Strain‐Enhanced Metallic Intermixing in Shape‐Controlled Multilayered Core–Shell Nanostructures: Toward Shaped Intermetallics Huang, Wenyu Williams, Benjamin Young, Allison Andoni, Ilektra Han, Yong Lo, Wei-Shang Evans, James Golden, Matthew Yang, Jane Lyu, Lian‐Ming Kuo, Chun-Hong Evans, James Huang, Wenyu Tsung, Chia-Kuang
dc.contributor.department Ames Laboratory
dc.contributor.department Physics and Astronomy
dc.contributor.department Chemistry 2020-09-24T20:48:40.000 2021-02-24T22:51:38Z 2021-02-24T22:51:38Z Wed Jan 01 00:00:00 UTC 2020 2021-03-20 2020-06-22
dc.description.abstract <p>Controlling the surface composition of shaped bimetallic nanoparticles could offer precise tunability of geometric and electronic surface structure for new nanocatalysts. To achieve this goal, a platform for studying the intermixing process in a shaped nanoparticle was designed, using multilayered Pd‐Ni‐Pt core–shell nanocubes as precursors. Under mild conditions, the intermixing between Ni and Pt could be tuned by changing layer thickness and number, triggering intermixing while preserving nanoparticle shape. Intermixing of the two metals is monitored using transmission electron microscopy. The surface structure evolution is characterized using electrochemical methanol oxidation. DFT calculations suggest that the low‐temperature mixing is enhanced by shorter diffusion lengths and strain introduced by the layered structure. The platform and insights presented are an advance toward the realization of shape‐controlled multimetallic nanoparticles tailored to each potential application.</p>
dc.description.comments <p>This is the peer-reviewed version of the following article: Williams, Benjamin P., Allison P. Young, Ilektra Andoni, Yong Han, Wei‐Shang Lo, Matthew Golden, Jane Yang, Lian‐Ming Lyu, Chun-Hong Kuo, James W. Evans, Wenyu Huang, and Chia-Kuang Tsung. "Strain‐Enhanced Metallic Intermixing in Shape‐Controlled Multilayered Core–Shell Nanostructures: Toward Shaped Intermetallics." <em>Angewandte Chemie International Edition</em> 59, no. 26 (2020): 10574-10580, which has been published in final form at DOI: <a href="" target="_blank">10.1002/anie.202001067</a>. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 2262
dc.identifier.contextkey 19532771
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath chem_pubs/1257
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 19:24:35 UTC 2022
dc.source.uri 10.1002/anie.202001067
dc.subject.disciplines Engineering Physics
dc.subject.disciplines Materials Chemistry
dc.subject.disciplines Nanoscience and Nanotechnology
dc.subject.keywords multilayered core–shell nanostructures
dc.subject.keywords shaped intermetallic nanoparticles
dc.subject.keywords strain-enhanced metallic intermixing
dc.title Strain‐Enhanced Metallic Intermixing in Shape‐Controlled Multilayered Core–Shell Nanostructures: Toward Shaped Intermetallics
dc.type article
dc.type.genre article
dspace.entity.type Publication
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