Cited by 585Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceFuel Cells and Related Materials

Mastering the surface strain of platinum catalysts for efficient electrocatalysis

He, Tianou, Wang, Weicong, Shi, Fenglei, Yang, Xiaolong, Li, Xiang, Wu, Jianbo, Yin, Yadong, Jin, Mingshang·2021·Nature

Abstract

Platinum (Pt) has found wide use as an electrocatalyst for sustainable energy conversion systems 1-3. The activity of Pt is controlled by its electronic structure (typically, the d-band centre), which depends sensitively on lattice strain 4,5. This dependence can be exploited for catalyst design 4,6-8, and the use of core-shell structures and elastic substrates has resulted in strain-engineered Pt catalysts with drastically improved electrocatalytic performances 7,9-13. However, it is challenging to map in detail the strain-activity correlations in Pt-catalysed conversions, which can involve a number of distinct processes, and to identify the optimal strain modification for specific reactions. Here we show that when ultrathin Pt shells are deposited on palladium-based nanocubes, expansion and shrinkage of the nanocubes through phosphorization and dephosphorization induces strain in the Pt(100) lattice that can be adjusted from -5.1 per cent to 5.9 per cent. We use this strain control to tune the electrocatalytic activity of the Pt shells over a wide range, finding that the strain-activity correlation for the methanol oxidation reaction and hydrogen evolution reaction follows an M-shaped curve and a volcano-shaped curve, respectively. We anticipate that our approach can be used to screen out lattice strain that will optimize the performance of Pt catalysts-and potentially other metal catalysts-for a wide range of reactions.

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Crossref · 10.1038/s41586-021-03870-z

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Authors
He, T., Wang, W., Shi, F., Yang, X., Li, X., Wu, J., Yin, Y., & Jin, M.
Affiliations
  • State Key Laboratory of Multiphase Flow in Power Engineering (CN)
  • Shanghai Jiao Tong University (CN)
  • Chongqing University (CN)
  • Xi'an Technological University (CN)
  • University of California, Riverside (US)
Corresponding author
  • Wu, Jianbo
  • Yin, Yadong
  • Jin, Mingshang
Venue
Nature
Published
2021-10-06
Volume
598
Issue
7879
Pages
76-81
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W3202578456
Cited by
585
References
4
Citations by year
2026: 90 · 2025: 134 · 2024: 166 · 2023: 116 · 2022: 71 · 2021: 7
FWCI
16.89
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
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 › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
Keywords
platinum electrocatalysts, lattice strain engineering, surface strain, phosphorization, dephosphorization, palladium nanocubes, core-shell catalysts, methanol oxidation, hydrogen evolution reaction, Pt(100) surface, d-band center, volcano plot

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