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Title: Ultra-high-performance core–shell structured Ru@Pt/C catalyst prepared by a facile pulse electrochemical deposition method

Abstract

Core–shell structured catalysts, made by placing either a monolayer or a thin layer of a noble metal on relatively cheap core-metal nanoparticles, are fascinating and promising fuel cell catalysts due to their high utilization of noble metals. Here, we report our development of a core–shell structured catalyst, Ru@Pt/C, generated by a novel and facile pulse electrochemical deposition (PED) approach. We demonstrate that compared with a commercial Pt/C catalyst, this novel catalyst achieves over four times higher mass activity towards the anodic oxidation of methanol, and 3.6 times higher mass activity towards the cathodic reduction of oxygen. Importantly, we find that the intrinsic activity of Pt in this Ru@Pt/C catalyst is doubled due to the formation of the core–shell structure. The catalyst also shows superior stability: even after 2000 scans, it still retains up to 90% of the peak current. As a result, our findings demonstrate that this novel PED approach is a promising method for preparing high-performance core–shell catalysts for fuel cell applications.

Authors:
 [1];  [2];  [1];  [3];  [1];  [1];  [1];  [4]
+ Show Author Affiliations
  1. South China Univ. of Technology, Guangzhou (China)
  2. South China Univ. of Technology, Guangzhou (China); Datong Univ., Datong (China)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. Academy of China, Dalian (China)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1224777
Report Number(s):
BNL-108510-2015-JA
Journal ID: ISSN 2045-2322; KC0403020
Grant/Contract Number:  
SC00112704
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 5; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
29 ENERGY PLANNING, POLICY, AND ECONOMY; Center for Functional Nanomaterials; electrocatalysis; fuel cells

Citation Formats

Chen, Dan, Li, Yuexia, Liao, Shijun, Su, Dong, Song, Huiyu, Li, Yingwei, Yang, Lijun, and Li, Can. Ultra-high-performance core–shell structured Ru@Pt/C catalyst prepared by a facile pulse electrochemical deposition method. United States: N. p., 2015. Web. doi:10.1038/srep11604.
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Chen, Dan, Li, Yuexia, Liao, Shijun, Su, Dong, Song, Huiyu, Li, Yingwei, Yang, Lijun, & Li, Can. Ultra-high-performance core–shell structured Ru@Pt/C catalyst prepared by a facile pulse electrochemical deposition method. United States. https://doi.org/10.1038/srep11604
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Chen, Dan, Li, Yuexia, Liao, Shijun, Su, Dong, Song, Huiyu, Li, Yingwei, Yang, Lijun, and Li, Can. Mon . "Ultra-high-performance core–shell structured Ru@Pt/C catalyst prepared by a facile pulse electrochemical deposition method". United States. https://doi.org/10.1038/srep11604. https://www.osti.gov/servlets/purl/1224777.
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@article{osti_1224777,
title = {Ultra-high-performance core–shell structured Ru@Pt/C catalyst prepared by a facile pulse electrochemical deposition method},
author = {Chen, Dan and Li, Yuexia and Liao, Shijun and Su, Dong and Song, Huiyu and Li, Yingwei and Yang, Lijun and Li, Can},
abstractNote = {Core–shell structured catalysts, made by placing either a monolayer or a thin layer of a noble metal on relatively cheap core-metal nanoparticles, are fascinating and promising fuel cell catalysts due to their high utilization of noble metals. Here, we report our development of a core–shell structured catalyst, Ru@Pt/C, generated by a novel and facile pulse electrochemical deposition (PED) approach. We demonstrate that compared with a commercial Pt/C catalyst, this novel catalyst achieves over four times higher mass activity towards the anodic oxidation of methanol, and 3.6 times higher mass activity towards the cathodic reduction of oxygen. Importantly, we find that the intrinsic activity of Pt in this Ru@Pt/C catalyst is doubled due to the formation of the core–shell structure. The catalyst also shows superior stability: even after 2000 scans, it still retains up to 90% of the peak current. As a result, our findings demonstrate that this novel PED approach is a promising method for preparing high-performance core–shell catalysts for fuel cell applications.},
doi = {10.1038/srep11604},
journal = {Scientific Reports},
number = ,
volume = 5,
place = {United States},
year = {Mon Aug 03 00:00:00 EDT 2015},
month = {Mon Aug 03 00:00:00 EDT 2015}
}
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https://doi.org/10.1038/srep11604
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Works referenced in this record:

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Core/Shell Pd/FePt Nanoparticles as an Active and Durable Catalyst for the Oxygen Reduction Reaction
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    Works referencing / citing this record:

    Core–Shell-Structured Low-Platinum Electrocatalysts for Fuel Cell Applications
    journal, July 2018

    Correlation between the electronic/local structure and CO-oxidation activity of Pd x Ru 1−x alloy nanoparticles
    journal, January 2019

    • Song, Chulho; Tayal, Akhil; Seo, Okkyun
    • Nanoscale Advances, Vol. 1, Issue 2
    • DOI: 10.1039/c8na00305j

    Impregnated Electroreduced Pt on Ru/C as an Anode Catalyst for Direct Methanol Fuel Cells
    journal, January 2019

    • Muthukumar, Volga; Chetty, Raghuram
    • Journal of The Electrochemical Society, Vol. 166, Issue 15
    • DOI: 10.1149/2.0221915jes
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