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Title: Tungsten‐Doped L1 0 ‐PtCo Ultrasmall Nanoparticles as a High‐Performance Fuel Cell Cathode

Abstract

Abstract The commercialization of proton exchange membrane fuel cells (PEMFCs) relies on highly active and stable electrocatalysts for oxygen reduction reaction (ORR) in acid media. The most successful catalysts for this reaction are nanostructured Pt‐alloy with a Pt‐skin. The synthesis of ultrasmall and ordered L1 0 ‐PtCo nanoparticle ORR catalysts further doped with a few percent of metals (W, Ga, Zn) is reported. Compared to commercial Pt/C catalyst, the L1 0 ‐W‐PtCo/C catalyst shows significant improvement in both initial activity and high‐temperature stability. The L1 0 ‐W‐PtCo/C catalyst achieves high activity and stability in the PEMFC after 50 000 voltage cycles at 80 °C, which is superior to the DOE 2020 targets. EXAFS analysis and density functional theory calculations reveal that W doping not only stabilizes the ordered intermetallic structure, but also tunes the Pt‐Pt distances in such a way to optimize the binding energy between Pt and O intermediates on the surface.

Authors:
 [1];  [2];  [3];  [4];  [5];  [1];  [1];  [1];  [6];  [7];  [1];  [1]; ORCiD logo [8];  [1]
  1. State Key Laboratory of Material Processing and Die &, Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan Hubei 430074 China
  2. Center for Functional Nanomaterials Brookhaven National Laboratory Upton NY 11973 USA, Frontier Institute of Chemistry Frontier Institute of Science and Technology jointly with College of Science Xi'an Jiaotong University Xi'an Shanxi 710054 China
  3. Department of Physics and Astronomy California State University Northridge CA 91330 USA, Current address: School of Physical Science and Technology Inner Mongolia University Hohhot Inner Mongolia 010021 China
  4. Faculty of Materials Science and Chemistry China University of Geosciences Wuhan Hubei 430074 China
  5. College of Materials Science and Engineering Changsha University of Science and Technology Changsha 410114 China
  6. School of Materials Science and Engineering &, National Institute for Advanced Materials Nankai University Tianjin 300350 China
  7. Department of Physics and Astronomy California State University Northridge CA 91330 USA
  8. Center for Functional Nanomaterials Brookhaven National Laboratory Upton NY 11973 USA, Current address: Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1562320
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Angewandte Chemie (International Edition)
Additional Journal Information:
Journal Name: Angewandte Chemie (International Edition) Journal Volume: 58 Journal Issue: 43; Journal ID: ISSN 1433-7851
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
Germany
Language:
English

Citation Formats

Liang, Jiashun, Li, Na, Zhao, Zhonglong, Ma, Liang, Wang, Xiaoming, Li, Shenzhou, Liu, Xuan, Wang, Tanyuan, Du, Yaping, Lu, Gang, Han, Jiantao, Huang, Yunhui, Su, Dong, and Li, Qing. Tungsten‐Doped L1 0 ‐PtCo Ultrasmall Nanoparticles as a High‐Performance Fuel Cell Cathode. Germany: N. p., 2019. Web. doi:10.1002/anie.201908824.
Liang, Jiashun, Li, Na, Zhao, Zhonglong, Ma, Liang, Wang, Xiaoming, Li, Shenzhou, Liu, Xuan, Wang, Tanyuan, Du, Yaping, Lu, Gang, Han, Jiantao, Huang, Yunhui, Su, Dong, & Li, Qing. Tungsten‐Doped L1 0 ‐PtCo Ultrasmall Nanoparticles as a High‐Performance Fuel Cell Cathode. Germany. https://doi.org/10.1002/anie.201908824
Liang, Jiashun, Li, Na, Zhao, Zhonglong, Ma, Liang, Wang, Xiaoming, Li, Shenzhou, Liu, Xuan, Wang, Tanyuan, Du, Yaping, Lu, Gang, Han, Jiantao, Huang, Yunhui, Su, Dong, and Li, Qing. Tue . "Tungsten‐Doped L1 0 ‐PtCo Ultrasmall Nanoparticles as a High‐Performance Fuel Cell Cathode". Germany. https://doi.org/10.1002/anie.201908824.
@article{osti_1562320,
title = {Tungsten‐Doped L1 0 ‐PtCo Ultrasmall Nanoparticles as a High‐Performance Fuel Cell Cathode},
author = {Liang, Jiashun and Li, Na and Zhao, Zhonglong and Ma, Liang and Wang, Xiaoming and Li, Shenzhou and Liu, Xuan and Wang, Tanyuan and Du, Yaping and Lu, Gang and Han, Jiantao and Huang, Yunhui and Su, Dong and Li, Qing},
abstractNote = {Abstract The commercialization of proton exchange membrane fuel cells (PEMFCs) relies on highly active and stable electrocatalysts for oxygen reduction reaction (ORR) in acid media. The most successful catalysts for this reaction are nanostructured Pt‐alloy with a Pt‐skin. The synthesis of ultrasmall and ordered L1 0 ‐PtCo nanoparticle ORR catalysts further doped with a few percent of metals (W, Ga, Zn) is reported. Compared to commercial Pt/C catalyst, the L1 0 ‐W‐PtCo/C catalyst shows significant improvement in both initial activity and high‐temperature stability. The L1 0 ‐W‐PtCo/C catalyst achieves high activity and stability in the PEMFC after 50 000 voltage cycles at 80 °C, which is superior to the DOE 2020 targets. EXAFS analysis and density functional theory calculations reveal that W doping not only stabilizes the ordered intermetallic structure, but also tunes the Pt‐Pt distances in such a way to optimize the binding energy between Pt and O intermediates on the surface.},
doi = {10.1002/anie.201908824},
journal = {Angewandte Chemie (International Edition)},
number = 43,
volume = 58,
place = {Germany},
year = {Tue Sep 17 00:00:00 EDT 2019},
month = {Tue Sep 17 00:00:00 EDT 2019}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1002/anie.201908824

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Cited by: 143 works
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