Preserving surface strain in nanocatalysts via morphology control

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dc.citation.articleNumbereadp3788en_US
dc.citation.issueNumber39en_US
dc.citation.journalTitleScience Advancesen_US
dc.citation.volumeNumber10en_US
dc.contributor.authorShi, Chuqiaoen_US
dc.contributor.authorCheng, Zhihuaen_US
dc.contributor.authorLeonardi, Albertoen_US
dc.contributor.authorYang, Yaoen_US
dc.contributor.authorEngel, Michaelen_US
dc.contributor.authorJones, Matthew R.en_US
dc.contributor.authorHan, Yimoen_US
dc.date.accessioned2024-10-29T14:11:23Zen_US
dc.date.available2024-10-29T14:11:23Zen_US
dc.date.issued2024en_US
dc.description.abstractEngineering strain critically affects the properties of materials and has extensive applications in semiconductors and quantum systems. However, the deployment of strain-engineered nanocatalysts faces challenges, in particular in maintaining highly strained nanocrystals under reaction conditions. Here, we introduce a morphology-dependent effect that stabilizes surface strain even under harsh reaction conditions. Using four-dimensional scanning transmission electron microscopy (4D-STEM), we found that cube-shaped core-shell Au@Pd nanoparticles with sharp-edged morphologies sustain coherent heteroepitaxial interfaces with larger critical thicknesses than morphologies with rounded edges. This configuration inhibits dislocation nucleation due to reduced shear stress at corners, as indicated by molecular dynamics simulations. A Suzuki-type cross-coupling reaction shows that our approach achieves a fourfold increase in activity over conventional nanocatalysts, owing to the enhanced stability of surface strain. These findings contribute to advancing the development of advanced nanocatalysts and indicate broader applications for strain engineering in various fields.en_US
dc.identifier.citationShi, C., Cheng, Z., Leonardi, A., Yang, Y., Engel, M., Jones, M. R., & Han, Y. (2024). Preserving surface strain in nanocatalysts via morphology control. Science Advances, 10(39), eadp3788. https://doi.org/10.1126/sciadv.adp3788en_US
dc.identifier.digitalsciadv-adp3788en_US
dc.identifier.doihttps://doi.org/10.1126/sciadv.adp3788en_US
dc.identifier.urihttps://hdl.handle.net/1911/117968en_US
dc.language.isoengen_US
dc.publisherAAASen_US
dc.rightsExcept where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial (CC BY-NC) license.  Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/en_US
dc.titlePreserving surface strain in nanocatalysts via morphology controlen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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