Layered Manganese Dioxide Thin Films Intercalated with Ag⁺ Ions Reduceable In Situ for Oxygen Reduction Reaction.

ABSTRACT: The purpose of this study is to propose a new strategy based on electrodeposition to create binder-free composites of metallic silver supported on MnO₂. The process involves in situ reduction of the Ag⁺ ions incorporated in the interlayer spaces of layered MnO₂ in an alkaline electrolyte without Ag⁺ ions. The reduction process of the incorporated Ag⁺ was monitored in situ based on the characteristic surface plasmon resonance in the visible region, and the resulting metallic Ag was identified by X-ray photoelectron spectroscopy. Because the formation of metallic Ag is only possible via electron injection into the Ag⁺ ions between MnO₂ layers, the growth of Ag metals was inevitably limited, alth

SUBMITTER: Marukawa R 

PROVIDER: S-EPMC9097203 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature