High-Rate One-Dimensional α-MnO₂ Anode for Lithium-Ion Batteries: Impact of Polymorphic and Crystallographic Features on Lithium Storage.

ABSTRACT: Manganese dioxide (MnO₂) exists in a variety of polymorphs and crystallographic structures. The electrochemical performance of Li storage can vary depending on the polymorph and the morphology. In this study, we present a new approach to fabricate polymorph- and aspect-ratio-controlled α-MnO₂ nanorods. First, δ-MnO₂ nanoparticles were synthesized using a solution plasma process assisted by three types of sugars (sucrose, glucose, and fructose) as reducing promoters; this revealed different morphologies depending on the nucleation rate and reaction time from the molecular structure of the sugars. Based on the morphology of δ-MnO₂, the polymorphic-transformed three types of α-MnO₂ nanorods showed different aspect ratios (c/a), whi

SUBMITTER: Kim HM 

PROVIDER: S-EPMC10609827 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature