Balanced Iodophilicity and Solvophilicity Unlocks Fast Iodine Conversion Chemistry.

ABSTRACT: The shuttling of polyiodides and sluggish redox kinetics greatly hinder the implementation of an aqueous Zn-I₂ battery. Despite numerous catalysts have been implemented to improve the iodine cathode stability, an important aspect, the balance between polyiodide adsorption and interfacial mass transport kinetics at the cathode surface, has been overlooked. It is known that insufficient intermediate trapping ability will cause low iodine utilization and fast capacity decay. However, excessive adsorption of iodine species will block the ion transport and lead to passivation of the catalyst, which is particularly serious under lean-electrolyte and high mass loading conditions. To tackle this challenge, we employ a dual single atomic catalyst encompassing NiN₄P and FeN

SUBMITTER: Xiao T 

PROVIDER: S-EPMC12356581 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature