Layered Alkali Metal Titanate with the Staging Structure and Superior Electrochemical Performance.

ABSTRACT: We systematically explored the formation range of α-NaFeO₂-type layered titanate and its ion-exchange behaviors and electrochemical performance. The layered sodium titanate of Na_xTi_1-x/3Li_x/3O₂ at x = 0.68-0.70 was synthesized by the solid-state reaction at 900 °C. The titanate is composed of coplanar host layers with the α-NaFeO₂-type structure. The interlayer Na⁺ ions underwent a facile exchange with other alkali metal ions in aqueous solutions at 80 °C, accompanied by concurrent exchange with proton/oxonium ions. Powder X-ray diffraction data on the products and their Rietveld refinement revealed the formation of a unique staging-structured titanate, in which the interlayer galleries

SUBMITTER: Teepakakorn AP 

PROVIDER: S-EPMC12365883 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature