"One-step" methane conversion under non oxidative condition over Pt-Co/NaY catalysts at low temperature

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Abstract

Here is the first report on the non oxidative conversion of methane to larger hydrocarbons in a "one-step" process over Pt-Co/NaY bimetallic samples at low temperature. When the methane is pulsed in a H2/helium mixture at 250°C, the maximum activity being at 1.3 vol. % hydrogen content, higher hydrocarbons are produced during the hydrogen assisted methane chemisorption. The "one-step" process is primarily assigned to the metallic cobalt particles whose reduction is facilitated by the presence of platinum. The effect of hydrogen on the "one-step" methane conversion is discussed in terms of the CHx surface species in which 2 ≥ x > 0 controlled by the relative hydrogen coverage.

Original languageEnglish
Pages (from-to)295-305
Number of pages11
JournalStudies in Surface Science and Catalysis
Volume119
Publication statusPublished - 1998

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Methane
Hydrogen
methane
catalysts
Catalysts
hydrogen
Hydrocarbons
hydrocarbons
Temperature
Helium
Chemisorption
Cobalt
Platinum
chemisorption
platinum
cobalt
helium

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Catalysis

Cite this

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T1 - "One-step" methane conversion under non oxidative condition over Pt-Co/NaY catalysts at low temperature

AU - Guczi, L.

AU - Borkó, L.

AU - Koppány, Z.

AU - Kiricsi, I.

PY - 1998

Y1 - 1998

N2 - Here is the first report on the non oxidative conversion of methane to larger hydrocarbons in a "one-step" process over Pt-Co/NaY bimetallic samples at low temperature. When the methane is pulsed in a H2/helium mixture at 250°C, the maximum activity being at 1.3 vol. % hydrogen content, higher hydrocarbons are produced during the hydrogen assisted methane chemisorption. The "one-step" process is primarily assigned to the metallic cobalt particles whose reduction is facilitated by the presence of platinum. The effect of hydrogen on the "one-step" methane conversion is discussed in terms of the CHx surface species in which 2 ≥ x > 0 controlled by the relative hydrogen coverage.

AB - Here is the first report on the non oxidative conversion of methane to larger hydrocarbons in a "one-step" process over Pt-Co/NaY bimetallic samples at low temperature. When the methane is pulsed in a H2/helium mixture at 250°C, the maximum activity being at 1.3 vol. % hydrogen content, higher hydrocarbons are produced during the hydrogen assisted methane chemisorption. The "one-step" process is primarily assigned to the metallic cobalt particles whose reduction is facilitated by the presence of platinum. The effect of hydrogen on the "one-step" methane conversion is discussed in terms of the CHx surface species in which 2 ≥ x > 0 controlled by the relative hydrogen coverage.

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JO - Studies in Surface Science and Catalysis

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