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

Authors

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

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.

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Issue

2018: Proceedings of the 36th Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2018-PA-50

Section

Poster Session A (Materials Science, Instrumentation, and Photonics)

Published

2018-06-01

How to Cite

[1]

JM Lopez, AI Cafe, AA Salvador, ES Estacio, and AS 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://proceedings.spp-online.org/article/view/SPP-2018-PA-50.