Articles
  • Citric acid stabilized iron oxide nanoparticles for battery-type supercapacitor electrode 

  • Seungil Parka, C. Justin Raja, Ramu Manikandanb, Byung Chul Kimb and Kook Hyun Yua,*

  • aDepartment of Chemistry, Dongguk University, Jung-gu, Seoul-04620, Republic of Korea
    bDepartment of Printed Electronics Engineering, Sunchon National University, 255, Jungang-ro, Suncheon-si, Jellanamdo 57922, Republic of Korea

Abstract

We report the synthesis of citrate stabilized iron oxide (C-Fe3O4) spherical nanoparticles for supercapacitor electrodes. The citrate functional group present in the surface of the Fe3O4 nanoparticles effectively controls the morphology and the surface area of the nanostructures. The C-Fe3O4 electrodes exhibited a battery-like energy storage properties with a maximum specific capacity of 146 Cg-1 (242 Fg-1) which is much higher than the specific capacity of citrate free Fe3O4 electrode (62 Cg-1; 112 Fg-1). Moreover, the C-Fe3O4 electrode showed better cyclic stability (75%) than the citrate free Fe3O4 electrode (~35%) after 1000 charge/discharge cycles.


Keywords: Ion oxide, Nanoparticle, Supercapacitor 

This Article

  • 2020; 21(2): 278-283

    Published on Apr 30, 2020

  • 10.36410/jcpr.2020.21.2.278
  • Received on Dec 23, 2019
  • Revised on Jan 23, 2020
  • Accepted on Feb 7, 2020

Correspondence to

  • Kook Hyun Yu

  • Department of Chemistry, Dongguk University, Jung-gu, Seoul-04620, Republic of Korea
    Tel : +82 2 2260 3709 Fax: +82 2 2268 8204

  • E-mail: yukook@dongguk.edu