Loading…

In situ synthesis of manganese oxide/iron oxide/polyaniline composite catalyst for oxygen evolution reaction

Non-noble-metal-based electrocatalysts possessing high inherent activity toward the oxygen evolution reaction (OER) are highly desired. Considering the synergetic effect of different metal sites and the high conductivity of polyaniline (PANI), here we report polymer-based bimetallic ternary nanocomp...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials research 2024-03, Vol.39 (6), p.981-991
Main Authors: Farid, Muhammad Farhan, Rehman, Muhammad Usman Ur, Rehman, Junaid Ur, Sajjad, Wajid, Fazal, Muhammad Waseem, Khan, Muhammad Ali, Akhtar, Naeem
Format: Article
Language:English
Subjects:
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:Non-noble-metal-based electrocatalysts possessing high inherent activity toward the oxygen evolution reaction (OER) are highly desired. Considering the synergetic effect of different metal sites and the high conductivity of polyaniline (PANI), here we report polymer-based bimetallic ternary nanocomposite (Fe–Mn@PANI), which is synthesized by in situ polymerization method. Fe–Mn@PANI/NF has shown the best OER activity with lower onset potential (1.46 V vs RHE), low overpotential of 353 mV at 10 mA cm −2 , and Tafel slope of 68 mV dec −1 . The remarkable outcomes can be attributed to the synergistic effect of the two distinct metals and PANI, which particularly has a unique π-conjugated structure and abundant nitrogen species with lone pairs of electrons providing a consistent flow of ions across entire surface of composite and also improving OH − adsorption capacity which makes it a highly efficient, cost-effective, and stable catalyst with improved performance of the OER. Graphical abstract
ISSN:0884-2914
2044-5326
DOI:10.1557/s43578-024-01286-9