Harvesting solar light with crystalline carbon nitrides for efficient photocatalytic hydrogen evolution

Handle URI:
http://hdl.handle.net/10754/563705
Title:
Harvesting solar light with crystalline carbon nitrides for efficient photocatalytic hydrogen evolution
Authors:
Bhunia, Manas Kumar ( 0000-0001-6884-8217 ) ; Yamauchi, Kazuo; Takanabe, Kazuhiro ( 0000-0001-5374-9451 )
Abstract:
Described herein is the photocatalytic hydrogen evolution using crystalline carbon nitrides (CNs) obtained by supramolecular aggregation followed by ionic melt polycondensation (IMP) using melamine and 2,4,6-triaminopyrimidine as a dopant. The solid state NMR spectrum of 15N-enriched CN confirms the triazine as a building unit. Controlling the amount and arrangements of dopants in the CN structure can dramatically enhance the photocatalytic performance for H2 evolution. The polytriazine imide (PTI) exhibits the apparent quantum efficiency (AQE) of 15% at 400 nm. This method successfully enables a substantial amount of visible light to be harvested for H2 evolution, and provides a promising route for the rational design of a variety of highly active crystalline CN photocatalysts. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
KAUST Department:
KAUST Catalysis Center (KCC); Physical Sciences and Engineering (PSE) Division; Advanced Nanofabrication, Imaging and Characterization Core Lab; Chemical Science Program; Core Labs; Catalysis for Energy Conversion (CatEC)
Publisher:
Wiley-Blackwell
Journal:
Angewandte Chemie International Edition
Issue Date:
14-Aug-2014
DOI:
10.1002/anie.201405161
Type:
Article
ISSN:
14337851
Sponsors:
The research reported in this publication was supported by the King Abdullah University of Science and Technology. Dr. Dalaver H. Anjum and Mr. Shuo Liu are acknowledged for TEM and SEM measurements, respectively.
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorBhunia, Manas Kumaren
dc.contributor.authorYamauchi, Kazuoen
dc.contributor.authorTakanabe, Kazuhiroen
dc.date.accessioned2015-08-03T12:07:07Zen
dc.date.available2015-08-03T12:07:07Zen
dc.date.issued2014-08-14en
dc.identifier.issn14337851en
dc.identifier.doi10.1002/anie.201405161en
dc.identifier.urihttp://hdl.handle.net/10754/563705en
dc.description.abstractDescribed herein is the photocatalytic hydrogen evolution using crystalline carbon nitrides (CNs) obtained by supramolecular aggregation followed by ionic melt polycondensation (IMP) using melamine and 2,4,6-triaminopyrimidine as a dopant. The solid state NMR spectrum of 15N-enriched CN confirms the triazine as a building unit. Controlling the amount and arrangements of dopants in the CN structure can dramatically enhance the photocatalytic performance for H2 evolution. The polytriazine imide (PTI) exhibits the apparent quantum efficiency (AQE) of 15% at 400 nm. This method successfully enables a substantial amount of visible light to be harvested for H2 evolution, and provides a promising route for the rational design of a variety of highly active crystalline CN photocatalysts. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en
dc.description.sponsorshipThe research reported in this publication was supported by the King Abdullah University of Science and Technology. Dr. Dalaver H. Anjum and Mr. Shuo Liu are acknowledged for TEM and SEM measurements, respectively.en
dc.publisherWiley-Blackwellen
dc.subjectCarbon nitrideen
dc.subjectHydrogen evolutionen
dc.subjectPhotocatalysisen
dc.subjectSemiconductorsen
dc.subjectSolar-energy conversionen
dc.titleHarvesting solar light with crystalline carbon nitrides for efficient photocatalytic hydrogen evolutionen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentCore Labsen
dc.contributor.departmentCatalysis for Energy Conversion (CatEC)en
dc.identifier.journalAngewandte Chemie International Editionen
kaust.authorBhunia, Manas Kumaren
kaust.authorYamauchi, Kazuoen
kaust.authorTakanabe, Kazuhiroen
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