon Monoxide
Acetates
Catalysts
Water

Keywords

  • Carbon support
  • Ethanol decomposition
  • Hydrogen production
  • Pt metals
  • Reforming of ethanol

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

A comparative study of the decomposition of ethanol on Pt metals supported by carbon. / Gazsi, A.; Tolmacsov, P.; Solymosi, F.

In: Catalysis Letters, Vol. 130, No. 3-4, 07.2009, p. 386-390.

Research output: Contribution to journalArticle

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