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Title: Highly Dispersed Carbon Supported PdNiMo Core with Pt Monolayer Shell Electrocatalysts for Oxygen Reduction Reaction

Abstract

The development of low-cost, durable, and high-performance materials that could substitute for the current platinum-based electrocatalysts would accelerate the commercialization of polymer electrolyte membrane fuel cells as an alternative power source. We report herein a new fabrication approach of carbon-supported platinum monolayer (ML) on ternary palladium-nickelmolybdenum core electrocatalysts (PtML/PdNiMo/C) by a sonochemical method using ionic liquid (IL) as a dispersion medium. The sonolysis technique can control the size and distribution of the ternary-metal nanoparticles on different carbon supports without addition of any external reducing agents, surfactants or capping agents. Depositing Pt MLs using under-potential deposition method on the ternary PdNiMo nanoparticle cores could enhance activity and durability of the cathode during the oxygen reduction reaction of the fuel cell. Herein, we show that the described sonolysis method produces more reliable and cost-effective electrocatalysts that outperforms a commercial Pt-based catalyst.

Authors:
 [1];  [2];  [2];  [2];  [3];  [1];  [4]
  1. Stony Brook Univ., NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. North Carolina Agriculture and Technical State Univ., Greensboro, NC (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., 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:
1485439
Report Number(s):
BNL-209671-2018-JAAM
Journal ID: ISSN 1938-6737
Grant/Contract Number:  
SC0012704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
ECS Transactions (Online)
Additional Journal Information:
Journal Volume: 85; Journal Issue: 12; Journal ID: ISSN 1938-6737
Publisher:
Electrochemical Society
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY

Citation Formats

Okoli, Celest, Kuttiyiel, Kurian A., Sasaki, Kotaro, Su, Dong, Kuila, Debasish, Mahajan, Devinder, and Adzic, Radoslav R. Highly Dispersed Carbon Supported PdNiMo Core with Pt Monolayer Shell Electrocatalysts for Oxygen Reduction Reaction. United States: N. p., 2018. Web. doi:10.1149/08512.0067ecst.
Okoli, Celest, Kuttiyiel, Kurian A., Sasaki, Kotaro, Su, Dong, Kuila, Debasish, Mahajan, Devinder, & Adzic, Radoslav R. Highly Dispersed Carbon Supported PdNiMo Core with Pt Monolayer Shell Electrocatalysts for Oxygen Reduction Reaction. United States. https://doi.org/10.1149/08512.0067ecst
Okoli, Celest, Kuttiyiel, Kurian A., Sasaki, Kotaro, Su, Dong, Kuila, Debasish, Mahajan, Devinder, and Adzic, Radoslav R. 2018. "Highly Dispersed Carbon Supported PdNiMo Core with Pt Monolayer Shell Electrocatalysts for Oxygen Reduction Reaction". United States. https://doi.org/10.1149/08512.0067ecst. https://www.osti.gov/servlets/purl/1485439.
@article{osti_1485439,
title = {Highly Dispersed Carbon Supported PdNiMo Core with Pt Monolayer Shell Electrocatalysts for Oxygen Reduction Reaction},
author = {Okoli, Celest and Kuttiyiel, Kurian A. and Sasaki, Kotaro and Su, Dong and Kuila, Debasish and Mahajan, Devinder and Adzic, Radoslav R.},
abstractNote = {The development of low-cost, durable, and high-performance materials that could substitute for the current platinum-based electrocatalysts would accelerate the commercialization of polymer electrolyte membrane fuel cells as an alternative power source. We report herein a new fabrication approach of carbon-supported platinum monolayer (ML) on ternary palladium-nickelmolybdenum core electrocatalysts (PtML/PdNiMo/C) by a sonochemical method using ionic liquid (IL) as a dispersion medium. The sonolysis technique can control the size and distribution of the ternary-metal nanoparticles on different carbon supports without addition of any external reducing agents, surfactants or capping agents. Depositing Pt MLs using under-potential deposition method on the ternary PdNiMo nanoparticle cores could enhance activity and durability of the cathode during the oxygen reduction reaction of the fuel cell. Herein, we show that the described sonolysis method produces more reliable and cost-effective electrocatalysts that outperforms a commercial Pt-based catalyst.},
doi = {10.1149/08512.0067ecst},
url = {https://www.osti.gov/biblio/1485439}, journal = {ECS Transactions (Online)},
issn = {1938-6737},
number = 12,
volume = 85,
place = {United States},
year = {2018},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Figures / Tables:

Figure 1 Figure 1: (a, b) HAADF-STEM images of PdNiMo nanoparticles. (d) EELS line-scan profiles of Pd M edge, Mo L edge, and Ni L edge scanned along the line as indicated in (c) HAADF-STEM image of a single nanoparticle.

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Works referenced in this record:

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Works referencing / citing this record:

Improving Oxygen Reduction Reaction and Selective Hydrodechlorination Performance Based on CoNi on Graphene Using Ionic Liquids as a Binder
journal, January 2019


Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.