Browsing by Author "Metcalfe, Alan"

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    Adsorptive Elastic Moduli ol Kaolinite and Porous Glass, and the Structure of the Adsorbed Phase
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1974, 70 (1-6), 1974) Metcalfe, Alan; Wilcock, Robert J.
    The changes in length of rods of kaolinite and porous glass when exposed to the vapours of H2O, CH3OH, CHCl3, and CCl4 have been studied. Differences in derived elastic moduli of the adsorbent with different adsorbates are attributed to the inappropriate application of the Gibbs adsorption equation to adsorption at the gas solid interface for prediction of magnitude of forces exerted in the adsorbent.
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    Infrared studies of ethanol adsorbed on porous glass
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1978, 74 (08), 1978) Metcalfe, Alan; Shankar, S. Ude
    The interaction of ethanol with Vycor porous glass, at room temperature, has been studied with the aid of infrared spectroscopy. Bands between 3750 and 2800 cm–1 were observed. They are attributed to three adsorbed species, which have been tentatively identified as ethanol, ethylene and a carbonium ion (which is thought to be a precursor of the ethylene). The olefin is thought to result from the dissociative adsorption of ethanol on acidic and basic centres, via a mechanism proposed by Figueras et al. The acidic centres have been identified as Brönsted acids.