dc.contributor.author
Herran, Matias
dc.contributor.author
Juergensen, Sabrina
dc.contributor.author
Kessens, Moritz
dc.contributor.author
Hoeing, Dominik
dc.contributor.author
Köppen, Andrea
dc.contributor.author
Sousa-Castillo, Ana
dc.contributor.author
Parak, Wolfgang J.
dc.contributor.author
Lange, Holger
dc.contributor.author
Reich, Stephanie
dc.contributor.author
Schulz, Florian
dc.date.accessioned
2024-01-19T09:47:57Z
dc.date.available
2024-01-19T09:47:57Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/42113
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-41838
dc.description.abstract
Sunlight-driven H-2 generation is a central technology to tackle our impending carbon-based energy collapse. Colloidal photocatalysts consisting of plasmonic and catalytic nanoparticles are promising for H-2 production at solar irradiances, but their performance is hindered by absorption and multiscattering events. Here we present a two-dimensional bimetallic catalyst by incorporating platinum nanoparticles into a well-defined supercrystal of gold nanoparticles. The bimetallic supercrystal exhibited an H-2 generation rate of 139mmolg(cat)(-1)h(-1) via formic acid dehydrogenation under visible light illumination and solar irradiance. This configuration makes it possible to study the interaction between the two metallic materials and the influence of this in catalysis. We observe a correlation between the intensity of the electric field in the hotspots and the boosted catalytic activity of platinum nanoparticles, while identifying a minor role of heat and gold-to-platinum charge transfer in the enhancement. Our results demonstrate the benefits of two-dimensional configurations with optimized architecture for liquid-phase photocatalysis.
en
dc.format.extent
10 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
Catalyst synthesis
en
dc.subject
Devices for energy harvesting
en
dc.subject
Hydrogen fuel
en
dc.subject
Synthesis and processing
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften
dc.title
Plasmonic bimetallic two-dimensional supercrystals for H2 generation
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.doi
10.1038/s41929-023-01053-9
dcterms.bibliographicCitation.journaltitle
Nature Catalysis
dcterms.bibliographicCitation.number
12
dcterms.bibliographicCitation.pagestart
1205
dcterms.bibliographicCitation.pageend
1214
dcterms.bibliographicCitation.volume
6
dcterms.bibliographicCitation.url
https://doi.org/10.1038/s41929-023-01053-9
refubium.affiliation
Physik
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
2520-1158
refubium.resourceType.provider
WoS-Alert