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MOF derived ZnSe–FeSe2/RGO Nanocomposites with enhanced sodium/potassium storage

  • Jujun Yuan
  • , Wen Liu
  • , Xianke Zhang
  • , Yaohui Zhang
  • , Wentao Yang
  • , Weidong Lai
  • , Xiaokang Li
  • , Jiujun Zhang
  • , Xifei Li*
  • *Corresponding author for this work
  • Gannan Normal University
  • Xi'an University of Technology
  • School of Physics, Harbin Institute of Technology
  • Shanghai University
  • Zhengzhou University

Research output: Contribution to journalArticlepeer-review

Abstract

ZnSe–FeSe2/reduced graphene oxide (RGO) composites are synthesized through a rational strategy using Fe/Zn-MOF-5 as a template. Compared with the ZnSe/RGO or FeSe2/RGO composites, the ZnSe–FeSe2/RGO anode electrode exhibits a higher reversible capacity (439 mAh g−1 after 100 cycles at 100 mA g−1) for sodium ion batteries (SIBs). The excellent electrochemical performance of ZnSe–FeSe2/RGO composites can be attributed to the synergistic effects of the unique architecture, where ZnSe is responsible for providing a high capacity, FeSe2 improves the electrochemical stability, and RGO is beneficial for enhancing the charge transfer behavior. Furthermore, the ZnSe–FeSe2/RGO anode reveals stable reversible capacity (363 mAh g−1 after 100 cycles at 50 mA g−1) for potassium ion batteries (KIBs).

Original languageEnglish
Article number227937
JournalJournal of Power Sources
Volume455
DOIs
StatePublished - 15 Apr 2020
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Anode material
  • Fe/Zn-MOF-5 template
  • Potassium ion batteries
  • Sodium ion batteries
  • ZnSe-FeSe/RGO nanocomposites

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