Jump to main content
Jump to site search


FeNi3 Modified Fe2O3/NiO/MoO2 Heterogeneous Nanoparticles Immobilized N, P co-doped CNT as Efficient and Stable Electrocatalyst for Water Oxidation

Abstract

As a rate-determining step, electrocatalytic water oxidation acts a pivotal role in water splitting process. As a consequence, it is of great significance to explore low-cost, efficient and durable electrocatalysts for oxygen evolution reaction (OER) to promote electrocatalytic splitting water. Herein, for the first time, FeNi3 modified Fe2O3/NiO/MoO2 heterogeneous nanoparticles immobilized N, P co-doped CNT matrix materials (FNM/NPCNT) are synthesized by a facile solid-phase grinding the precursor composed of nickel hexacyanoferrate/phosphomolybdic acid/CNT and subsequently pyrolyzing under the nitrogen atmospheres without any further post-processing. Due to its significant promotion of the charge transfer efficiency and preventing the metallic based catalysts from being corroded, as-prepared FNM/NPCNT hybrid electrocatalyst shows a high OER activity with a low overpotential of 282 mV vs. RHE at 10 mA cm-2 and a small Tafel slope of 46.2 mV dec-1 in alkaline electrolyte. Moreover, the as-prepared FNM/NPCNT hybrid delivers a greatly large mass activity of 327.6 A g-1 at the potential of 1.7 V and excellent stability (more than 20 h). This study opens up a new approach to design and synthesize nonprecious transition metal based composite immobilized N, P co-doped CNT materials as OER catalysts with high efficiency and long-term stability for promoting water splitting.

Back to tab navigation

Supplementary files

Article information


Submitted
06 Nov 2019
Accepted
13 Jan 2020
First published
13 Jan 2020

Nanoscale, 2020, Accepted Manuscript
Article type
Paper

FeNi3 Modified Fe2O3/NiO/MoO2 Heterogeneous Nanoparticles Immobilized N, P co-doped CNT as Efficient and Stable Electrocatalyst for Water Oxidation

X. Zhang, Y. Chen, M. Chen, B. Wang, B. Yu, X. Wang, W. Zhang and D. Yang, Nanoscale, 2020, Accepted Manuscript , DOI: 10.1039/C9NR09460A

Social activity

Search articles by author

Spotlight

Advertisements