Boosting the capacity and stability of a MoO₃ cathode via valence regulation and polypyrrole coating for a rechargeable Zn ion battery.

ABSTRACT: Molybdenum trioxide (MoO₃) is emerging as a hugely competitive cathode material for aqueous zinc ion batteries (ZIBs) for its high theoretical capacity and electrochemical activity. Nevertheless, owing to its undesirable electronic transport capability and poor structural stability, the practical capacity and cycling performance of MoO₃ are yet unsatisfactory, which greatly blocks its commercial use. In this work, we report an effective approach to first synthesise nanosized MoO_3-x materials to provide more active specific surface areas, while improving the capacity and cycle life of MoO₃ by introducing low valence Mo and coated polypyrrole (PPy). MoO₃ nanoparticles with low-valence-state Mo and PPy coating (denoted as MoO₃

SUBMITTER: He Y 

PROVIDER: S-EPMC10196885 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature