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Title: Enhanced Oxygen Reduction Reaction Activity on Pt-Monolayer-Shell PdIr/Ni-Core Catalysts

Platinum monolayer oxygen reduction reaction catalysts offer the most promising possibility of reducing the Pt content without sacrificing its fuel cell performance. Here, we present a facile way of preparing Pt monolayer shell on PdIr-based core catalysts with and without Ni sub-core. They showed much higher activity for oxygen reduction reaction than commercial Pt/C catalyst. Among tested samples, PtMLPd2Ir/Ni/C performs the best having Pt mass activity 14 times and Platinum Group Metal mass activity 0.8 times higher than that of Pt/C. In addition, accelerated durability test indicates its excellent durability, which was demonstrated by a 7.5% decrease in Platinum Group Metal mass activity compared to 64% for the commercial Pt/C catalyst. As a result, the role of Ni sub-core in oxygen reduction reaction activity and durability of PtML on PdIr-based catalysts was also elucidated.
Authors:
ORCiD logo [1] ;  [1] ; ORCiD logo [2] ;  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., Stony Brook, NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-209341-2018-JAAM
Journal ID: ISSN 0013-4651
Grant/Contract Number:
SC0012704
Type:
Accepted Manuscript
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 165; Journal Issue: 15; Journal ID: ISSN 0013-4651
Publisher:
The Electrochemical Society
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; Electrocatalysis; Energy Conversion; Fuel Cells - PEM; fuel cell; oxygen reduction reaction; Pt monolayer
OSTI Identifier:
1480984

Song, Liang, Liang, Zhixiu, Vukmirovic, Miomir B., and Adzic, Radoslav R.. Enhanced Oxygen Reduction Reaction Activity on Pt-Monolayer-Shell PdIr/Ni-Core Catalysts. United States: N. p., Web. doi:10.1149/2.0391815jes.
Song, Liang, Liang, Zhixiu, Vukmirovic, Miomir B., & Adzic, Radoslav R.. Enhanced Oxygen Reduction Reaction Activity on Pt-Monolayer-Shell PdIr/Ni-Core Catalysts. United States. doi:10.1149/2.0391815jes.
Song, Liang, Liang, Zhixiu, Vukmirovic, Miomir B., and Adzic, Radoslav R.. 2018. "Enhanced Oxygen Reduction Reaction Activity on Pt-Monolayer-Shell PdIr/Ni-Core Catalysts". United States. doi:10.1149/2.0391815jes. https://www.osti.gov/servlets/purl/1480984.
@article{osti_1480984,
title = {Enhanced Oxygen Reduction Reaction Activity on Pt-Monolayer-Shell PdIr/Ni-Core Catalysts},
author = {Song, Liang and Liang, Zhixiu and Vukmirovic, Miomir B. and Adzic, Radoslav R.},
abstractNote = {Platinum monolayer oxygen reduction reaction catalysts offer the most promising possibility of reducing the Pt content without sacrificing its fuel cell performance. Here, we present a facile way of preparing Pt monolayer shell on PdIr-based core catalysts with and without Ni sub-core. They showed much higher activity for oxygen reduction reaction than commercial Pt/C catalyst. Among tested samples, PtMLPd2Ir/Ni/C performs the best having Pt mass activity 14 times and Platinum Group Metal mass activity 0.8 times higher than that of Pt/C. In addition, accelerated durability test indicates its excellent durability, which was demonstrated by a 7.5% decrease in Platinum Group Metal mass activity compared to 64% for the commercial Pt/C catalyst. As a result, the role of Ni sub-core in oxygen reduction reaction activity and durability of PtML on PdIr-based catalysts was also elucidated.},
doi = {10.1149/2.0391815jes},
journal = {Journal of the Electrochemical Society},
number = 15,
volume = 165,
place = {United States},
year = {2018},
month = {11}
}

Works referenced in this record:

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High-Performance Electrocatalysts for Oxygen Reduction Derived from Polyaniline, Iron, and Cobalt
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Platinum Monolayer Fuel Cell Electrocatalysts
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Theoretical surface science and catalysis—calculations and concepts
book, January 2000