Cited by 1,642Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceCO2 Reduction Techniques and Catalysts

Biaxially strained PtPb/Pt core/shell nanoplate boosts oxygen reduction catalysis

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Bu, Lingzheng, Zhang, Nan, Guo, Shaojun, Zhang, Xu, Li, Jing, Yao, Jianlin, Wu, Tao, Lu, Gang +3 more·2016·Science

Abstract

An activity lift for platinum: Platinum is an excellent but expensive catalyst for the oxygen reduction reaction (ORR), which is critical for fuel cells. Alloying platinum with other metals can create shells of platinum on cores of less expensive metals, which increases its surface exposure, and compressive strain in the layer can also boost its activity (see the Perspective by Stephens et al. ). Bu et al. produced nanoplates—platinum-lead cores covered with platinum shells—that were in tensile strain. These nanoplates had high and stable ORR activity, which theory suggests arises from the strain optimizing the platinum-oxygen bond strength. Li et al. optimized both the amount of surface-exposed platinum and the specific activity. They made nanowires with a nickel oxide core and a platinum shell, annealed them to the metal alloy, and then leached out the nickel to form a rough surface. The mass activity was about double the best reported values from previous studies. Science , this issue p. 1410 , p. 1414 ; see also p. 1378

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Authors
Bu, L., Zhang, N., Guo, S., Zhang, X., Li, J., Yao, J., Wu, T., Lu, G., Ma, J.-Y., Su, D., & Huang, X.
Affiliations
  • Soochow University (CN)
  • Peking University (CN)
  • California State University, Northridge (US)
  • Brookhaven National Laboratory (US)
  • Department of Physics and Astronomy, California State University, Northridge, CA 91330, USA.
  • Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China.
Corresponding author
  • Guo, Shaojun
  • Su, Dong
  • Huang, Xiaoqing
Venue
Science
Published
2016-12-16
Volume
354
Issue
6318
Pages
1410-1414
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2564214658
Cited by
1,642
References
82
Citations by year
2026: 109 · 2025: 149 · 2024: 159 · 2023: 165 · 2022: 185 · 2021: 185 · 2020: 204 · 2019: 209 · 2018: 179 · 2017: 95 · 2016: 1
FWCI
43.74
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • California State University ScholarWorks (system-wide DSpace) (submittedVersion)
Funders
  • National Key Research and Development Program of China (2016YFB0100201)
  • National Natural Science Foundation of China (21571135, 51671003)
  • Ministry of Science and Technology (2016YFA0204100)
  • Soochow University
  • Peking University
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Materials Science › Materials Chemistry › Catalytic Processes in Materials Science
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
Keywords
oxygen reduction reaction, biaxial strain, electrocatalyst durability, mass activity

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