Abstract
In the present study, hydrogen absorption/desorption properties of porous hollow palladium spheres prepared by templating method were studied. The experimental results reveal that porous hollow Pd spheres have superior hydrogen absorption kinetics than spongy Pd. A typically pressure hysteresis behavior can also be observed in the hydrogen absorption/desorption isotherm curves. Gibbs free energy loss ΔGloss correlation with pressure hysteresis of porous hollow Pd spheres is 4.3–4.8 kJ/mol, which is larger than spongy Pd and Monocrystal Pd. The special hollow structure and microstructure defects of Pd powder should be taken into account. Moreover, hydride formation enthalpy of porous hollow Pd spheres is smaller than spongy Pd and Pd black.
Sign-in/Register to access full text options 
Free) 
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 call
