The electrocatalytic properties of lithium copper composite in the oxygen reduction reaction

Farsak M., Telli E., Tezcan F., Akgul F. S., Yuce A. O., KARDAŞ G.

ELECTROCHIMICA ACTA, vol.148, pp.276-282, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 148
  • Publication Date: 2014
  • Doi Number: 10.1016/j.electacta.2014.10.066
  • Journal Name: ELECTROCHIMICA ACTA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.276-282
  • Keywords: Oxygen reduction reaction, catalyst, lithium, copper, TEM, LI-AIR BATTERIES, EFFICIENT BIFUNCTIONAL CATALYST, NONAQUEOUS LI-O-2 BATTERIES, CATHODE MATERIAL, ELECTROCHEMICAL PERFORMANCE, SPRAY-PYROLYSIS, ION BATTERY, CARBON, ELECTRODES, NANOPARTICLES
  • Çukurova University Affiliated: Yes

Abstract

A new carbon supported lithium-copper cathode catalyst (gel@LiCu) is composed of activated carbon (@) supported gel, LiNO3 and CuCl2 mixture is investigated in the oxygen reduction reaction. The gel@LiCu cathode, which is selected from different configurations of electrodes, is found to have the best material for the cathode. The molar ratio of lithium-copper (1.0:1.5) and the amount of glycine given in terms of grams are determined in order to find the most active material. The catalytic activity of the gel@LiCu electrode is evaluated by cyclic voltammetry, potentiodynamic polarization and electrochemical impedance spectroscopy techniques. The morphology and the phase structure of the gel@LiCu electrode are characterized with scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) spectrometer. The catalyst shows good catalytic activity for oxygen reduction reaction (ORR), as well as oxygen evolution reaction (OER). (C) 2014 Elsevier Ltd. All rights reserved.