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Embedding biocataly...
Embedding biocatalysts in a redox polymer enhances the performance of dye-sensitized photocathodes in bias-free photoelectrochemical water splitting
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- Cheng, Fangwen (author)
- Uppsala universitet,Fysikalisk kemi
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- Pavliuk, Olha (author)
- Uppsala universitet,Molekylär biomimetik
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- Hardt, Steffen (author)
- Forschungszentrum Julich GmbH, Inst Energy & Climate Res, Fundamental Electrochem IEK 9, Wilhelm Johnen Str, D-52425 Julich, Germany.
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- Hunt, Leigh Anna (author)
- Uppsala universitet,Fysikalisk kemi
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- Cai, Bin (author)
- Uppsala universitet,Fysikalisk kemi
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- Kubart, Tomas, 1977- (author)
- Uppsala universitet,Fasta tillståndets elektronik
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- Hammarström, Leif, 1964- (author)
- Uppsala universitet,Fysikalisk kemi
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- Plumeré, Nicolas (author)
- Tech Univ Munich, TUM Campus Straubing Biotechnol & Sustainabil, Ufer Str 53, D-94315 Straubing, Germany.
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- Berggren, Gustav (author)
- Uppsala universitet,Molekylär biomimetik
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- Tian, Haining, 1983- (author)
- Uppsala universitet,Fysikalisk kemi
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(creator_code:org_t)
- Springer Nature, 2024
- 2024
- English.
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In: Nature Communications. - : Springer Nature. - 2041-1723. ; 15:1
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https://uu.diva-port... (primary) (Raw object)
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Abstract
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- Dye-sensitized photoelectrodes consisting of photosensitizers and molecular catalysts with tunable structures and adjustable energy levels are attractive for low-cost and eco-friendly solar-assisted synthesis of energy rich products. Despite these advantages, dye-sensitized NiO photocathodes suffer from severe electron-hole recombination and facile molecule detachment, limiting photocurrent and stability in photoelectrochemical water-splitting devices. In this work, we develop an efficient and robust biohybrid dye-sensitized NiO photocathode, in which the intermolecular charge transfer is enhanced by a redox polymer. Owing to efficient assisted electron transfer from the dye to the catalyst, the biohybrid NiO photocathode showed a satisfactory photocurrent of 141±17 μA·cm−2 at neutral pH at 0 V versus reversible hydrogen electrode and a stable continuous output within 5 h. This photocathode is capable of driving overall water splitting in combination with a bismuth vanadate photoanode, showing distinguished solar-to-hydrogen efficiency among all reported water-splitting devices based on dye-sensitized photocathodes. These findings demonstrate the opportunity of building green biohybrid systems for artificial synthesis of solar fuels.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Cheng, Fangwen
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Pavliuk, Olha
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Hardt, Steffen
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Hunt, Leigh Anna
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Cai, Bin
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Kubart, Tomas, 1 ...
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show more...
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Hammarström, Lei ...
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Plumeré, Nicolas
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Berggren, Gustav
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Tian, Haining, 1 ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Physical Chemist ...
- Articles in the publication
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Nature Communica ...
- By the university
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Uppsala University