Ceria supported ruthenium(0) nanoparticles: Highly efficient catalysts in oxygen evolution reaction

DEMİR ARABACI E., AKBAYRAK S., ÖNAL A. M., ÖZKAR S.

JOURNAL OF COLLOID AND INTERFACE SCIENCE, vol.534, pp.704-710, 2019 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 534
  • Publication Date: 2019
  • Doi Number: 10.1016/j.jcis.2018.09.075
  • Journal Name: JOURNAL OF COLLOID AND INTERFACE SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.704-710
  • Keywords: Ceria, Ruthenium, Oxygen evolution, Water splitting, Electrocatalyst, HYDROGEN EVOLUTION, BIFUNCTIONAL ELECTROCATALYST, FUEL-CELL, REUSABLE CATALYST, NANOWIRE ARRAYS, WATER, OXIDE, GENERATION, HYDROLYSIS, NANOSHEETS
  • Middle East Technical University Affiliated: Yes

Abstract

Ruthenium(0) nanoparticles were successfully prepared on the surface of ceria (Ru-0/CeO2) and used as catalysts on glassy carbon electrode (GCE) in oxygen evolution reaction (OER) from water electrolysis at room temperature. Ru-0/CeO2 on GCE exhibits high catalytic activity for OER in alkaline solution. It provides a low onset potential of 1.57 V vs. RHE and low overpotential of 420 mV vs. RHE to reach a current density of 10 mA cm(-2). Ru-0/CeO2 on GCE shows no change in the onset potential value even after 6.1 h electrochemical measurement in OER. (C) 2018 Elsevier Inc. All rights reserved.