Improving the direct borohydride fuel cell performance with thiourea as the additive in the sodium borohydride solution


ÇELİK C. , SAN F. G. B. , SARAÇ H. İ.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.35, ss.8678-8682, 2010 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 35 Konu: 16
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.ijhydene.2010.04.150
  • Dergi Adı: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Sayfa Sayıları: ss.8678-8682

Özet

In this study, the effects of the additive thiourea (TU) have been investigated under steady state/steady-flow and uniform state/uniform-flow systems with the aim of minimizing the anodic hydrogen evolution on Pd in order to increase the performance of a direct borohydride fuel cell. The fuel cell has consisted of Pd/C anode, Pt/C cathode and Na(+) form Nafion membrane as the electrolyte. There has been a small improvement in peak power density and fuel utilization ratio by addition of TU (1.6 x 10(-3) M) into the sodium borohydride solution; the peak power densities of 14.4 and 15.1 mW cm(-2), and fuel utilization ratios of 21.6% and 23.2% have been obtained without and with TU, respectively. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.