Graphitic carbon/porous silicon composite electrode for electric double-layer capacitor

  • Joybelle M. Lopez Materials Science and Engineering Program, University of the Philippines Diliman
  • Arven I. Cafe National Institute of Physics, University of the Philippines Diliman
  • Arnel A. Salvador National Institute of Physics, University of the Philippines Diliman Philippines
  • Elmer S. Estacio National Institute of Physics, University of the Philippines Diliman Philippines
  • Armando S. Somintac National Institute of Physics, University of the Philippines Diliman Philippines

Abstract

Carbon/porous silicon (C/PSi) composite film was successfully synthesized by thermal degradation of an acid-catalyzed furfuryl alcohol into mesoporous silicon template. The as-prepared PSi and C/PSi are investigated as an effective anode material for electric double-layer capacitor. PSi film is prepared via electrochemical anodization of highly-doped (p+) silicon. The capacitive current of C/PSi is ~1.5X that of PSi. In addition, the obtained gravimetric capacitances of PSi and C/PSi are 207.90 F kg-1 and 843.35 F kg-1, respectively. Enhanced electrochemical properties such as high specific capacitance and electrode-electrolyte stability are owed to the easily-controlled morphology of PSi template and high surface area of carbon. The results implied that the use of PSi as porous template for carbon infiltration yields a highly stable electrode for electric double-layer capacitors.

Published
2018-06-01
How to Cite
[1]
J. Lopez, A. Cafe, A. Salvador, E. Estacio, and A. Somintac. Graphitic carbon/porous silicon composite electrode for electric double-layer capacitor, Proceedings of the Samahang Pisika ng Pilipinas 36, SPP-2018-PA-50 (2018). URL: https://paperview.spp-online.org/proceedings/article/view/SPP-2018-PA-50.
Section
Poster Session A (Materials Science, Instrumentation, and Photonics)