Abstract
In this study, a new surface structure named ‘net mosaic’ is found to enhance the resistance against poisoning of compound alloy. The structure is composed of palladium nanospheres and fluorinated layer. Hydrogen capacity and characteristics absorption rate of F-0.5%Pd-LaNi4.25Al0.75 alloy are 1.147wt% and 0.062wt%/s in impure hydrogen containing O2 and N2 both of 0.1 at% under initial pressure of 0.71 MPa at 30 °C, respectively, which is remarkably raised by 10% and 68% than that of LaNi4.25Al0.75 alloy. Synergistic effect from fluorination and palladium deposition is proposed to illustrate the excellent performance of F-0.5%Pd-LaNi4.25Al0.75 alloy.
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