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Organic Polymer Dot...
Organic Polymer Dots as Photocatalysts for Visible Light-Driven Hydrogen Generation
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- Wang, Lei (författare)
- Uppsala universitet,Fysikalisk kemi
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- Fernández-Terán, Ricardo (författare)
- Uppsala universitet,Fysikalisk kemi
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- Zhang, Lei (författare)
- Uppsala universitet,Fysikalisk kemi
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- Fernandes, Daniel L. A. (författare)
- Uppsala universitet,Fysikalisk kemi
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- Tian, Lei (författare)
- Uppsala universitet,Fysikalisk kemi
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- Chen, Hong (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK),Stockholm Univ, Berzelii Ctr EXSELENT Porous Mat, S-10691 Stockholm, Sweden.;Stockholm Univ, Dept Mat & Environm Chem, S-10691 Stockholm, Sweden.
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- Tian, Haining (författare)
- Uppsala universitet,Fysikalisk kemi
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(creator_code:org_t)
- 2016-09-08
- 2016
- Engelska.
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Ingår i: Angewandte Chemie International Edition. - : Wiley. - 1433-7851 .- 1521-3773. ; 55:40, s. 12306-12310
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- For the first time, organic semiconducting polymer dots (Pdots) based on poly[(9,9'-dioctylfluorenyl-2,7-diyl)-co-(1,4-benzo-{2,1', 3} thiadiazole)] (PFBT) and polystyrene grafting with carboxyl-group-functionalized ethylene oxide (PS-PEG-COOH) are introduced as a photocatalyst towards visible-light-driven hydrogen generation in a completely organic solvent-free system. With these organic Pdots as the photocatalyst, an impressive initial rate constant of 8.3 mmol h(-1) g(-1) was obtained for visible-light-driven hydrogen production, which is 5-orders of magnitude higher than that of pristine PFBT polymer under the same catalytic conditions. Detailed kinetics studies suggest that the productive electron transfer quench of the excited state of Pdots by an electron donor is about 40%. More importantly, we also found that the Pdots can tolerate oxygen during catalysis, which is crucial for further application of this material for light-driven water splitting.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Nyckelord
- co-solvent-free
- hydrogen generation
- photocatalysts
- polymer dots
- visible light
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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