Recovery of NaBH4 from BH3OH- hydrolyzed intermediate on the AgI surface treated with different electrochemical methods

Sanli A. E., AYTAÇ A., Uysal B. Z., Aksu M. L.

CATALYSIS TODAY, cilt.170, sa.1, ss.120-125, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 170 Sayı: 1
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.cattod.2010.12.024
  • Dergi Adı: CATALYSIS TODAY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.120-125
  • Gazi Üniversitesi Adresli: Evet

Özet

This paper presents the investigation of the activity of silver electrode treated by cyclic voltammetric (CV) method with H2O2 + KI in aqueous solution on the oxidation of NaBH4. Among the various treatment solutions investigated, H2O2 + KI solution shows the best performance with the maximum catalytic activity. CV treatment in H2O2 + KI on Ag electrode improves the catalytic activity more than bulk electrolysis (BE) due to increase in surface porosity. Apart from the catalytic effect of this surface in the oxidation of BH4- it was also observed that there is a formation of hydrolysis product of BH3OH- of BH4- during the anodic scan between -0.25 and -0.45 V which is seen to be converted back to BH4- during the cathodic scan. (C) 2010 Elsevier B.V. All rights reserved.