The noble metal loading binary iron-zinc electrode for hydrogen production

Farsak M., Telli E., Yuce A. O., KARDAŞ G.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.42, no.10, pp.6455-6461, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 42 Issue: 10
  • Publication Date: 2017
  • Doi Number: 10.1016/j.ijhydene.2016.11.078
  • Journal Name: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.6455-6461
  • Keywords: Hydrogen production, Binary electrode, Cathode material, Electrodeposition, EVOLUTION REACTION, ELECTROCHEMICAL DEPOSITION, ELECTROCATALYTIC OXIDATION, NI, COATINGS, CATALYST, PERFORMANCE, FABRICATION, IMPEDANCE, CATHODES
  • Çukurova University Affiliated: Yes

Abstract

The binary FeZn was electrodeposited on graphite surface for hydrogen evolution reactions. Then, zinc was leached from the surface by an etching method in alkaline solution. A trace amount of platinum and ruthenium electrochemically deposited on binary FeZn, respectively. All electrodes were characterized by cyclic voltammetry, electrochemical impedance spectroscopy and potentiodynamic polarization techniquei in KOH solution. The surface structures were characterized by scanning electron microscopy and energy dispersive X-ray. The results show that etching process enhanced the surface area. The prepared electrodes exhibited much higher activity after noble metal loadings. It is seen from experimental research that the most active electrode is C@FeZn/Ru. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.