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Study on CO Adsorption on in-situ Brass Formed Cu/ZnO

  • Jung, Kwang-Deog ;
  • Joo, Oh-Shim
  • Published : 2002.12.20

Abstract

The isotherms of CO adsorption on the Cu/ZnO sample treated with with hydrogen and methanol are investigated. The heats of adsorption of CO on the Cu/ZnO treated with hydrogen at 723K for 3 h are in the range from 25.7 kJ/mol at $\theta=0.8$ to 59.8 at $\theta=0.1$, while those on the Cu/ZnO sample treated with methanol at 523 K for 3 h are in the range 30.3 kJ/mol at $\theta=0.8$ to 99.8kJ/mol at $\theta=0.1.$ The Cu/ZnO samples treated with hydrogen do. The heats of adsorption at q=0.1 increase with the methanol treatment time within 30 min and leveled off afterwards.

Keywords

CO adsorption;Heat of adsorption;Brass formation;Cu/ZnO

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