skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Reducing Iridium Loading in Oxygen Evolution Reaction Electrocatalysts Using Core–Shell Particles with Nitride Cores

Journal Article · · ACS Catalysis
 [1];  [1];  [2];  [2];  [2];  [2]; ORCiD logo [3]; ORCiD logo [4]
  1. Columbia Univ., New York, NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Stony Brook Univ., Stony Brook, NY (United States)
  4. Columbia Univ., New York, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)

Here, the oxygen evolution reaction (OER) has broad applications in electrochemical devices, but it often requires expensive and scarce Ir-based catalysts in acid electrolyte. Presented here is a framework to reduce Ir loading by combining core–shell iridium/metal nitride morphologies using in situ experiments and density functional theory (DFT) calculations. Several group VIII transition metal (Fe, Co, and Ni) nitrides are studied as core materials, with Ir/Fe4N core–shell particles showing enhancement in both OER activity and stability. In situ X-ray absorption fine structure measurements are used to determine the structure and stability of the core–shell catalysts under OER conditions. DFT calculations are used to demonstrate adsorbate binding energies as descriptors of the observed activity trends.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1438306
Report Number(s):
BNL-205662-2018-JAAM
Journal Information:
ACS Catalysis, Vol. 8, Issue 3; ISSN 2155-5435
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 85 works
Citation information provided by
Web of Science

References (30)

Prospects of CO2 Utilization via Direct Heterogeneous Electrochemical Reduction journal December 2010
Ionic liquids in the electrochemical valorisation of CO 2 journal January 2015
A Critical Review of Li∕Air Batteries journal January 2012
A comprehensive review on PEM water electrolysis journal April 2013
Benchmarking Heterogeneous Electrocatalysts for the Oxygen Evolution Reaction journal October 2013
Electrocatalytic Oxygen Evolution Reaction (OER) on Ru, Ir, and Pt Catalysts: A Comparative Study of Nanoparticles and Bulk Materials journal July 2012
Platinum-group element abundances and Re–Os isotopic systematics of the upper continental crust through time: Evidence from glacial diamictites journal October 2016
Core–shell, hollow-structured iridium–nickel nitride nanoparticles for the hydrogen evolution reaction journal January 2014
Self-assembly of noble metal monolayers on transition metal carbide nanoparticle catalysts journal May 2016
Oxide-Supported IrNiO x Core-Shell Particles as Efficient, Cost-Effective, and Stable Catalysts for Electrochemical Water Splitting journal January 2015
Carbon-Supported IrNi Core–Shell Nanoparticles: Synthesis, Characterization, and Catalytic Activity journal May 2011
Origins, Developments, and Perspectives of Carbon Nitride-Based Electrocatalysts for Application in Low-Temperature FCs journal January 2015
Hollow nanoporous NiPd catalysts with enhanced performance for ethanol electro-oxidation journal September 2017
Irreversible Voltammetric Behavior of the (100) IrO2 Single‐Crystal Electrodes in Sulfuric Acid Medium journal October 1985
Orientation-Dependent Oxygen Evolution Activities of Rutile IrO 2 and RuO 2 journal April 2014
Inhomogeneous Electron Gas journal November 1964
Self-Consistent Equations Including Exchange and Correlation Effects journal November 1965
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Ab initio molecular dynamics for open-shell transition metals journal November 1993
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Projector augmented-wave method journal December 1994
Accurate and simple analytic representation of the electron-gas correlation energy journal June 1992
IrO 2 Coated on RuO 2 as Efficient and Stable Electroactive Nanocatalysts for Electrochemical Water Splitting journal February 2016
Molecular Insight in Structure and Activity of Highly Efficient, Low-Ir Ir–Ni Oxide Catalysts for Electrochemical Water Splitting (OER) journal September 2015
Electrocatalytic properties of ternary oxide mixtures of composition Ru0.3Ti(0.7−x)CexO2: oxygen evolution from acidic solution journal November 1996
Cobalt nitrides as a class of metallic electrocatalysts for the oxygen evolution reaction journal January 2016
Universality in Oxygen Evolution Electrocatalysis on Oxide Surfaces journal March 2011
The Reaction Mechanism with Free Energy Barriers at Constant Potentials for the Oxygen Evolution Reaction at the IrO 2 (110) Surface journal December 2016
Critical Review—Identifying Critical Gaps for Polymer Electrolyte Water Electrolysis Development journal January 2017
Transition-Metal Nitride Core@Noble-Metal Shell Nanoparticles as Highly CO Tolerant Catalysts journal June 2017

Cited By (10)

Minimization of Catalyst Loading on Regenerative Fuel Cell Positive Electrodes Based on Titanium Felts using Atomic Layer Deposition journal October 2018
Connected iridium nanoparticle catalysts coated onto silica with high density for oxygen evolution in polymer electrolyte water electrolysis journal January 2020
Nanoporous Al‐Ni‐Co‐Ir‐Mo High‐Entropy Alloy for Record‐High Water Splitting Activity in Acidic Environments journal October 2019
Recent advances in nanostructured metal nitrides for water splitting journal January 2018
Iridium‐Chromium Oxide Nanowires as Highly Performed OER Catalysts in Acidic Media journal October 2019
MOF‐Derived Ni‐Doped CoS 2 Grown on Carbon Fiber Paper for Efficient Oxygen Evolution Reaction journal January 2019
Relationship Between OER Activity and Annealing Temperature of Sputter-Deposited Flat IrO2 Thin Films journal January 2020
Ru@RuO 2 Core‐Shell Nanorods: A Highly Active and Stable Bifunctional Catalyst for Oxygen Evolution and Hydrogen Evolution Reactions journal April 2019
Net reduction of CO2 via its thermocatalytic and electrocatalytic transformation reactions in standard and hybrid processes journal April 2019
Highly scattered Ir oxides on TiN as an efficient oxygen evolution reaction electrocatalyst in acidic media journal November 2019

Figures / Tables (7)