Performance Improvement of Polysulfone Membrane Fillered by Nanosilica Boiler Ash Sugarcane Industry on Direct Methanol Fuel Cell

Authors

  • Illah Sailah Department of Agroindustrial Technology, Bogor Agricultural University, Bogor 16680, Indonesia
  • Andes Ismayana Department of Agroindustrial Technology, Bogor Agricultural University, Bogor 16680, Indonesia
  • Akhiruddin Maddu Department of Physics, Bogor Agricultural University, Bogor 16680, Indonesia
  • Tyara Puspaningrum Department of Agroindustrial Technology, Bogor Agricultural University, Bogor 16680, Indonesia
  • Angga Yuhistira Aryanto Department of Agroindustrial Technology, Bogor Agricultural University, Bogor 16680, Indonesia
  • Nastiti Siswi Indrasti Department of Agroindustrial Technology, Bogor Agricultural University, Bogor 16680, Indonesia

Keywords:

boiler ash, direct methanol fuel cell, membrane electrode assembly, nanosilica, polysulfone.

Abstract

Nanosilica from boiler ash sugarcane indutry can be utilized as filler for electrolyte membrane as it could increase hydrophilicity and performances. Electrolyte membrane is the key component of direct methanol fuel cell (DMFC). Polysulfone-nanosilica membrane has been developed to replace expensive nafion membrane. The objectives of this research were to analyze the effects of H2SO4 concentration of 1.5 M, 2 M, and 2.5 M as sulfonating agent for  polysulfone and the effects of Ag/ C or Cu/ C catalyst  on membrane electrode assembly (MEA) performances. The sulfonation degree of polysulfone were increased with increased of H2SO4 concentration. Sulfonated polysulfone membrane with H2SO4 2.5 M concentration gave the highest performances for this research with water uptake of 45.72%, methanol uptake of 28.33%, methanol permeability of 6.97x10 -5 cm2/s, proton conductivity of 6.55x10-3 S/cm, and potential difference of 66.70 mV. Fabrication of MEA with Cu/C and Ag/C catalyst also increased proton conductivity and potential difference significanly. MEA 20% Ag/C catalyst gave proton conductivity of 23.79x10-3 S/cm and potential difference of 281 mV MEA which were better than 20% Cu/C catalyst and electrolyte membrane without catalyst.

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Published

2018-01-15

How to Cite

Sailah, I., Ismayana, A., Maddu, A., Puspaningrum, T., Aryanto, A. Y., & Indrasti, N. S. (2018). Performance Improvement of Polysulfone Membrane Fillered by Nanosilica Boiler Ash Sugarcane Industry on Direct Methanol Fuel Cell. International Journal of Sciences: Basic and Applied Research (IJSBAR), 37(1), 101–111. Retrieved from https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/8575

Issue

Vol. 37 No. 1 (2018)

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Articles

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