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Title: Activity and Durability of Iridium Nanoparticles in the Oxygen Evolution Reaction

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/2.0151611jes· OSTI ID:1290782
 [1];  [2];  [3];  [1];  [1];  [3];  [2];  [1]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States). Chemical and Materials Science Center
  2. Giner, Inc., Newton, MA (United States)
  3. Colorado School of Mines, Golden, CO (United States). Dept. of Chemistry

Unsupported iridium (Ir) nanoparticles, that serve as standard oxygen evolution reaction (OER) catalysts in acidic electrolyzers, were investigated for electrochemical performance and durability in rotating disk electrode (RDE) half-cells. Fixed potential holds and potential cycling were applied to probe the durability of Ir nanoparticles, and performance losses were found to be driven by particle growth (coarsening) at moderate potential (1.4 to 1.6 V) and Ir dissolution at higher potential (>/=1.8 V). Several different commercially available samples were evaluated and standardized conditions for performance comparison are reported. In conclusion, the electrocatalyst RDE results have also been compared to results obtained for performance and durability in electrolysis cells.

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:
1290782
Report Number(s):
NREL/JA-5900-66915
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: 136 works
Citation information provided by
Web of Science

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Cited By (25)

Colloids for Catalysts: A Concept for the Preparation of Superior Catalysts of Industrial Relevance journal August 2018
Electrolyzer Durability at Low Catalyst Loading and with Dynamic Operation journal January 2019
Self-supported nanostructured iridium-based networks as highly active electrocatalysts for oxygen evolution in acidic media journal January 2020
OER Catalyst Stability Investigation Using RDE Technique: A Stability Measure or an Artifact? journal January 2019
Effect of Electronic Conductivities of Iridium Oxide/Doped SnO2 Oxygen-Evolving Catalysts on the Polarization Properties in Proton Exchange Membrane Water Electrolysis journal January 2019
Methodology for Investigating Electrochemical Gas Evolution Reactions: Floating Electrode as a Means for Effective Gas Bubble Removal journal August 2019
Colloids for Catalysts: A Concept for the Preparation of Superior Catalysts of Industrial Relevance text January 2018
Electrolyte Effects on the Electrocatalytic Performance of Iridium‐Based Nanoparticles for Oxygen Evolution in Rotating Disc Electrodes journal November 2019
A Roadmap to Low‐Cost Hydrogen with Hydroxide Exchange Membrane Electrolyzers journal December 2018
Minimization of Catalyst Loading on Regenerative Fuel Cell Positive Electrodes Based on Titanium Felts using Atomic Layer Deposition journal October 2018
Stable Reference Electrode in Polymer Electrolyte Membrane Electrolyser for Three-Electrode Measurements journal January 2019
Dissolution Stability: The Major Challenge in the Regenerative Fuel Cells Bifunctional Catalysis journal January 2018
Recent Progress in Bifunctional Electrocatalysts for Overall Water Splitting under Acidic Conditions journal May 2019
Hemi-core@frame AuCu@IrNi nanocrystals as active and durable bifunctional catalysts for the water splitting reaction in acidic media journal January 2019
Efficient OER Catalyst with Low Ir Volume Density Obtained by Homogeneous Deposition of Iridium Oxide Nanoparticles on Macroporous Antimony‐Doped Tin Oxide Support journal October 2019
An IrRu alloy nanocactus on Cu 2−x S@IrS y as a highly efficient bifunctional electrocatalyst toward overall water splitting in acidic electrolytes journal January 2018
A non-precious metal hydrogen catalyst in a commercial polymer electrolyte membrane electrolyser journal October 2019
Synthesis of Iridium Nanocatalysts for Water Oxidation in Acid: Effect of the Surfactant journal January 2020
Iridium Oxygen Evolution Activity and Durability Baselines in Rotating Disk Electrode Half-Cells journal January 2019
Atomic-scale insights into surface species of electrocatalysts in three dimensions journal March 2018
The Roles of Oxide Growth and Sub-Surface Facets in Oxygen Evolution Activity of Iridium and Its Impact on Electrolysis journal January 2019
Efficient OER Catalyst with Low Ir Volume Density Obtained by Homogeneous Deposition of Iridium Oxide Nanoparticles on Macroporous Antimony-Doped Tin Oxide Support text January 2019
Synthesis of Iridium Nanocatalysts for Water Oxidation in Acid: Effect of the Surfactant text January 2020
Self-supported nanostructured iridium-based networks as highly active electrocatalysts for oxygen evolution in acidic media text January 2020
Colloids for Catalysts: A Concept for the Preparation of Superior Catalysts of Industrial Relevance journal August 2018

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