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Influence of a Chemisorbed Film on Subsequent Physical Adsorption Processes

Naturevolume 168pages433434 (1951) | Download Citation



Stone and Tiley1 have reported that the presence of a chemisorbed film of carbon monoxide reduces the low-temperature physical adsorption of krypton on a copper oxide catalyst. This observation is of particular interest, because the accepted method2 of estimating the area of free metal in a mixed surface involves the assumptions that, at low temperatures, carbon monoxide is initially chemisorbed only on the metal surface, and afterwards physically adsorbed over the whole surface; and that the chemisorbed layer and the bare non-metallic surface have the same adsorption characteristics.

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  1. 1

    Stone and Tiley, Nature, 167, 654 (1951).

  2. 2

    Emmett and Brunauer, J. Amer. Chem. Soc., 59, 1553 (1937).

  3. 3

    Podgurski, Kummer, De Witt and Emmett, J. Amer. Chem. Soc., 72, 5382 (1950).

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  1. Fuel Research Station, Greenwich, London, S.E.10

    • A. S. JOY
    •  & T. A. DORLING


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