Development of carbon felt electrode using urea for vanadium redox flow batteries

So Yeon Kim, Hansung Kim

Research output: Contribution to journalArticle

Abstract

In this study, nitrogen doped carbon felt was prepared by pyrolysis of urea at high temperature and applied as an electrode for vanadium redox flow cell. Urea is easier to handle than ammonia and forms NH2 radicals at higher temperatures, creating a nitrogen functional group on the carbon surface and acting as an active site in the vanadium redox reaction. Therefore, the discharge capacity of activated carbon felt electrodes using urea was 14.9 Ah/L at a current density of 150 mA/cm2, which is 23% and 187% higher than OGF and GF, respectively. These results show the possibility that activated carbon felt electrode using urea can be used as electrode material for redox flow battery.

Original languageEnglish
Pages (from-to)408-412
Number of pages5
JournalKorean Chemical Engineering Research
Volume57
Issue number3
DOIs
Publication statusPublished - 2019 Jan 1

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Urea electrodes
Vanadium
Urea
Activated carbon
Carbon
Nitrogen
Electrodes
Redox reactions
Ammonia
Functional groups
Pyrolysis
Current density
Temperature
carbon fiber
Flow batteries

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)

Cite this

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Development of carbon felt electrode using urea for vanadium redox flow batteries. / Kim, So Yeon; Kim, Hansung.

In: Korean Chemical Engineering Research, Vol. 57, No. 3, 01.01.2019, p. 408-412.

Research output: Contribution to journalArticle

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