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    • Zeolitic imidazolate framework-67 derivative/TiO$_2$ composite coating as an integrated anode for lithium-ion batteries

      QI YANG YUJIAO XU

      Volume 46 Published: 19 May 2023 Article ID 0102

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/046/0102

    • Keywords

       

      Metal organic frame; derivative; TiO$_2$; integrated electrode; lithium-ion battery.

    • Abstract

       

      In this study, Cu-supported ZIF-67 derivative/TiO$_2$ composite coating was synthesized to increase the conductivity and capacity of TiO$_2$ and apply the ZIF-67 derivative with excellent electrochemical performance to the integrated anode for lithium-ion batteries (LIBs). The hydrolysis of tetrabutyl titanate in air will produce TiO$_2$; while the sintering of ZIF-67 in an inert atmosphere will form CoO/C composite. The Cu-supported ZIF-67 derivative/TiO$_2$ composite coating can be directly employed as an integrated anode for LIBs. It delivers a capacity of 649 mAh g$^{-1}$ after 500 cycles at a high current density of 1000 mA g${-1}$. Even at a high current density of 2000 mA g${-1}$, it still maintains a capacity of 445 mAh g$^{-1}$. The good electrochemical performance of the Cu-supported ZIF-67 derivative/TiO$_2$ composite coating is mainly attributed to the good conductivity and excellent electrochemical properties of ZIF-67, the inhibition of TiO$_2$ on reduction of CoO, and the steric hindrance effect of TiO$_2$ on ZIF-67 particles.

    • Author Affiliations

       

      QI YANG1 YUJIAO XU

      1. School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

    • Dates

       
      Published
      19 May 2023
      Manuscript received
      20 October 2022
      Accepted
      22 January 2023
      Final version published online
      19 May 2023

    • Supplementary Material

       

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