Size‐Dependent Photocatalytic Reactivity of Conjugated Microporous Polymer Nanoparticles
Abstract: Particle size is a critical factor for improving photocatalytic reactivity of conjugated microporous polymers (CMPs) as mass transfer in the porous materials is often the rate‐limiting step. However, due to the synthetic challenge of controlling the size of CMPs, the impact of particle size is yet to be investigated. To address this problem, a simple and versatile dispersion polymerization route that can synthesize dispersible CMP nanoparticles with controlled size from 15 to 180 nm is proposed. Leveraging the precise control of the size, it is demonstrated that smaller CMP nanoparticles have dramatically higher photocatalytic reactivity in various organic transformations, achieving more than 1000% enhancement in the reaction rates by decreasing the size from 180 to 15 nm. The size‐dependent photocatalytic reactivity is further scrutinized using a kinetic model and transient absorption spectroscopy, revealing that only the initial 5 nm‐thick surface layer of CMP nanoparticles is involved in the photocatalytic reactions because of internal mass transfer limitations. This finding substantiates the potential of small CMP nanoparticles to efficiently use photo‐generated excitons and improve energy‐efficiency of numerous photocatalytic reactions.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Size‐Dependent Photocatalytic Reactivity of Conjugated Microporous Polymer Nanoparticles ; day:04 ; month:07 ; year:2024 ; extent:13
Advanced materials ; (04.07.2024) (gesamt 13)
- Creator
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Kim, Seunghyeon
Zhou, Xin
Li, Yungui
Yang, Qiqi
Liu, Xiaomin
Graf, Robert
Blom, P. W. M.
Ferguson, Calum T. J.
Landfester, Katharina
- DOI
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10.1002/adma.202404054
- URN
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urn:nbn:de:101:1-2407081428109.517496359634
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:49 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Kim, Seunghyeon
- Zhou, Xin
- Li, Yungui
- Yang, Qiqi
- Liu, Xiaomin
- Graf, Robert
- Blom, P. W. M.
- Ferguson, Calum T. J.
- Landfester, Katharina
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