Enhanced Solar-to-Hydrogen Generation with Broadband Epsilon-Near-Zero Nanostructured Photocatalysts

Handle URI:
http://hdl.handle.net/10754/623488
Title:
Enhanced Solar-to-Hydrogen Generation with Broadband Epsilon-Near-Zero Nanostructured Photocatalysts
Authors:
Tian, Yi ( 0000-0003-3067-9571 ) ; García de Arquer, Francisco Pelayo; Dinh, Cao-Thang; Favraud, Gael ( 0000-0002-3671-8925 ) ; Bonifazi, Marcella; Li, Jun; Liu, Min; Zhang, Xixiang ( 0000-0002-3478-6414 ) ; Zheng, Xueli; Kibria, Md. Golam; Hoogland, Sjoerd; Sinton, David; Sargent, Edward H.; Fratalocchi, Andrea ( 0000-0001-6769-4439 )
Abstract:
The direct conversion of solar energy into fuels or feedstock is an attractive approach to address increasing demand of renewable energy sources. Photocatalytic systems relying on the direct photoexcitation of metals have been explored to this end, a strategy that exploits the decay of plasmonic resonances into hot carriers. An efficient hot carrier generation and collection requires, ideally, their generation to be enclosed within few tens of nanometers at the metal interface, but it is challenging to achieve this across the broadband solar spectrum. Here the authors demonstrate a new photocatalyst for hydrogen evolution based on metal epsilon-near-zero metamaterials. The authors have designed these to achieve broadband strong light confinement at the metal interface across the entire solar spectrum. Using electron energy loss spectroscopy, the authors prove that hot carriers are generated in a broadband fashion within 10 nm in this system. The resulting photocatalyst achieves a hydrogen production rate of 9.5 µmol h-1  cm-2 that exceeds, by a factor of 3.2, that of the best previously reported plasmonic-based photocatalysts for the dissociation of H2 with 50 h stable operation.
KAUST Department:
Applied Mathematics and Computational Science Program; Electrical Engineering Program; PRIMALIGHT Research Group; Physical Sciences and Engineering (PSE) Division
Citation:
Tian Y, García de Arquer FP, Dinh C-T, Favraud G, Bonifazi M, et al. (2017) Enhanced Solar-to-Hydrogen Generation with Broadband Epsilon-Near-Zero Nanostructured Photocatalysts. Advanced Materials: 1701165. Available: http://dx.doi.org/10.1002/adma.201701165.
Publisher:
Wiley-Blackwell
Journal:
Advanced Materials
KAUST Grant Number:
OSR-2016-CRG5-2995
Issue Date:
8-May-2017
DOI:
10.1002/adma.201701165
Type:
Article
ISSN:
0935-9648
Sponsors:
Y.T. and F.P.G.d.A. contributed equally to this work. For the computer time, the authors used the resources of the KAUST Supercomputing Laboratory and the Redragon cluster of the Primalight group. This work was supported by KAUST (Award No. OSR-2016-CRG5-2995), the Ontario Research Fund-Research Excellence Program, the Natural Sciences and Engineering Research Council (NSERC) of Canada, and the Connaught Global Challenges program of the University of Toronto.
Additional Links:
http://onlinelibrary.wiley.com/doi/10.1002/adma.201701165/full
Appears in Collections:
Articles; Applied Mathematics and Computational Science Program; Physical Sciences and Engineering (PSE) Division; PRIMALIGHT Research Group; Electrical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorTian, Yien
dc.contributor.authorGarcía de Arquer, Francisco Pelayoen
dc.contributor.authorDinh, Cao-Thangen
dc.contributor.authorFavraud, Gaelen
dc.contributor.authorBonifazi, Marcellaen
dc.contributor.authorLi, Junen
dc.contributor.authorLiu, Minen
dc.contributor.authorZhang, Xixiangen
dc.contributor.authorZheng, Xuelien
dc.contributor.authorKibria, Md. Golamen
dc.contributor.authorHoogland, Sjoerden
dc.contributor.authorSinton, Daviden
dc.contributor.authorSargent, Edward H.en
dc.contributor.authorFratalocchi, Andreaen
dc.date.accessioned2017-05-14T12:03:57Z-
dc.date.available2017-05-14T12:03:57Z-
dc.date.issued2017-05-08en
dc.identifier.citationTian Y, García de Arquer FP, Dinh C-T, Favraud G, Bonifazi M, et al. (2017) Enhanced Solar-to-Hydrogen Generation with Broadband Epsilon-Near-Zero Nanostructured Photocatalysts. Advanced Materials: 1701165. Available: http://dx.doi.org/10.1002/adma.201701165.en
dc.identifier.issn0935-9648en
dc.identifier.doi10.1002/adma.201701165en
dc.identifier.urihttp://hdl.handle.net/10754/623488-
dc.description.abstractThe direct conversion of solar energy into fuels or feedstock is an attractive approach to address increasing demand of renewable energy sources. Photocatalytic systems relying on the direct photoexcitation of metals have been explored to this end, a strategy that exploits the decay of plasmonic resonances into hot carriers. An efficient hot carrier generation and collection requires, ideally, their generation to be enclosed within few tens of nanometers at the metal interface, but it is challenging to achieve this across the broadband solar spectrum. Here the authors demonstrate a new photocatalyst for hydrogen evolution based on metal epsilon-near-zero metamaterials. The authors have designed these to achieve broadband strong light confinement at the metal interface across the entire solar spectrum. Using electron energy loss spectroscopy, the authors prove that hot carriers are generated in a broadband fashion within 10 nm in this system. The resulting photocatalyst achieves a hydrogen production rate of 9.5 µmol h-1  cm-2 that exceeds, by a factor of 3.2, that of the best previously reported plasmonic-based photocatalysts for the dissociation of H2 with 50 h stable operation.en
dc.description.sponsorshipY.T. and F.P.G.d.A. contributed equally to this work. For the computer time, the authors used the resources of the KAUST Supercomputing Laboratory and the Redragon cluster of the Primalight group. This work was supported by KAUST (Award No. OSR-2016-CRG5-2995), the Ontario Research Fund-Research Excellence Program, the Natural Sciences and Engineering Research Council (NSERC) of Canada, and the Connaught Global Challenges program of the University of Toronto.en
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/adma.201701165/fullen
dc.subjectArtificial Photosynthesisen
dc.subjectHot Electron Generationen
dc.subjectHydrogen Generation, Photocatalystsen
dc.titleEnhanced Solar-to-Hydrogen Generation with Broadband Epsilon-Near-Zero Nanostructured Photocatalystsen
dc.typeArticleen
dc.contributor.departmentApplied Mathematics and Computational Science Programen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentPRIMALIGHT Research Groupen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalAdvanced Materialsen
dc.contributor.institutionDepartment of Electrical and Computer Engineering; University of Toronto; 35 St. George Street Toronto Ontario M5S 1A4 Canadaen
dc.contributor.institutionDepartment of Mechanical and Industrial Engineering; University of Toronto; 5 Kings College Road Toronto Ontario M5S 3G8 Canadaen
kaust.authorTian, Yien
kaust.authorFavraud, Gaelen
kaust.authorBonifazi, Marcellaen
kaust.authorLi, Junen
kaust.authorZhang, Xixiangen
kaust.authorFratalocchi, Andreaen
kaust.grant.numberOSR-2016-CRG5-2995en
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