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

Title: Synergic Effects of Surface Chemistry and Applied Potentials on the Kinetics of the Electrocatalytic Oxygen Evolution Reaction in IrO2

Journal Article · · ACS Applied Energy Materials
 [1]; ORCiD logo [1];  [1];  [2]; ORCiD logo [2]; ORCiD logo [3]
  1. Nanjing University of Science and Technology (China)
  2. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  3. Nanjing University of Science and Technology (China); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Improving the efficacy of the oxygen evolution reaction (OER) through water oxidation is critical for advancing photoelectrochemical water splitting. Among the catalysts, IrO2 exhibits a high OER catalytic activity and stability under acidic conditions. The OER mechanism in this system has been a topic of intense research; however, many mechanistic understandings are lacking. In this work, we carried out first-principles calculations with an implicit solvation model at a constant potential to study the OER behavior on the IrO2(110) surface. We find that the surface hydrogen coverage has a significant effect on OER kinetics and transition states. We then develop a microkinetics model that accounts for the continuous evolution of both OER activation energy and hydrogen coverage as a function of an applied potential. We show that this inclusion leads to significant improvement in the simulated Tafel plot compared to available experiments. In conclusion, our results point to a complex interplay between surface chemistry and the applied potential on OER kinetics.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Hydrogen Fuel Cell Technologies Office (HFTO); Natural Science Foundation of Jiangsu Province (NJUST)
Grant/Contract Number:
AC52-07NA27344; AC02-05CH11231; TSXK2022D002; BK20220929
OSTI ID:
2282837
Report Number(s):
LLNL-JRNL-859620; 1090245
Journal Information:
ACS Applied Energy Materials, Vol. 6, Issue 23; ISSN 2574-0962
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (52)

Generalized Gradient Approximation Made Simple journal October 1996
Key role of chemistry versus bias in electrocatalytic oxygen evolution journal November 2020
Electrocatalysis for the oxygen evolution reaction: recent development and future perspectives journal January 2017
Towards identifying the active sites on RuO 2 (110) in catalyzing oxygen evolution journal January 2017
Developments and perspectives of oxide-based catalysts for the oxygen evolution reaction journal January 2014
Reaction Mechanism for the Hydrogen Evolution Reaction on the Basal Plane Sulfur Vacancy Site of MoS 2 Using Grand Canonical Potential Kinetics journal November 2018
RuO2 electronic structure and lattice strain dual engineering for enhanced acidic oxygen evolution reaction performance journal July 2022
Assessing a First-Principles Model of an Electrochemical Interface by Comparison with Experiment journal January 2016
Self-consistent continuum solvation (SCCS): The case of charged systems journal December 2013
Dynamic Stability of Copper Single-Atom Catalysts under Working Conditions journal September 2022
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
The Ir–OOOO–Ir transition state and the mechanism of the oxygen evolution reaction on IrO2(110) journal January 2022
The charge-asymmetric nonlocally determined local-electric (CANDLE) solvation model journal February 2015
Competition between Lattice Oxygen and Adsorbate Evolving Mechanisms in Rutile Ru-Based Oxide for the Oxygen Evolution Reaction journal April 2023
Beyond the Rate-Determining Step in the Oxygen Evolution Reaction over a Single-Crystalline IrO 2 (110) Model Electrode: Kinetic Scaling Relations journal June 2019
Solvation Effects for Oxygen Evolution Reaction Catalysis on IrO 2 (110) journal May 2017
Iridium metallene oxide for acidic oxygen evolution catalysis journal October 2021
Mechanistic understanding of pH effects on the oxygen evolution reaction journal February 2022
Iridium Oxide for the Oxygen Evolution Reaction: Correlation between Particle Size, Morphology, and the Surface Hydroxo Layer from Operando XAS journal September 2016
Improving O2 production of WO3 photoanodes with IrO2 in acidic aqueous electrolyte journal January 2014
Self‐Reconstruction of Single‐Atom‐Thick A Layers in Nanolaminated MAX Phases for Enhanced Oxygen Evolution journal December 2022
JDFTx: Software for joint density-functional theory journal January 2017
Substantial Impact of Charge on Electrochemical Reactions of Two-Dimensional Materials journal June 2018
A climbing image nudged elastic band method for finding saddle points and minimum energy paths journal December 2000
Towards accurate prediction of catalytic activity in IrO 2 nanoclusters via first principles-based variable charge force field journal January 2015
Simulation of Potential-Dependent Activation Energies in Electrocatalysis: Mechanism of O–O Bond Formation on RuO 2 journal July 2021
Hybrid solvation models for bulk, interface, and membrane: Reference interaction site methods coupled with density functional theory journal September 2017
Improved modeling of electrified interfaces using the effective screening medium method journal October 2013
First-principles calculations of charged surfaces and interfaces: A plane-wave nonrepeated slab approach journal March 2006
Pseudopotentials for high-throughput DFT calculations journal January 2014
Spatial Structure of Electrical Diffuse Layers in Highly Concentrated Electrolytes: A Modified Poisson–Nernst–Planck Approach journal March 2014
Ruthenium single-atom catalysis for electrocatalytic nitrogen reduction unveiled by grand canonical density functional theory journal January 2020
Single-Atom Electrocatalysis for Hydrogen Evolution Based on the Constant Charge and Constant Potential Models journal July 2022
The Reaction Mechanism with Free Energy Barriers at Constant Potentials for the Oxygen Evolution Reaction at the IrO 2 (110) Surface journal December 2016
Synthesis and Activities of Rutile IrO 2 and RuO 2 Nanoparticles for Oxygen Evolution in Acid and Alkaline Solutions journal January 2012
Electrolysis of water on oxide surfaces journal September 2007
Physical Interpretation of Cyclic Voltammetry for Hybrid Pseudocapacitors journal May 2015
Diffusion and Surface Segregation of Interstitial Ti Defects Induced by Electronic Metal–Support Interactions on a Au/TiO2 Nanocatalyst journal March 2022
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Grand Canonical Ensemble Modeling of Electrochemical Interfaces Made Simple journal July 2023
Discovery of Acid-Stable Oxygen Evolution Catalysts: High-Throughput Computational Screening of Equimolar Bimetallic Oxides journal August 2020
Origin of Selective Production of Hydrogen Peroxide by Electrochemical Oxygen Reduction journal June 2021
Automated Discovery and Construction of Surface Phase Diagrams Using Machine Learning journal September 2016
Operando XANES from first-principles and its application to iridium oxide journal January 2020
Semiempirical GGA-type density functional constructed with a long-range dispersion correction journal January 2006
Revised self-consistent continuum solvation in electronic-structure calculations journal February 2012
Mechanistic Explanation of the pH Dependence and Onset Potentials for Hydrocarbon Products from Electrochemical Reduction of CO on Cu (111) journal January 2016
Photochemical Route for Accessing Amorphous Metal Oxide Materials for Water Oxidation Catalysis journal March 2013
Quantum-continuum simulation of the electrochemical response of pseudocapacitor electrodes under realistic conditions journal March 2017
Influence of Surface Adsorption on the Oxygen Evolution Reaction on IrO 2 (110) journal February 2017
Joint density functional theory of the electrode-electrolyte interface: Application to fixed electrode potentials, interfacial capacitances, and potentials of zero charge journal August 2012
A simple method to approximate electrode potential-dependent activation energies using density functional theory journal June 2017