Designing Trimetallic CoNiFeMOF Synthesized by Electrochemical and Solvothermal Methods and Direct Use Towards Efficient Oxygen Evolution Reaction

Designing a highly efficient and low-cost electrocatalyst for producing hydrogen and oxygen gas as renewable energy through water splitting is essential. Recently, metal–organic frameworks (MOFs) have emerged as decent catalysts with several advantages and better performance than other electrocataly...

Full description

Saved in:
Bibliographic Details
Published in:Journal of electronic materials 2023-06, Vol.52 (6), p.3877-3891
Main Authors: Sayadi, P., Zeinali, S., Momeni, S., NamiAna, S. F., Tohidi, M.
Format: Article
Language:English
Subjects:
Alternative energy sources
Bimetals
Characterization and Evaluation of Materials
Chemistry and Materials Science
Electrocatalysts
Electronics and Microelectronics
Ethanol
Gases
Hydrogen
Hydrogen production
Instrumentation
Iron
Materials Science
Metal-organic frameworks
Metals
Methods
Optical and Electronic Materials
Original Research Article
Oxygen evolution reactions
Porous materials
Solid State Physics
Water splitting
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Designing a highly efficient and low-cost electrocatalyst for producing hydrogen and oxygen gas as renewable energy through water splitting is essential. Recently, metal–organic frameworks (MOFs) have emerged as decent catalysts with several advantages and better performance than other electrocatalysts. MOFs have been applied for oxygen evolution reaction (OER) to reduce the required energy and increase the kinetic of the reaction. Here, CoNiFeMOFs were successfully synthesized by both solvothermal and electrochemical methods. MIL-101(Fe) was selected as a primary MOF and different cobalt and nickel ratios were optimized for both bimetallic and trimetallic ones. Then, they have been employed as electrocatalysts for OER in 1.0 M KOH solution. Trimetallic MOFs exhibited noticeable electrocatalytic behavior. The over-potentials, at a constant current density of 10 mA cm −2 , and Tafel slopes of S-CoNiFeMOF1 and E-CoNiFeMOF2, were equal to 300 mV, 40.9 mV dec −1 , and 320 mV, 41.2 mV dec −1 , respectively, showing the best electrocatalytic performance towards OER among other synthesized MOFs. Finally, the durability of these electrocatalysts was investigated through a chronoamperometric test in which they exhibited good stability for 12 h. Graphical Abstract
ISSN:0361-5235
1543-186X
DOI:10.1007/s11664-023-10331-y