Anodic behavior of Ag metal electrode in direct borohydride fuel cells

Sanli E., Celikkan H., Uysal B. Z., Aksu M. L.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.31, sa.13, ss.1920-1924, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 31 Sayı: 13
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1016/j.ijhydene.2006.04.003
  • Dergi Adı: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1920-1924
  • Anahtar Kelimeler: borohydride fuel cells, Ag anode, catalytic effect, ALKALINE-SOLUTION, ELECTROCATALYTIC PROPERTIES, SODIUM-BOROHYDRIDE, NOBLE-METALS, ELECTROOXIDATION, SILVER, OXIDATION, METHANOL, OXIDES
  • Gazi Üniversitesi Adresli: Evet

Özet

The performance of alkaline borohydrides on Ag anode was tested in a three-electrode system in this research. The anode compartment was separated from other compartments by Nafion 117 membranes. It was observed that the cell potential increased with increasing BH4- concentration. When CV graphs of clean and oxidized Ag surfaces were examined and it was determined that Ag oxide layers formed on the Ag surfaces in alkaline media had different catalytic effects on the oxidation of borohydride. The number of electrons transferred was found as 6 (5.55) after coulometric studies. (c) 2006 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.