Biomimetic Synthesis of Polydopamine Coated ZnFe₂O₄ Composites as Anode Materials for Lithium-Ion Batteries.

ABSTRACT: Metal oxides as anode materials for lithium storage suffer from poor cycling stability due to their conversion mechanisms. Here, we report an efficient biomimetic method to fabricate a conformal coating of conductive polymer on ZnFe₂O₄ nanoparticles, which shows outstanding electrochemical performance as anode material for lithium storage. Polydopamine (PDA) film, a bionic ionic permeable film, was successfully coated on the surfaces of ZnFe₂O₄ particles by the self-polymerization of dopamine in the presence of an alkaline buffer solution. The thickness of PDA coating layer was tunable by controlling the reaction time, and the obtained ZnFe₂O₄/PDA sample with 8 nm coating layer exhibited an outstanding electrochemical perfor

SUBMITTER: Yue H 

PROVIDER: S-EPMC6044608 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature