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6172637 
Book/Book Chapter 
“One-Step” Methane Conversion Under Non Oxidative Condition Over Pt-Co/NaY Catalysts at Low Temperature 
Borkó, L; Guczi, L; Kiricsi, I; Koppány, Z 
1998 
1 
Studies in surface science and catalysis
ISSN: 0167-2991 
Elsevier 
Studies in Surface Science and Catalysis 
119 
295-300 
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. 
Vaccari, A.