This article is cited in 7 papers

Communications

Catalytic activity of Pt and Pd in gaseous reactions of H₂ and CH₄ oxidation at low pressures

N. M. Rubtsov^a, V. I. Chernysh^a, G. I. Tsvetkov^a, K. Ya. Troshin^b, A. P. Kalinin<sup>c

a</sup> A.G. Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka, Moscow Region, Russian Federation
^b N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, Russian Federation
^c A.Yu. Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, Moscow, Russian Federation

Abstract: The value of effective activation energy of the dark reaction on Pd wire for 2H₂+O₂ reaction at 80 Torr has been estimated as 4.1±1kcal mol^–1 that is characteristic of a surface process. It was demonstrated that at pressures up to 200 Torr, the rate of chain termination determines the critical diameter value in the flame penetration through Pt and Pd cylinders. The efficiency of Pd surface in the chain termination reaction was found much greater than that of Pt.

Keywords: flame, penetration, palladium, platinum, cylinders, activation energy, chain, termination..

Language: English

DOI: 10.1016/j.mencom.2020.01.041

Bibliographic databases:

•