A temperature programmed desorption study of H2 from supported nickel catalyst |
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| Authors: | R Spinicci and A Tofanari |
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| Institution: | (1) Dipartimento di Energetica, Universitá di Firenze, Via S. Marta 3, 50139 Firenze, Italy |
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| Abstract: | The chemisorption of hydrogen on Ni/SiO2 has been studied by measuring temperature programmed desorption on various samples under various experimental conditions. Two peaks are found, which can be related to a weakly and to a strongly bound species of chemisorbed hydrogen. Their analysis has been performed by a method which makes possible to determine whether a certain kinetic model can describe the entire desorption process or to assign a clear meaning to the corresponding kinetic parameters.
              Ni/SiO2       -       .  .    , , ,  , .
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