Enhanced activity and durability of the oxygen reduction catalysts supported on the surface expanded tubular-type carbon nanofiber

Jiyoung Kim, Ui Su Im, Dong Hyun Peck, Seong Ho Yoon, Ho Seok Park, Doo Hwan Jung

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Tubular type carbon nanofibers (TCNFs) are prepared and used as a catalyst support material for a cathode electrode of low temperature fuel cells through structural modification. The pristine TCNF is treated by graphitization and makes partially torn-tube shape through the surface expansion by rapid thermal treatment of the oxidized graphitized TCNF. Physical properties of the TCNF group are examined, and it is confirmed that the unique ripped texture along fiber axis with graphitic structure is obtained by the surface expansion. Platinum catalysts supported on these TCNF group are prepared and evaluated. Electrochemical properties are examined via cyclic voltammograms and polarization curves for oxygen reduction reaction activity. The platinum catalyst on the surface expanded TCNF has the enhanced activity at initial and the stable performance even after accelerated durability test due to their unique structure.

Original languageEnglish
Pages (from-to)192-200
Number of pages9
JournalApplied Catalysis B: Environmental
Volume217
DOIs
Publication statusPublished - Jan 1 2017

Fingerprint

Carbon nanofibers
durability
Catalyst supports
Durability
catalyst
Oxygen
oxygen
carbon
Platinum
platinum
graphitization
Graphitization
fuel cell
Electrochemical properties
Fuel cells
electrode
Cathodes
polarization
Physical properties
Textures

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Environmental Science(all)
  • Process Chemistry and Technology

Cite this

Enhanced activity and durability of the oxygen reduction catalysts supported on the surface expanded tubular-type carbon nanofiber. / Kim, Jiyoung; Im, Ui Su; Peck, Dong Hyun; Yoon, Seong Ho; Park, Ho Seok; Jung, Doo Hwan.

In: Applied Catalysis B: Environmental, Vol. 217, 01.01.2017, p. 192-200.

Research output: Contribution to journalArticle

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