Influences of sodium borohydride concentration on direct borohydride fuel cell performance

ÇELİK C., SAN F. G. B., SARAÇ H. İ.

JOURNAL OF POWER SOURCES, cilt.195, sa.9, ss.2599-2603, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 195 Sayı: 9
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.jpowsour.2009.11.093
  • Dergi Adı: JOURNAL OF POWER SOURCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2599-2603
  • Anahtar Kelimeler: Direct borohydride fuel cell, Sodium borohydride concentration, Oxidation, Fuel cell, OPERATION CONDITIONS, OXIDATION, AU
  • Kocaeli Üniversitesi Adresli: Evet

Özet

In this work, the effects of sodium borohydride concentration on the performance of direct borohydride fuel cell, which consisted of Pd/C anode, Pt/C cathode and Na(+) form Nafion (R) membrane as the electrolyte, have been investigated in steady state/steady-flow and uniform state/uniform-flow systems. The experimental results have revealed that the power density increased as the sodium borohydride concentration increased in the SSSF system. Peak power densities of 7.1, 10.1 and 11.7 MW cm(-2) have been obtained at 0.5, 1 and 1.5 M. respectively. However, the performance has decreased when the sodium borohydride concentration has been increased. and the fuel utilization ratios of 29.8%, 21.6% and 20.4% have been obtained at 0.5, 1 and 1.5 M, respectively in the USUF system. (C) 2009 Elsevier B.V. All rights reserved.