Effect of Ethanol Treatment on Characteristics of Micro-Porous Silicon Based Hydrogen Fuel Cells


Yuksel S. , Dzhafarov T. D. , NUHOĞLU Ç. , Korpeoglu F. D. , Topkaya R.

ADVANCED POROUS MATERIALS, cilt.6, ss.45-48, 2018 (ESCI İndekslerine Giren Dergi)

Atıf İçin Kopyala
  • Cilt numarası: 6 Konu: 1
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1166/apm.2018.1145
  • Dergi Adı: ADVANCED POROUS MATERIALS
  • Sayfa Sayısı: ss.45-48

Özet

The objective of this paper is reporting the results on Fourier transform infrared (FTIR) and electron paramagnetic resonance (EPR) spectra of ethanol-treated micro porous silicon (PS) membrane and its influence on electrical parameters of Au/PS/Si direct ethanol fuel cells. PS layers have been prepared on n-type silicon using the anodic etching under illumination. PS/Si before Au deposition was kept in ethanol solution for 24 h to oxidize the extended pore surfaces. Increase of the open-circuit voltage and the short-circuit current for Au/PS/Si fuel cell with ethanol-treated PS membrane bed with ethanol by factor of 6-10 in compared to that of untreated membrane was observed. Improvement of the electrical parameters of Au/PS/Si cells is attributed to oxidized effect of ethanol treatment resulting in increased concentration of dangling bonds on pore surfaces and increase of proton conductivity of PS membrane.