Please use this identifier to cite or link to this item: http://hdl.handle.net/11717/5492
Title: Hydrogen solubility and thermodynamics of dissolved hydrogen in Pd1-xTbx (x = 0.05 and 0.08) solid solution alloys
Authors: Narayanan, S.S.
Ramaprabhu, S.
Issue Date: 1997
Citation: Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics, 101(12), 1896-1900
Abstract: The hydrogen absorption and the thermodynamics of dissolved hydrogen in Pd1-xTbjr (x = 0.05 and 0.08) solid solution alloys have been determined from the pressure-composition-temperature relation in the ranges 5�P/mbar�1000 and 473�T/K�873 using a pressure reduction method. The hydrogen solubility is found to increase with increase of xTb. The partial molar enthalpy of hydrogen solution at infinite dilution (?HH o) the partial molar excess entropy of dissolved hydrogen at infinite dilution (?SH E,o) decrease with increase of terbium content. The chemical potential of dissolved hydrogen at infinite dilution (?HH o) decreases with increase of x-n, indicating that the stability of dissolved hydrogen increases with increase of xTb. The Pd1-xTbx-H systems fall on the correlation between the ionic diameter (dRE) of the substitutent RE metals when in solution in Pd and the exothermicity of hydrogen absorption for the Pd1-xREx-H (RE = Er, Ho, Dy, Y, Gd and Sm; x - 0.05 and 0.075) systems. ? WILEY-VCH Verlag GmbH, 1997.
URI: http://hdl.handle.net/11717/5492
ISSN: 0940483X
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