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Overcoming small-ba...
Overcoming small-bandgap charge recombination in visible and NIR-light-driven hydrogen evolution by engineering the polymer photocatalyst structure
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- Elsayed, Mohamed Hammad (author)
- National Tsing Hua University,National Taiwan University
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- Abdellah, Mohamed (author)
- Lund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,LU profilområde: Ljus och material,Lunds universitets profilområden,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,LU Profile Area: Light and Materials,Lund University Profile areas,United Arab Emirates University,South Valley University
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Alhakemy, Ahmed Zaki (author)
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- Mekhemer, Islam M.A. (author)
- National Tsing Hua University
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Aboubakr, Ahmed Esmail A. (author)
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- Chen, Bo Han (author)
- National Tsing Hua University
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- Sabbah, Amr (author)
- National Taiwan University
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- Lin, Kun Han (author)
- National Tsing Hua University
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- Chiu, Wen Sheng (author)
- National Chung-Hsing University
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- Lin, Sheng Jie (author)
- National Chung-Hsing University
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- Chu, Che Yi (author)
- National Chung-Hsing University
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- Lu, Chih Hsuan (author)
- National Tsing Hua University
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- Yang, Shang Da (author)
- National Tsing Hua University
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- Mohamed, Mohamed Gamal (author)
- National Sun Yat-sen University
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- Kuo, Shiao Wei (author)
- National Sun Yat-sen University
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Hung, Chen Hsiung (author)
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- Chen, Li Chyong (author)
- National Taiwan University
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- Chen, Kuei Hsien (author)
- National Taiwan University
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- Chou, Ho Hsiu (author)
- National Tsing Hua University
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(creator_code:org_t)
- 2024
- 2024
- English.
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In: Nature Communications. - 2041-1723. ; 15:1
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Abstract
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- Designing an organic polymer photocatalyst for efficient hydrogen evolution with visible and near-infrared (NIR) light activity is still a major challenge. Unlike the common behavior of gradually increasing the charge recombination while shrinking the bandgap, we present here a series of polymer nanoparticles (Pdots) based on ITIC and BTIC units with different π-linkers between the acceptor-donor-acceptor (A-D-A) repeated moieties of the polymer. These polymers act as an efficient single polymer photocatalyst for H2 evolution under both visible and NIR light, without combining or hybridizing with other materials. Importantly, the difluorothiophene (ThF) π-linker facilitates the charge transfer between acceptors of different repeated moieties (A-D-A-(π-Linker)-A-D-A), leading to the enhancement of charge separation between D and A. As a result, the PITIC-ThF Pdots exhibit superior hydrogen evolution rates of 279 µmol/h and 20.5 µmol/h with visible (>420 nm) and NIR (>780 nm) light irradiation, respectively. Furthermore, PITIC-ThF Pdots exhibit a promising apparent quantum yield (AQY) at 700 nm (4.76%).
Subject headings
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
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- art (subject category)
- ref (subject category)
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Elsayed, Mohamed ...
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Abdellah, Mohame ...
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Alhakemy, Ahmed ...
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Mekhemer, Islam ...
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Aboubakr, Ahmed ...
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Chen, Bo Han
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show more...
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Sabbah, Amr
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Lin, Kun Han
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Chiu, Wen Sheng
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Lin, Sheng Jie
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Chu, Che Yi
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Lu, Chih Hsuan
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Yang, Shang Da
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Mohamed, Mohamed ...
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Kuo, Shiao Wei
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Hung, Chen Hsiun ...
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Chen, Li Chyong
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Chen, Kuei Hsien
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Chou, Ho Hsiu
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Polymer Chemistr ...
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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 ...
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Nature Communica ...
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Lund University