Investigation of the electro-oxidation of artificial Black Sea water by cyclic voltammetry on molybdenum (II)

Sanli A. E., AYTAÇ A., Mat M.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.39, sa.17, ss.9221-9229, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 39 Sayı: 17
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.ijhydene.2014.03.047
  • Dergi Adı: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.9221-9229
  • Anahtar Kelimeler: Black Sea water, Hydrogen sulfide, Molybdenum sulfide catalyst, Electro-oxidation, SULFIDE, H2S, OXIDATION
  • Gazi Üniversitesi Adresli: Evet

Özet

The electro-oxidation of H2S in Black Sea water to generate electricity was investigated. MoS2 exhibited catalytic activity toward the oxidation of H2S in artificial sea water. The catalytic activity of molybdenum sulfide was found to depend on the electrolyte pH and on the temperature. Cyclic voltammograms taken in the artificial sea water containing hydrogen sulfide at pH = 14 exhibited a peak at 500 mV related to the oxidation of HS-. Furthermore, the peak current of the MoS2 electrode increased to 400 mA g(-1) from 250 mA g(-1) (approximately 1.6-fold) when the temperature was increased from 353 K to 363 K. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.