A Cyanide-Based Coordination Polymer for Hydrogen Evolution Electrocatalysis

Alsac E. P., Ulker E., Nune S. V. K., Karadas F.

CATALYSIS LETTERS, cilt.148, sa.2, ss.531-538, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 148 Sayı: 2
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1007/s10562-017-2271-6
  • Dergi Adı: CATALYSIS LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.531-538
  • Anahtar Kelimeler: Prussian blue, Cyanide, Water reduction, Hydrogen evolution, Electrocatalysis, WATER OXIDATION, HIGH-PRESSURE, FOSSIL-FUELS, COBALT, EFFICIENT, ADSORPTION, CATALYSTS, STORAGE, COMPLEXES, CATHODE
  • Recep Tayyip Erdoğan Üniversitesi Adresli: Evet

Özet

Research on H-2 production has recently been directed to the development of cost-efficient and robust heterogeneous catalysts for hydrogen evolution reaction (HER). Given the promising catalytic activities of several cobalt-based systems and the robustness of Prussian blue analogues in harsh catalytic processes including water oxidation, a Co-Co Prussian blue analogue was investigated as a HER catalyst for the first time. Co-Co Prussian Blue modified fluorine doped tin oxide (FTO) electrode demonstrated a significant HER activity with an onset overpotential of 257 mV, a Tafel slope of 80 mV dec(-1), and a turnover frequency of 0.090 s(-1) at an overpotential of 250 mV. Comparative XPS, Infrared, and XRD studies performed on pristine and post-catalytic electrodes confirm the stability of the catalyst.