A Triad Photoanode for Visible Light-Driven Water Oxidation via Immobilization of Molecular Polyoxometalate on Polymeric Carbon Nitride
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- Ruihao Gong
- Dariusz Mitoraj
- Dandan Gao
- Manuel Mundszinger
- Dieter Sorsche
- Ute Kaiser
- Carsten Streb
- Radim Beranek
- Sven Rau
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000765827100001&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1002/adsu.202100473
- Externe Identifier
- Clarivate Analytics Document Solution ID: 1H0TZ
- ISSN
- 2366-7486
- Ausgabe der Veröffentlichung
- 5
- Zeitschrift
- ADVANCED SUSTAINABLE SYSTEMS
- Schlüsselwörter
- carbon nitride
- oxygen evolution
- photoelectrochemistry
- polyoxometalates
- water splitting
- Artikelnummer
- ARTN 2100473
- Datum der Veröffentlichung
- 2022
- Status
- Published
- Titel
- A Triad Photoanode for Visible Light-Driven Water Oxidation via Immobilization of Molecular Polyoxometalate on Polymeric Carbon Nitride
- Sub types
- Article
- Ausgabe der Zeitschrift
- 6
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Abstract
- <jats:title>Abstract</jats:title><jats:p>Due to their availability, low cost, nontoxicity, and tunability, polymeric carbon nitrides (CN<jats:sub>x</jats:sub>) represent one of the most attractive materials classes for the development of fully sustainable photo(electro)catalytic systems for solar‐driven water splitting. However, the development of CN<jats:sub>x</jats:sub>‐based photoanodes for visible light‐driven water oxidation to dioxygen is rather challenging, particularly due to issues related to photoelectrode stability and effective coupling of the light absorber with water oxidation catalysts. Herein, a triadic photoanode comprising a porous TiO<jats:sub>2</jats:sub> electron collector scaffold sensitized by CN<jats:sub>x</jats:sub> coupled to a molecular cobalt polyoxometalate (CoPOM <jats:bold>=</jats:bold> [Co<jats:sub>4</jats:sub>(H<jats:sub>2</jats:sub>O)<jats:sub>2</jats:sub>(PW<jats:sub>9</jats:sub>O<jats:sub>34</jats:sub>)<jats:sub>2</jats:sub>]<jats:sup>10</jats:sup>) catalyst is reported. Complete water oxidation to dioxygen under visible (λ <jats:bold>></jats:bold> 420 nm) light irradiation is demonstrated, with photocurrents down to relatively low bias potentials (0.2 V vs RHE). Furthermore, polyethyleneimine (PEI), a cationic polymer is shown to act as an effective and non‐sacrificial electrostatic linker for immobilization of the anionic CoPOM onto the negatively charged surface of CN<jats:sub>x</jats:sub>. The optimized deposition of CoPOM using the PEI linker translates directly into improved efficiency of the transfer of photogenerated holes to water molecules and to enhanced oxygen evolution. This work thus provides important design rules for effective immobilization of POM‐based catalysts into soft‐matter photoelectrocatalytic architectures for light‐driven water oxidation.</jats:p>
- Autoren
- Ruihao Gong
- Dariusz Mitoraj
- Dandan Gao
- Manuel Mundszinger
- Dieter Sorsche
- Ute Kaiser
- Carsten Streb
- Radim Beranek
- Sven Rau
- DOI
- 10.1002/adsu.202100473
- eISSN
- 2366-7486
- ISSN
- 2366-7486
- Ausgabe der Veröffentlichung
- 5
- Zeitschrift
- Advanced Sustainable Systems
- Sprache
- en
- Online publication date
- 2022
- Datum der Veröffentlichung
- 2022
- Status
- Published
- Herausgeber
- Wiley
- Herausgeber URL
- http://dx.doi.org/10.1002/adsu.202100473
- Datum der Datenerfassung
- 2023
- Titel
- A Triad Photoanode for Visible Light‐Driven Water Oxidation via Immobilization of Molecular Polyoxometalate on Polymeric Carbon Nitride
- Ausgabe der Zeitschrift
- 6
Datenquelle: Crossref
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