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Title: Designing high performance Pt monolayer core–shell electrocatalysts for fuel cells

Abstract

In proton exchange membrane fuel cells, platinum (Pt) has been the dominant choice for both the cathode and the anode catalysts. The high Pt content and high associated costs particularly at the cathode, and sluggish oxygen reduction reaction (ORR) kinetics and poor stability, remain a challenge. Pt monolayer (ML) catalysts offer a distinctively reduced Pt content while providing considerable possibilities for enhancing their catalytic activity and stability for the ORR. Here, we first review the achievement in active and stable Pt ML on palladium (Pd) nanoparticle catalysts for the ORR. We then describe the mechanisms that rationalize their high activity and durability. Recently, we developed several novel nanostructured cores to further improve the ORR activity and stability by optimizing their surface orientation, composition, and morphology. The results from the Pt ML catalysts significantly impact the research of electrocatalysis and fuel-cell technology, as they demonstrate an exceptionally effective way of design and syntheses of catalysts.

Authors:
ORCiD logo [1];  [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Department
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Fuel Cell Technologies Program
OSTI Identifier:
1650008
Report Number(s):
BNL-216276-2020-JAAM
Journal ID: ISSN 2451-9103
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Current Opinion in Electrochemistry
Additional Journal Information:
Journal Volume: 21; Journal ID: ISSN 2451-9103
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; Pt monolayer; Core-shell; Fuel cells; Catalysis; Oxygen Reduction Reaction; Pd-base cores; non-PM cores

Citation Formats

Sasaki, Kotaro, Kuttiyiel, Kurian A., and Adzic, Radoslav R. Designing high performance Pt monolayer core–shell electrocatalysts for fuel cells. United States: N. p., 2020. Web. doi:10.1016/j.coelec.2020.03.020.
Sasaki, Kotaro, Kuttiyiel, Kurian A., & Adzic, Radoslav R. Designing high performance Pt monolayer core–shell electrocatalysts for fuel cells. United States. https://doi.org/10.1016/j.coelec.2020.03.020
Sasaki, Kotaro, Kuttiyiel, Kurian A., and Adzic, Radoslav R. Fri . "Designing high performance Pt monolayer core–shell electrocatalysts for fuel cells". United States. https://doi.org/10.1016/j.coelec.2020.03.020. https://www.osti.gov/servlets/purl/1650008.
@article{osti_1650008,
title = {Designing high performance Pt monolayer core–shell electrocatalysts for fuel cells},
author = {Sasaki, Kotaro and Kuttiyiel, Kurian A. and Adzic, Radoslav R.},
abstractNote = {In proton exchange membrane fuel cells, platinum (Pt) has been the dominant choice for both the cathode and the anode catalysts. The high Pt content and high associated costs particularly at the cathode, and sluggish oxygen reduction reaction (ORR) kinetics and poor stability, remain a challenge. Pt monolayer (ML) catalysts offer a distinctively reduced Pt content while providing considerable possibilities for enhancing their catalytic activity and stability for the ORR. Here, we first review the achievement in active and stable Pt ML on palladium (Pd) nanoparticle catalysts for the ORR. We then describe the mechanisms that rationalize their high activity and durability. Recently, we developed several novel nanostructured cores to further improve the ORR activity and stability by optimizing their surface orientation, composition, and morphology. The results from the Pt ML catalysts significantly impact the research of electrocatalysis and fuel-cell technology, as they demonstrate an exceptionally effective way of design and syntheses of catalysts.},
doi = {10.1016/j.coelec.2020.03.020},
journal = {Current Opinion in Electrochemistry},
number = ,
volume = 21,
place = {United States},
year = {Fri May 01 00:00:00 EDT 2020},
month = {Fri May 01 00:00:00 EDT 2020}
}

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