Synergetic Effect of Mo-Doped and Oxygen Vacancies Endows Vanadium Oxide with High-Rate and Long-Life for Aqueous Zinc Ion Battery.

ABSTRACT: Vanadium (V)-based oxides have garnered significant attention as cathode materials for aqueous zinc-ion batteries (AZIBs) due to their multiple valences and high theoretical capacity. However, their sluggish kinetics and low conductivity remain major obstacles to practical applications. In this study, Mo-doped V₂O₃ with oxygen vacancies (OVs, Mo-V₂O_3-x@NC) is prepared from a Mo-doped V-metal organic framework. Ex situ characterizations reveal that the cathode undergoes an irreversible phase transformation from Mo-V₂O_3-x to Mo-V₂O_5-x·nH₂O and serves as an active material exhibiting excellent Zn²⁺ storage in subsequent charge-discharge cycles. Mo-doped helps to further improve cyclin

SUBMITTER: Chen D 

PROVIDER: S-EPMC11600703 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature