FeCoNi alloy as noble metal-free electrocatalyst for Oxygen Evolution Reaction (OER)

Saha, Soumen ; Ganguli, Ashok K. (2017) FeCoNi alloy as noble metal-free electrocatalyst for Oxygen Evolution Reaction (OER) ChemistrySelect, 2 (4). pp. 1630-1636. ISSN 2365-6549

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/slct.20...

Related URL: http://dx.doi.org/10.1002/slct.201601243


The development of efficient and durable noble metal-free electrocatalyst for oxygen evolution reaction (OER) is highly desired in polymer electrolyte membrane (PEM) based water electrolysis and metal- air batteries but still remains a challenge. In this paper, we employ co-precipitation method to prepare layered double hydroxides followed by calcination to synthesize nanoalloy catalyst, which was further characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM/EDS), high resolution transmission electron microscopy (HRTEM)and x-ray photoelectron spectroscopy. As a novel OER electrocatalyst, the FeCoNi alloy catalyst shows remarkable OER activity enhancement with an overpotential of only 400 mV and a low Tafel slope 72 mV dec−1. This work offers a unique paradigm for the synthesis of competitive electrocatalyst for OER with excellent durability under alkaline condition.

Item Type:Article
Source:Copyright of this article belongs to John Wiley & Sons, Inc.
Keywords:Electrochemistry; FeCoNi Alloy Nanoparticles (NPs); Layered Double Hydroxides (LDHs);Linear Sweep Voltammetry (LSV); Oxygen Evolution Reaction (OER)
ID Code:112050
Deposited On:28 Sep 2017 12:23
Last Modified:28 Sep 2017 12:23

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