Collect. Czech. Chem. Commun. 1982, 47, 2363-2367

Approximation of the adsorption heats of hydrogen on transition metals by means of an empirical model

Oldřich Štroufa, Jiří Fuseka and Karel Kuchynkab

a Institute of Inorganic Chemistry, Czechoslovak Academy of Sciences, 250 68 Řež
b The J. Heyrovský Institute of Physical Chemistry and Electrochemistry, Czechoslovak Academy of Sciences, 121 38 Prague 2


The adsorption heats of hydrogen on transition metals were approximated using a first order polynomial containing variables of basic physical importance, which were determined recently by means of the empirical method of pattern recognition: the heat of fusion, heat of vaporization, Pauling electronegativity, molar thermal conductivity, first and second ionization energies, electrical conductivity, Debye temperature and atomic volume of the metal. The agreement with experimental values is closer than that obtained with the Pauling relation. Values of adsorption heats are predicted for seven transition metals.