白金触媒上でのメタンの表面反応

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  • The surface reaction rate of methane on a platinum catalyst.
  • ハッキン ショクバイジョウ デ ノ メタン ノ ヒョウメン ハンノウ

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An experimental study was carried out for the surface reaction of methane on the platinum catalyst which is placed on the stagnation point of a circular cylinder. By paying much attention to the reproducibity of the catalyst activity, a stable and well activated catalytic surface was obtained. by measuring the methane concentration profile near the catalytic surface, diffusion flux to the surface and surface concentration of methane were obtained. From these results, the dependence of surface reaction on surface temperature and surface methane concentration was made clear. The rate of surface reaction on surface shows a linear dependence of surface reaction rate on temperature can be represented by the Arrhenius' equation. Activation energy for this surface reaction was determined to be 80 kJ/mol.

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