Jump to main content
Jump to site search


Interface modulation of a layer-by-layer electrodeposited FexCo(1−x)P/NiP@CC heterostructure for high-performance oxygen evolution reaction

Author affiliations

Abstract

The search for an oxygen evolution reaction (OER) electrocatalyst with much improved performance is ongoing. The development and design of highly active, noble-metal free and low cost electrocatalysts is of great importance for the realization of renewable energy. Herein, a carbon cloth (CC) supported iron doped cobalt phosphide, layered-with a nickel phosphide film (Fe0.45Co0.55P/NiP@CC) was synthesized with a simple two step electrochemical deposition technique at room temperature. This free-standing Fe0.45Co0.55P/NiP@CC heterostructure presents superior OER performance in an alkaline media, with a strikingly low onset potential of 1.26 V and achieving a current density of 10 mA cm−2 at an overpotential of 247 mV vs. RHE in 1 M KOH, outperforming the state of the art RuO2 electrocatalyst. A Tafel slope of 56 mV dec−1 and excellent long-term stability was achieved. Purposefully using NiP as a scaffold to in situ generate an active oxyhydroxide (NiOOH) OER catalyst on the surface of the electrode and interface coupling between the two layers provides numerous active sites and a synergistic effect to bring forth the profoundly enhanced performance of Fe0.45Co0.55P/NiP@CC electrode.

Graphical abstract: Interface modulation of a layer-by-layer electrodeposited FexCo(1−x)P/NiP@CC heterostructure for high-performance oxygen evolution reaction

Back to tab navigation

Supplementary files

Article information


Submitted
02 Dec 2019
Accepted
22 Jan 2020
First published
23 Jan 2020

Sustainable Energy Fuels, 2020, Advance Article
Article type
Paper

Interface modulation of a layer-by-layer electrodeposited FexCo(1−x)P/NiP@CC heterostructure for high-performance oxygen evolution reaction

B. Z. Desalegn, H. S. Jadhav and J. G. Seo, Sustainable Energy Fuels, 2020, Advance Article , DOI: 10.1039/C9SE01175G

Social activity

Search articles by author

Spotlight

Advertisements