α-MnO/FeCo-LDH on Nickel Foam As an Efficient Electrocatalyst for Water Oxidation

Overview

Journal ACS Omega

Publisher American Chemical Society

Specialty Chemistry

Date 2023 Jan 16

PMID 36643503

Authors

Saeedeh Shahparast

Karim Asadpour-Zeynali

Affiliations

Soon will be listed here.

Abstract

The ever-expanding human societies on the one hand and the diminishing fossil fuel resources on the other have driven man to find a suitable, cheap, clean, and accessible source of energy. Water splitting is a good solution to this crisis. Because of the slow kinetics of water oxidation reaction, it is important to select efficient and durable electrocatalysts to improve the reaction kinetics. In this research, α-MnO/FeCo-LDH catalysts on nickel foam were developed for water oxidation, which exhibited good catalytic performance and stability in a 0.1 M KOH solution. The electrocatalysts were synthesized by hydrothermal methods and characterized by XRD, FTIR, Raman, SEM, TEM, EDS, and MAP techniques. The proposed modified electrode has large exchange current, low overpotential, and small Tafel slope. Here, only an overpotential of 210 mV is required to achieve a current density of 5 mA cm with a Tafel slope of 70.4 mV dec in an alkaline solution.

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