NiFe Layered Double Hydroxide Electrocatalyst Prepared via an Electrochemical Deposition Method for the Oxygen Evolution Reaction

Murugesan Praveen Kumar, Moorthy Sasikumar, Arunachalam Arulraj, Venugopalan Rajasudha, Govindhasamy Murugadoss, Manavalan Rajesh Kumar, Shaik Gouse Peera, Ramalinga Viswanathan Mangalaraja

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Herein, we aimed to obtain NiFe layered double hydroxide (LDH) with a controlled phase and surface morphology as a highly active and stable oxygen evolution catalyst via the electrochemical deposition method, which was thermodynamically stable for the oxygen evolution reaction (OER) in an alkaline medium. The NiFe-LDH sample was analyzed by sophisticated instruments and tested as an electrocatalyst on Toray carbon (TC). The NiFe-LDH electrocatalyst showed an excellent performance with lower overpotential of 0.27 V at 35 mA cm−2 and higher density of 125 mA cm−2 for OER in the 1 M KOH electrolyte solution. Moreover, the prepared catalyst exhibited unpredictable long-time stability for 700 h. From our knowledge, NiFe-LDH is a robust highly stable electrocatalyst compared to the recent reports.

Original languageEnglish
Article number1470
JournalCatalysts
Volume12
Issue number11
DOIs
StatePublished - Nov 2022
Externally publishedYes

Keywords

  • (Oxy)hydroxides phases
  • NiFe-LDH electrocatalyst
  • OER
  • electrochemical deposition
  • long-time stability

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