Abstract
AbstractThe hydrogen absorption and the thermodynamics of dissolved hydrogen in Pd1‐xTbx(x= 0.05 and 0.08) solid solution alloys have been determined from the pressure‐composition‐temperature relation in the ranges 5 ßP/mbar ß 1000 and 473 ßT/K ß 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 (ΔH°H) and the partial molar excess entropy of dissolved hydrogen at infinite dilution (ΔSEH°) decrease with increase of terbium content. The chemical potential of dissolved hydrogen at infinite dilution (ΔH°H) decreases with increase of xTbindicating 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.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Berichte der Bunsengesellschaft für physikalische Chemie
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
