Browsing by Author "Scott, Kevin F."

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    Kinetics, thermochemistry and mechanism of hydrogenolysis of aliphatic aldehydes on Ni–SiO2
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1978, 74 (09-12), 1978) Scott, Kevin F.; Abdulla, Mohammad A.; Hussein, Falah H.
    An investigation of the kinetics of the hydrogenolysis reaction of aliphatic aldehydes on Ni–SiO2 by stopped-flow chromatography is described and the rate plots fitted to theoretical equations which reveal that the reaction proceeds in two kinetically discernible stages, one apparently by a Langmuir–Hinshelwood mechanism and the other by a Rideal–Eley mechanism. These conclusions are supported by the dependences of the rates on the hydrogen pressure. Thermochemical measurements using a microcalorimetric device, have enabled the determination of the thermochemistry of a reaction leading to a surface species. A discussion of the prevailing mechanism is presented.