Cargando…
Nanofluidic Trapping of Faceted Colloidal Nanocrystals for Parallel Single-Particle Catalysis
[Image: see text] Catalyst activity can depend distinctly on nanoparticle 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 req...
Autores principales: | , , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
|
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9527799/ https://www.ncbi.nlm.nih.gov/pubmed/36054658 http://dx.doi.org/10.1021/acsnano.2c06505 |
_version_ | 1784801152951386112 |
---|---|
author | Levin, Sune Lerch, Sarah Boje, Astrid Fritzsche, Joachim KK, Sriram Ström, Henrik Moth-Poulsen, Kasper Sundén, Henrik Hellman, Anders Westerlund, Fredrik Langhammer, Christoph |
author_facet | Levin, Sune Lerch, Sarah Boje, Astrid Fritzsche, Joachim KK, Sriram Ström, Henrik Moth-Poulsen, Kasper Sundén, Henrik Hellman, Anders Westerlund, Fredrik Langhammer, Christoph |
author_sort | Levin, Sune |
collection | PubMed |
description | [Image: see text] Catalyst activity can depend distinctly on nanoparticle 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. |
format | Online Article Text |
id | pubmed-9527799 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-95277992022-10-04 Nanofluidic Trapping of Faceted Colloidal Nanocrystals for Parallel Single-Particle Catalysis Levin, Sune Lerch, Sarah Boje, Astrid Fritzsche, Joachim KK, Sriram Ström, Henrik Moth-Poulsen, Kasper Sundén, Henrik Hellman, Anders Westerlund, Fredrik Langhammer, Christoph ACS Nano [Image: see text] Catalyst activity can depend distinctly on nanoparticle 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. American Chemical Society 2022-09-02 2022-09-27 /pmc/articles/PMC9527799/ /pubmed/36054658 http://dx.doi.org/10.1021/acsnano.2c06505 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Levin, Sune Lerch, Sarah Boje, Astrid Fritzsche, Joachim KK, Sriram Ström, Henrik Moth-Poulsen, Kasper Sundén, Henrik Hellman, Anders Westerlund, Fredrik Langhammer, Christoph Nanofluidic Trapping of Faceted Colloidal Nanocrystals for Parallel Single-Particle Catalysis |
title | Nanofluidic Trapping
of Faceted Colloidal Nanocrystals
for Parallel Single-Particle Catalysis |
title_full | Nanofluidic Trapping
of Faceted Colloidal Nanocrystals
for Parallel Single-Particle Catalysis |
title_fullStr | Nanofluidic Trapping
of Faceted Colloidal Nanocrystals
for Parallel Single-Particle Catalysis |
title_full_unstemmed | Nanofluidic Trapping
of Faceted Colloidal Nanocrystals
for Parallel Single-Particle Catalysis |
title_short | Nanofluidic Trapping
of Faceted Colloidal Nanocrystals
for Parallel Single-Particle Catalysis |
title_sort | nanofluidic trapping
of faceted colloidal nanocrystals
for parallel single-particle catalysis |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9527799/ https://www.ncbi.nlm.nih.gov/pubmed/36054658 http://dx.doi.org/10.1021/acsnano.2c06505 |
work_keys_str_mv | AT levinsune nanofluidictrappingoffacetedcolloidalnanocrystalsforparallelsingleparticlecatalysis AT lerchsarah nanofluidictrappingoffacetedcolloidalnanocrystalsforparallelsingleparticlecatalysis AT bojeastrid nanofluidictrappingoffacetedcolloidalnanocrystalsforparallelsingleparticlecatalysis AT fritzschejoachim nanofluidictrappingoffacetedcolloidalnanocrystalsforparallelsingleparticlecatalysis AT kksriram nanofluidictrappingoffacetedcolloidalnanocrystalsforparallelsingleparticlecatalysis AT stromhenrik nanofluidictrappingoffacetedcolloidalnanocrystalsforparallelsingleparticlecatalysis AT mothpoulsenkasper nanofluidictrappingoffacetedcolloidalnanocrystalsforparallelsingleparticlecatalysis AT sundenhenrik nanofluidictrappingoffacetedcolloidalnanocrystalsforparallelsingleparticlecatalysis AT hellmananders nanofluidictrappingoffacetedcolloidalnanocrystalsforparallelsingleparticlecatalysis AT westerlundfredrik nanofluidictrappingoffacetedcolloidalnanocrystalsforparallelsingleparticlecatalysis AT langhammerchristoph nanofluidictrappingoffacetedcolloidalnanocrystalsforparallelsingleparticlecatalysis |