Reducing Iridium Loading in Oxygen Evolution Reaction Electrocatalysts Using Core–Shell Particles with Nitride Cores
Abstract
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.
- Authors:
-
- Columbia Univ., New York, NY (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Stony Brook Univ., Stony Brook, NY (United States)
- Columbia Univ., New York, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1438306
- Report Number(s):
- BNL-205662-2018-JAAM
Journal ID: ISSN 2155-5435
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Catalysis
- Additional Journal Information:
- Journal Volume: 8; Journal Issue: 3; Journal ID: ISSN 2155-5435
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; acidic OER; core−shell particle; density functional theory; electrocatalysis; X-ray absorption spectroscopy
Citation Formats
Tackett, Brian M., Sheng, Wenchao, Kattel, Shyam, Yao, Siyu, Yan, Binhang, Kuttiyiel, Kurian A., Wu, Qiyuan, and Chen, Jingguang G. Reducing Iridium Loading in Oxygen Evolution Reaction Electrocatalysts Using Core–Shell Particles with Nitride Cores. United States: N. p., 2018.
Web. doi:10.1021/acscatal.7b04410.
Tackett, Brian M., Sheng, Wenchao, Kattel, Shyam, Yao, Siyu, Yan, Binhang, Kuttiyiel, Kurian A., Wu, Qiyuan, & Chen, Jingguang G. Reducing Iridium Loading in Oxygen Evolution Reaction Electrocatalysts Using Core–Shell Particles with Nitride Cores. United States. doi:10.1021/acscatal.7b04410.
Tackett, Brian M., Sheng, Wenchao, Kattel, Shyam, Yao, Siyu, Yan, Binhang, Kuttiyiel, Kurian A., Wu, Qiyuan, and Chen, Jingguang G. Fri .
"Reducing Iridium Loading in Oxygen Evolution Reaction Electrocatalysts Using Core–Shell Particles with Nitride Cores". United States. doi:10.1021/acscatal.7b04410. https://www.osti.gov/servlets/purl/1438306.
@article{osti_1438306,
title = {Reducing Iridium Loading in Oxygen Evolution Reaction Electrocatalysts Using Core–Shell Particles with Nitride Cores},
author = {Tackett, Brian M. and Sheng, Wenchao and Kattel, Shyam and Yao, Siyu and Yan, Binhang and Kuttiyiel, Kurian A. and Wu, Qiyuan and Chen, Jingguang G.},
abstractNote = {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.},
doi = {10.1021/acscatal.7b04410},
journal = {ACS Catalysis},
number = 3,
volume = 8,
place = {United States},
year = {2018},
month = {2}
}
Web of Science
Figures / Tables:

Works referencing / citing this record:
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