Electron-Extraction Engineering Induced 1T''-1T' Phase Transition of Re_0.75 V_0.25 Se₂ for Ultrafast Sodium Ion Storage.

ABSTRACT: Inducing new phases of transition metal dichalcogenides by controlling the d-electron-count has attracted much interest due to their novel structures and physicochemical properties. 1T'' ReSe₂ is a promising candidate for sodium storage, but the low electronic conductivity and limited active sites hinder its electrochemical capacity. Herein, new-phase 1T' Re_0.75 V_0.25 Se₂ crystals (P2/m) with zig-zag chains are successfully synthesized. The 1T''-1T' phase transition results from the electronic reorganization of 5d orbitals via electron extraction after V-atom doping. The electrical conductivity of 1T' Re_0.75 V_0.25 Se₂ is 2.7 × 10⁵ times higher than that of 1T'' ReSe₂ . Moreover, density funct

SUBMITTER: Fang Y 

PROVIDER: S-EPMC9798975 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature