Development of nitrogen-doped carbons using the hydrothermal method as electrode materials for vanadium redox flow batteries

Hokyun Lee, Hansung Kim

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21 Citations (Scopus)

Abstract

Nitrogen-doped carbons are suggested as elec-trochemically active materials for V(IV)/V(V) redox couples for a vanadium redox flow battery (VRB). These materials were synthesized using a hydrothermal reaction of aqueous glucose solution in the presence of ethylenediamine as a nitrogen source. The physical and electrochemical properties of the nitrogen-doped carbons are characterized by cyclic voltammetry, high-resolution transmission electron microscopy and X-ray photoelectron spectrometry. These results reveal that the hydrothermal method is an effective way to synthesize high-content nitrogen-doped carbons. Nitrogen doping significantly improves catalytic activity and reversibility. Therefore, use of nitrogen-doped carbon is expected to increase the energy storage efficiency of VRBs.

Original languageEnglish
Pages (from-to)553-557
Number of pages5
JournalJournal of Applied Electrochemistry
Volume43
Issue number5
DOIs
Publication statusPublished - 2013 Mar 26

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All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry
  • Materials Chemistry

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