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    Chemiluminescence during Catalysis: Part 2.—Luminescent Transitions of some Rare-earth Activators Embedded in the Catalyst Lattice
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1977, 73 (07), 1977) Aras, Vilas M; Breysse, Michele; Claudel, Bernard; Faure, Lyliane
    A novel “cataluminescent” effect is described in which rare earth activators introduced into the catalyst thoria are electronically excited during carbon monoxide oxidation and emit a light very similar to that given by photoluminescence.
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    Oxygen Electrode Reaction: Part 2.—Behaviour at Ruthenium Black Electrodes
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1972, 68 (5), 1972) Burke, L. D.; O’Meara, T. O.
    Charging curves and cyclic voltammetry were used to investigate the nature of the interaction of oxygen with an active ruthenium surface. Rather vigorous corrosion was observed under highly anodic conditions and the products, which must involve ruthenium ions in a variety of oxidation states, gave rise to a rather unusual catalytic process for oxygen evolution. Although ruthenium can adsorb large quantities of oxygen, its performance as a substrate for the oxygen reduction process is not very promising. Comparison with the reported behaviour on metals such as gold and platinum suggests that while d-band vacancies are essential for oxygen chemisorption, the concentration of such vacancies in ruthenium is too great. The overall result is that considerable overvoltage is required for oxygen reduction as the tightly bonded oxide film on the metal surface can either inhibit the reduction of molecular oxygen, or be itself reduced, even in the presence of dissolved oxygen, at potentials strongly cathodic to the reversible oxygen potential.
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    Hydrogenolysis of Saturated Hydrocarbons on Evaporated Platinum Films
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1972, 68 (11), 1972) Dowie, R. S.; Whan, D. A.; Kemball, C.
    The reactions of ethane, propane, n-butane, isobutanc and neopentane have been examined in the presence of deuterium on platinum films. Details of the products of exchange, hydrogenolysis and, where possible, isomerization are reported. The kinetic behaviour of the hydrogenolysis reaction showed a trend in that reactions of ethane were acccleratory, those of propane maintained a constant rate and those of molecules with four or more carbon atoms decelerated with time. The retardation in rates was much more marked with branched chain than with linear hydrocarbons. The results are discussed in terms of the nature of the adsorbed species accumulating on the surface, species possessing some carbonium ion character being likely precursors to the material responsible for the observed poisoning. Little additional mechanistic information was obtained from an analysis of the deuterium contents of the various molecules as exchange was fast compared to hydrogenolysis or isomerization, leading to rapid isotopic equilibration. A fragmentation correction scheme taking into account the influence of molecular composition on bond rupture has also been developed for analysis of the mass spectral data.