Siam Physics Congress 2015

Synthesis of Carbon-Encapsulated Fe${}_3$O${}_4$ for Supercapacitors Electrode

21 May 2015, 08:15

15m

Phokeethra Grand Ballroom

Oral presentation Material Physics, Nanoscale Physics and Nanotechnology Material Physics, Nanoscale Physics and Nanotechnology

Speaker

Mr Nattapon Kasangam (Department of Physics, Faculty of Science, Khonkaen University, Khonkaen, THAILAND 40002)

Description

In this project, carbon encapsulated Fe${}_3$O${}_4$ for supercapacitors electrode was synthesized using Fe${}_3$(No${}_3$)${}_3$ 9H${}_2$O and C${}_6$H${}_1{}_2$O${}_6$ as precursors and NaCl as supporting material. The mixture was annealed at 700 ${}^{\circ}$C, 720 ${}^{\circ}$C, 750 ${}^{\circ}$C and 770 ${}^{\circ}$C in argon atmosphere for 2 hours and heated at 250 ${}^{\circ}$C in air for 6 hours. The results showed that the supercapacitors with carbon encapsulated Fe${}_3$O${}_4$ had the maximum specific capacitance of 48.5 F/g in 1 M of Na${}_2$SO${}_4$ aqueous electrolyte. This could be attributed to a good electrical conductivity of carbon and the promotion of redox reaction in Fe${}_3$O${}_4$.