Careful cleaning of a nickel filament has allowed measurements of the reactivity of its surface towards hydrogen to be made. The initial sticking probability at room temperature was 3.6 × 10–3 and the maximum uptake 1.5 × 1014 mol. cm–2. Both sticking probability and uptake increased at lower filament temperatures. The shape of the sticking probability curve is attributed to the formation of a long-lived precursor to chemisorption.
R. P. H. Gasser, K. Roberts and A. J. Stevens, Trans. Faraday Soc., 1969, 65, 3105 DOI: 10.1039/TF9696503105
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