Facile synthesis of iron-ruthenium bimetallic oxide nanoparticles on carbon nanotube composites by liquid phase plasma method for supercapacitor

Won June Lee, Sangmin Jeong, Heon Lee, Byung Joo Kim, Kay Hyeok An, Young Kwon Park, Sang Chul Jung

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

Iron-ruthenium bimetallic oxide nanoparticles were precipitated on carbon nanotubes by liquid-phase plasma method. We also evaluated the physicochemical and electrochemical properties of prepared composite for supercapacitor electrode. Polycrystalline about 10 to 25 nm-sized bimetallic nanoparticles were evenly precipitated on the carbon nanotube (CNT) and consisted of Fe3+ and Ru4+. Bimetallic oxide nanoparticles’ composition depended on the ratio of the metal precursor concentration and standard reduction potential. The C-V area and specific capacitance of iron-ruthenium oxide nanoparticle/carbon nanotube (IRCNT) composite electrodes was higher than that of untreated CNT electrode, and increased with increasing ruthenium content. The cycling stability of IRCNT composite electrode was higher than untreated CNT electrode, especially iron element was more stable.

Original languageEnglish
Pages (from-to)2993-2998
Number of pages6
JournalKorean Journal of Chemical Engineering
Volume34
Issue number11
DOIs
StatePublished - 1 Nov 2017

Keywords

  • Bimetallic Oxide Nanoparticle
  • Iron
  • Liquid Phase Plasma
  • Ruthenium
  • Specific Capacitance

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