Poisoning Mechanism Map for Metal Hydride Hydrogen Storage Materials.

ABSTRACT: The effective utilization of hydrogen storage materials (HSMs) is hindered by impurity gas poisoning, posing a significant challenge for large-scale applications. This study elucidates the poisoning mechanisms of various impurities gases (CO, CO₂, O₂, Ar, He, CH₄, N₂) on ZrCo, Pd, U and LaNi₅. Impurities gases are categorized into active and inactive types based on their effecting behaviors and mechanisms on the hydrogenation of HSMs. During the hydrogenation process, active impurities chemically poison the hydrogenation reaction by limiting hydrogen absorption at interface, while inactive impurities physically hinder hydrogenation reaction by impeding hydrogen diffusion in hydrogen-impurity mixed gas. In situ Scanning Tunneling Micros

SUBMITTER: Bi J 

PROVIDER: S-EPMC11578344 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature