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Nanofluidic Trappin...
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Levin, Sune,1991Chalmers tekniska högskola,Chalmers University of Technology
(author)
Nanofluidic Trapping of Faceted Colloidal Nanocrystals for Parallel Single-Particle Catalysis
- Article/chapterEnglish2022
Publisher, publication year, extent ...
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2022-09-02
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American Chemical Society (ACS),2022
Numbers
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LIBRIS-ID:oai:gup.ub.gu.se/318985
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https://gup.ub.gu.se/publication/318985URI
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https://doi.org/10.1021/acsnano.2c06505DOI
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https://research.chalmers.se/publication/532248URI
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Catalyst activity can depend distinctly on nano -particle size and shape. Therefore, understanding the structure sensitivity of catalytic reactions is of fundamental and technical importance. Experiments with single-particle resolution, where ensemble-averaging is eliminated, are required to study it. Here, we implement the selective trapping of individual spherical, cubic, and octahedral colloidal Au nanocrystals in 100 parallel nanofluidic channels to determine their activity for fluorescein reduction by sodium borohydride using fluorescence microscopy. As the main result, we identify distinct structure sensitivity of the rate-limiting borohydride oxidation step originating from different edge site abundance on the three particle types, as confirmed by first -principles calculations. This advertises nanofluidic reactors for the study of structure-function correlations in catalysis and identifies nanoparticle shape as a key factor in borohydride-mediated catalytic reactions.
Subject headings and genre
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Lerch, Sarah,1990Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)lerch
(author)
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Boje, Astrid,1991Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)bojea
(author)
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Fritzsche, Joachim,1977Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)joafri
(author)
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Kesarimangalam, Sriram,1983Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)sriramk
(author)
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Ström, Henrik,1981Chalmers tekniska högskola,Chalmers University of Technology,Norges teknisk-naturvitenskapelige universitet (NTNU),Norwegian University of Science and Technology (NTNU)(Swepub:cth)k00sthe
(author)
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Moth-Poulsen, Kasper,1978Chalmers tekniska högskola,Chalmers University of Technology,Institucio Catalana de Recerca i Estudis Avancats (ICREA),Catalan Institution for Research and Advanced Studies (ICREA),Institut de Ciència de Materials de Barcelona (ICMAB-CSIC),Institute of Material Science of Barcelona (ICMAB)(Swepub:cth)mkasper
(author)
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Sundén, Henrik,1978Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,University of Gothenburg,Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)sundenh
(author)
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Hellman, Anders,1974Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)ahell
(author)
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Westerlund, Fredrik,1978Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)fredrikw
(author)
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Langhammer, Christoph,1978Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)clangham
(author)
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Chalmers tekniska högskolaNorges teknisk-naturvitenskapelige universitet (NTNU)
(creator_code:org_t)
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In:Acs Nano: American Chemical Society (ACS)16:9, s. 15206-152141936-08511936-086X
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