Hydrogen Absorption into and Subsequent Diffusion Through Hydride-Forming Metals

摘要: In most theoretical and experimental investigations, it has been assumed that the rate-determining step (RDS) of hydrogen insertion (intercalation, ingress, cathodic charging/injection/introduction) into desertion (deintercalation, egress, anodic extraction) from hydride-forming electrodes is diffusion through electrode. practice, however, rate electrode simultaneously determined by rates two or more reaction steps, such as ion transport electrolyte migration (ohmic potential drop), interfacial charge (electron) transfer (cathodic discharge ions), transfer, subsequent [1]. The RDS series-connected overall defined strongly impeded/disturbed “slowest” deviating far its thermodynamic equilibrium state represents highest overpotential and/or impedance pertaining to step. this respect, mechanism a extensively studied.