DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: An Efficient and Robust Surface-Modified Iron Electrode for Oxygen Evolution in Alkaline Water Electrolysis

Journal Article · · Journal of the Electrochemical Society

Iron is unstable as an oxygen evolution electrode in alkaline media. Thus, relatively expensive nickel-based electrodes are used in industrial alkaline water electrolysis. We show that an iron substrate can be rendered stable and electrocatalytically active for the oxygen evolution reaction by nano-scale surface modification with nickel. The electrocatalytic activity of such a surface-modified iron electrode is comparable to the recently-reported nickel-based catalysts. The electrocatalytic activity is due to a 50-nanometer layer of a high-surface area a-nickel hydroxide on the iron electrode. The nickel modification renders the iron electrode electrically-conductive, prevents dielectric breakdown, and thus endows anodic stability. The electrocatalytic activity is unchanged even after 1000 hours of continuous operation. The temperature of preparation is critical, as excessive dehydration of the hydroxide layer results in nickel ferrite formation and a drastic reduction in electrocatalytic activity. We report significant insight into the surface chemical composition and structure of the catalyst layer by X-ray Absorption Spectroscopy, Photoelectron Spectroscopy, and Transmission Electron Microscopy. Electrochemical kinetics analysis suggests that surface hydroxo-intermediates react with the hydroxide ions from the solution to evolve oxygen. Furthermore, the surface-modified iron substrates present an opportunity for improving the performance and reducing the cost of alkaline water electrolysis systems. (C) The Author(s) 2018. Published by ECS.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1461347
Journal Information:
Journal of the Electrochemical Society, Vol. 165, Issue 5; ISSN 0013-4651
Publisher:
The Electrochemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

References (59)

ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT journal June 2005
Surface Interrogation Scanning Electrochemical Microscopy of Ni 1– x Fe x OOH (0 < x < 0.27) Oxygen Evolving Catalyst: Kinetics of the “fast” Iron Sites journal December 2015
Nickel selenide as a high-efficiency catalyst for oxygen evolution reaction journal January 2016
A mini review of NiFe-based materials as highly active oxygen evolution reaction electrocatalysts journal November 2014
A Bifunctional Nonprecious Metal Catalyst for Oxygen Reduction and Water Oxidation journal October 2010
The Activity Coefficient of Potassium Hydroxide in Potassium Chloride Solutions journal March 1925
Review of the structure and the electrochemistry of nickel hydroxides and oxy-hydroxides journal January 1982
The analysis of electrode impedances complicated by the presence of a constant phase element journal September 1984
SrNb 0.1 Co 0.7 Fe 0.2 O 3− δ Perovskite as a Next-Generation Electrocatalyst for Oxygen Evolution in Alkaline Solution journal February 2015
Bi-Functional Oxygen Electrodes - Challenges and Prospects journal January 2015
Mechanism of oxygen evolution on perovskites journal July 1983
The preparation and behaviour of magnetite anodes journal July 1978
Double perovskites as a family of highly active catalysts for oxygen evolution in alkaline solution journal September 2013
Water Oxidation Catalysis: Electrocatalytic Response to Metal Stoichiometry in Amorphous Metal Oxide Films Containing Iron, Cobalt, and Nickel journal July 2013
Electrochemical Deposition of Spinel-Type Cobalt Oxide from Alkaline Solution of Co[sup 2+] with Glycine journal January 2002
Efficient Electro-Oxidation of Water near Its Reversible Potential by a Mesoporous IrO x Nanoparticle Film journal July 2009
Design Insights for Tuning the Electrocatalytic Activity of Perovskite Oxides for the Oxygen Evolution Reaction journal April 2015
An Advanced Ni–Fe Layered Double Hydroxide Electrocatalyst for Water Oxidation journal May 2013
The Mechanism of Water Oxidation: From Electrolysis via Homogeneous to Biological Catalysis journal June 2010
Electrochemical study of the promoting effect of Fe on oxygen evolution at thin ‘NiFe–Bi’ films and the inhibiting effect of Al in borate electrolyte journal January 2017
Crystalline nickel manganese antimonate as a stable water-oxidation catalyst in aqueous 1.0 M H 2 SO 4 journal January 2017
Cobalt–Iron (Oxy)hydroxide Oxygen Evolution Electrocatalysts: The Role of Structure and Composition on Activity, Stability, and Mechanism journal March 2015
In Situ Formation of an Oxygen-Evolving Catalyst in Neutral Water Containing Phosphate and Co2+ journal August 2008
Texturing in situ: N,S-enriched hierarchically porous carbon as a highly active reversible oxygen electrocatalyst journal January 2017
Water-oxidation catalysis by manganese in a geochemical-like cycle journal May 2011
Charge-Transfer Effects in Ni–Fe and Ni–Fe–Co Mixed-Metal Oxides for the Alkaline Oxygen Evolution Reaction journal December 2015
A Perovskite Oxide Optimized for Oxygen Evolution Catalysis from Molecular Orbital Principles journal October 2011
A nanoporous oxygen evolution catalyst synthesized by selective electrochemical etching of perovskite hydroxide CoSn(OH) 6 nanocubes journal January 2016
Electrolysis of water on (oxidized) metal surfaces journal December 2005
New interpretations of XPS spectra of nickel metal and oxides journal May 2006
X-Ray Absorption Spectroscopy Study of the Local Structure of Heavy Metal Ions Incorporated into Electrodeposited Nickel Oxide Films journal January 1999
Mixed spinel structure in nanocrystalline NiFe 2 O 4 journal April 2001
Electrocatalysis: understanding the success of DSA® journal May 2000
Enhancing Bi-functional Electrocatalytic Activity of Perovskite by Temperature Shock: A Case Study of LaNiO 3−δ journal August 2013
Analysis of X-ray Absorption Spectra of Some Nickel Oxycompounds Using Theoretical Standards journal January 1998
An Investigation of Thin-Film Ni–Fe Oxide Catalysts for the Electrochemical Evolution of Oxygen journal August 2013
Electrodeposition of hierarchically structured three-dimensional nickel–iron electrodes for efficient oxygen evolution at high current densities journal March 2015
Partially Oxidized Sub-10 nm MnO Nanocrystals with High Activity for Water Oxidation Catalysis journal May 2015
Exfoliation of layered double hydroxides for enhanced oxygen evolution catalysis journal July 2014
Dynamic potential–pH diagrams application to electrocatalysts for wateroxidation journal January 2012
A layered Na 1−x Ni y Fe 1−y O 2 double oxide oxygen evolution reaction electrocatalyst for highly efficient water-splitting journal January 2017
Oxygen evolution on aged IrO x /Ti electrodes in alkaline solutions journal December 2006
Discovering Ce-rich oxygen evolution catalysts, from high throughput screening to water electrolysis journal January 2014
Electrocatalytic Properties of Nanocrystalline Calcium-Doped Lanthanum Cobalt Oxide for Bifunctional Oxygen Electrodes journal March 2012
Benchmarking Heterogeneous Electrocatalysts for the Oxygen Evolution Reaction journal October 2013
Oxygen Evolution Reaction Dynamics, Faradaic Charge Efficiency, and the Active Metal Redox States of Ni–Fe Oxide Water Splitting Electrocatalysts journal April 2016
Identification of Highly Active Fe Sites in (Ni,Fe)OOH for Electrocatalytic Water Splitting journal January 2015
Thermal behavior of oxides and hydroxides of iron and nickel journal June 1989
Alkaline Water Electrolysis Anode Materials journal January 1985
Nickel–Iron Oxyhydroxide Oxygen-Evolution Electrocatalysts: The Role of Intentional and Incidental Iron Incorporation journal April 2014
Role of Catalyst Preparation on the Electrocatalytic Activity of Ni 1– x Fe x OOH for the Oxygen Evolution Reaction journal August 2015
Toward the rational design of non-precious transition metal oxides for oxygen electrocatalysis journal January 2015
Synthesis of nickel ferrite nanoparticles by sol-gel method journal May 2001
A metal-free bifunctional electrocatalyst for oxygen reduction and oxygen evolution reactions journal April 2015
A Structural and Magnetic Investigation of the Inversion Degree in Ferrite Nanocrystals MFe 2 O 4 (M = Mn, Co, Ni) journal May 2009
Kinetics of oxygen evolution on Pb and Pb-Ag anodes during zinc electrowinning journal May 1996
Electrochemical Synthesis of Spinel Type ZnCo 2 O 4 Electrodes for Use as Oxygen Evolution Reaction Catalysts journal June 2014
SrNb 0.1 Co 0.7 Fe 0.2 O 3− δ Perovskite as a Next-Generation Electrocatalyst for Oxygen Evolution in Alkaline Solution journal February 2015
Selective Site Occupancy Exhibited by Cr[sup 3+] and Cr[sup 6+] Incorporated into Elecrtochemically Deposited Nickel Hydroxide Films journal January 1999

Cited By (2)

Electrochemical Cathodic Treatment of Mild Steel as a Host for Ni(OH) 2 Catalyst for Oxygen Evolution Reaction in Alkaline Media journal July 2019
Optimization of the Perturbation Amplitude for EIS Measurements Using a Total Harmonic Distortion Based Method journal January 2018