Investigating the pseudo – Capacitive properties of interlayer engineered VOPO4 by organic molecule intercalation

Mawuse Amedzo-Adore, Jeong In Han

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The varying oxidation states of vanadium has given vanadium phosphate-based compounds a very rich chemistry, that has resulted in increasing interest in them for varying applications such as energy storage systems, including supercapacitors. Among them is vanadyl phosphates that exist in several polymorphs and have seen lots of research on their applications in alkali metal rechargeable batteries. Layered VOPO4 is of much interest due to its ability to undergo intercalation reaction. In this work, an organic molecule (triethylene glycol) was successfully intercalated into the layers of VOPO4 in a two-step solvothermal reaction. This approach resulted in exfoliation of VOPO4 layers leading to enlarged interlayer spacing, as well as enhancing the conductivity by reducing the band gap of the material.

Original languageEnglish
Pages (from-to)26226-26232
Number of pages7
JournalCeramics International
Volume48
Issue number18
DOIs
StatePublished - 15 Sep 2022

Keywords

  • Intercalation
  • Interlayer
  • Organic molecule
  • Supercapacitor
  • Triethylene glycol
  • Vanadyl phosphate

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