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Title: Mercury Underpotential Deposition to Determine Iridium and Iridium Oxide Electrochemical Surface Areas

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/2.0071611jes· OSTI ID:1290786
 [1];  [1];  [1];  [1]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States). Chemical and Materials Science Center

Determining the surface areas of electrocatalysts is critical for separating the key properties of area-specific activity and electrochemical surface area from mass activity. Hydrogen underpotential deposition and carbon monoxide oxidation are typically used to evaluate iridium (Ir) surface areas, but are ineffective on oxides and can be sensitive to surface oxides formed on Ir metals. Mercury underpotential deposition is presented in this study as an alternative, able to produce reasonable surface areas on Ir and Ir oxide nanoparticles, and able to produce similar surface areas prior to and following characterization in oxygen evolution. Reliable electrochemical surface areas allow for comparative studies of different catalyst types and the characterization of advanced oxygen evolution catalysts. Lastly, they also enable the study of catalyst degradation in durability testing, both areas of increasing importance within electrolysis and electrocatalysis.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC36-08GO28308; SC0007471
OSTI ID:
1290786
Report Number(s):
NREL/JA-5900-66914
Journal Information:
Journal of the Electrochemical Society, Vol. 163, Issue 11; ISSN 0013-4651
Publisher:
The Electrochemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 59 works
Citation information provided by
Web of Science

References (38)

Kinetics of oxygen evolution and dissolution on platinum electrodes journal July 1966
Hydrogen Oxidation and Evolution Reaction Kinetics on Platinum: Acid vs Alkaline Electrolytes journal January 2010
Molecular Insight in Structure and Activity of Highly Efficient, Low-Ir Ir–Ni Oxide Catalysts for Electrochemical Water Splitting (OER) journal September 2015
Oxide-Supported IrNiO x Core-Shell Particles as Efficient, Cost-Effective, and Stable Catalysts for Electrochemical Water Splitting journal January 2015
Electrocatalytic Oxygen Evolution Reaction (OER) on Ru, Ir, and Pt Catalysts: A Comparative Study of Nanoparticles and Bulk Materials journal July 2012
Oxide-supported Ir nanodendrites with high activity and durability for the oxygen evolution reaction in acid PEM water electrolyzers journal January 2015
IrO2/Nb–TiO2 electrocatalyst for oxygen evolution reaction in acidic medium journal April 2014
Three-dimensional ordered macroporous IrO2 as electrocatalyst for oxygen evolution reaction in acidic medium journal January 2012
Fine-tuning the activity of oxygen evolution catalysts: The effect of oxidation pre-treatment on size-selected Ru nanoparticles journal March 2016
Bimetallic Ru Electrocatalysts for the OER and Electrolytic Water Splitting in Acidic Media journal January 2010
The oxygen evolution reaction on platinum, iridium, ruthenium and their alloys at 80°C in acid solutions journal June 1978
Electrochemical Equilibria book January 1973
Activity and Durability of Iridium Nanoparticles in the Oxygen Evolution Reaction journal September 2015
Hydrogen adsorption on platinum, iridium and rhodium electrodes at reduced temperatures and the determination of real surface area journal January 1974
Hydrogen adsorption on iridium single-crystal surfaces journal February 1990
Electrochemical Infrared Studies of Monocrystalline Iridium Surfaces. Part 2:  Carbon Monoxide and Nitric Oxide Adsorption on Ir(110) journal April 1998
Iridium Oxide Film Electrodes for Anodic Stripping Voltammetry journal October 2008
Deposition and Stripping Properties of Mercury on Iridium Electrodes journal January 1986
Solid-state Reactions of Mercury with Pure Noble Metals Part 2. Mercury–iridium system journal January 2002
An iridium based mercury film electrode journal January 1988
Calculating the Electrochemically Active Surface Area of Iridium Oxide in Operating Proton Exchange Membrane Electrolyzers journal January 2015
Determining the Electrochemically Active Area of IrOx Powder Catalysts in an Operating Proton Exchange Membrane Electrolyzer journal September 2015
Experimental Methods for Quantifying the Activity of Platinum Electrocatalysts for the Oxygen Reduction Reaction journal August 2010
Influence of iridium oxide loadings on the performance of PEM water electrolysis cells: Part I–Pure IrO 2 -based anodes journal March 2016
“Inner” and “outer” active surface of RuO2 electrodes journal January 1990
Ruthenium dioxide-based film electrodes: III. Effect of chemical composition and surface morphology on oxygen evolution in acid solutions journal March 1978
Electrocatalysis in water electrolysis with solid polymer electrolyte journal November 2003
Impedance of hydrated iridium oxide electrodes journal June 1989
In vitro electrical properties for iridium oxide versus titanium nitride stimulating electrodes journal December 2002
Potential-Biased, Asymmetric Waveforms for Charge-Injection With Activated Iridium Oxide (AIROF) Neural Stimulation Electrodes journal February 2006
Charge Injection Properties of Thermally-Prepared Iridium Oxide Films journal January 1985
Neural Stimulation and Recording Electrodes journal August 2008
Benchmarking Hydrogen Evolving Reaction and Oxygen Evolving Reaction Electrocatalysts for Solar Water Splitting Devices journal March 2015
Carbon monoxide electrooxidation on well-characterized platinum-ruthenium alloys journal January 1994
Measurement of oxygen reduction activities via the rotating disc electrode method: From Pt model surfaces to carbon-supported high surface area catalysts journal February 2008
Mechanism of Carbon Monoxide Electrooxidation on Monocrystalline Gold Surfaces:  Identification of a Hydroxycarbonyl Intermediate journal January 1996
Adsorption of carbon monoxide on a smooth palladium electrode: an in-situ infrared spectroscopic study journal May 1984
Trace determination of mercury by anodic stripping voltammetry at the rotating gold electrode journal November 2000

Cited By (10)

Synthesis of Iridium Nanocatalysts for Water Oxidation in Acid: Effect of the Surfactant journal January 2020
Electrolyte Effects on the Electrocatalytic Performance of Iridium‐Based Nanoparticles for Oxygen Evolution in Rotating Disc Electrodes journal November 2019
Connected iridium nanoparticle catalysts coated onto silica with high density for oxygen evolution in polymer electrolyte water electrolysis journal January 2020
Iridium Oxygen Evolution Activity and Durability Baselines in Rotating Disk Electrode Half-Cells journal January 2019
The Roles of Oxide Growth and Sub-Surface Facets in Oxygen Evolution Activity of Iridium and Its Impact on Electrolysis journal January 2019
Analysis of Inkjet Printed Catalyst Coated Membranes for Polymer Electrolyte Electrolyzers journal January 2018
Polymer Electrolyte Water Electrolysis: Correlating Performance and Porous Transport Layer Structure: Part II. Electrochemical Performance Analysis journal January 2019
Polymer Electrolyte Water Electrolysis: Correlating Performance and Porous Transport Layer Structure: Part II. Electrochemical Performance Analysis text January 2019
Synthesis of Iridium Nanocatalysts for Water Oxidation in Acid: Effect of the Surfactant text January 2020
Disposition of Iridium on Ruthenium Nanoparticle Supported on Ketjenblack: Enhancement in Electrocatalytic Activity toward the Electrohydrogenation of Toluene to Methylcyclohexane journal January 2020

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