Accelerating charge transfer via nonconjugated polyelectrolyte interlayers toward efficient versatile photoredox catalysis
One of the challenges for high-efficiency single-component-based photoredox catalysts is the low charge transfer and extraction due to the high recombination rate. Here, we demonstrate a strategy to precisely control the charge separation and transport efficiency of the catalytic host by introducing...
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Nature Research
2023
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| author | Li T. Feng C. Yap B.K. Zhu X. Xiong B. He Z. Wong W.-Y. |
| author2 | 57113889100 |
| author_facet | 57113889100 Li T. Feng C. Yap B.K. Zhu X. Xiong B. He Z. Wong W.-Y. |
| author_sort | Li T. |
| building | UNITEN Library |
| collection | Institutional Repository |
| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | One of the challenges for high-efficiency single-component-based photoredox catalysts is the low charge transfer and extraction due to the high recombination rate. Here, we demonstrate a strategy to precisely control the charge separation and transport efficiency of the catalytic host by introducing electron or hole extraction interlayers to improve the catalytic efficiency. We use simple and easily available non-conjugated polyelectrolytes (NCPs) (i.e., polyethyleneimine, PEI; poly(allylamine hydrochloride), PAH) to form interlayers, wherein such NCPs consist of the nonconjugated backbone with charge transporting functional groups. Taking CdS as examples, it is shown that although PEI and PAH are insulators and therefore do not have the ability to conduct electricity, they can form good electron or hole transport extraction layers due to the higher charge-transfer kinetics of pendant groups along the backbones, thereby greatly improving the charge transfer capability of CdS. Consequently, the resultant PEI-/PAH-functionalized nanocomposites exhibit significantly enhanced and versatile photoredox catalysis. � 2021, The Author(s). |
| format | Article |
| id | my.uniten.dspace-25874 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2023 |
| publisher | Nature Research |
| record_format | dspace |
| spelling | my.uniten.dspace-258742023-05-29T17:05:22Z Accelerating charge transfer via nonconjugated polyelectrolyte interlayers toward efficient versatile photoredox catalysis Li T. Feng C. Yap B.K. Zhu X. Xiong B. He Z. Wong W.-Y. 57113889100 57221980511 26649255900 14029419400 55570895400 35364405700 7403972153 One of the challenges for high-efficiency single-component-based photoredox catalysts is the low charge transfer and extraction due to the high recombination rate. Here, we demonstrate a strategy to precisely control the charge separation and transport efficiency of the catalytic host by introducing electron or hole extraction interlayers to improve the catalytic efficiency. We use simple and easily available non-conjugated polyelectrolytes (NCPs) (i.e., polyethyleneimine, PEI; poly(allylamine hydrochloride), PAH) to form interlayers, wherein such NCPs consist of the nonconjugated backbone with charge transporting functional groups. Taking CdS as examples, it is shown that although PEI and PAH are insulators and therefore do not have the ability to conduct electricity, they can form good electron or hole transport extraction layers due to the higher charge-transfer kinetics of pendant groups along the backbones, thereby greatly improving the charge transfer capability of CdS. Consequently, the resultant PEI-/PAH-functionalized nanocomposites exhibit significantly enhanced and versatile photoredox catalysis. � 2021, The Author(s). Final 2023-05-29T09:05:22Z 2023-05-29T09:05:22Z 2021 Article 10.1038/s42004-021-00589-w 2-s2.0-85117722518 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117722518&doi=10.1038%2fs42004-021-00589-w&partnerID=40&md5=1bed01474be45b52b44b346cb84a7ef9 https://irepository.uniten.edu.my/handle/123456789/25874 4 1 150 All Open Access, Gold, Green Nature Research Scopus |
| spellingShingle | Li T. Feng C. Yap B.K. Zhu X. Xiong B. He Z. Wong W.-Y. Accelerating charge transfer via nonconjugated polyelectrolyte interlayers toward efficient versatile photoredox catalysis |
| title | Accelerating charge transfer via nonconjugated polyelectrolyte interlayers toward efficient versatile photoredox catalysis |
| title_full | Accelerating charge transfer via nonconjugated polyelectrolyte interlayers toward efficient versatile photoredox catalysis |
| title_fullStr | Accelerating charge transfer via nonconjugated polyelectrolyte interlayers toward efficient versatile photoredox catalysis |
| title_full_unstemmed | Accelerating charge transfer via nonconjugated polyelectrolyte interlayers toward efficient versatile photoredox catalysis |
| title_short | Accelerating charge transfer via nonconjugated polyelectrolyte interlayers toward efficient versatile photoredox catalysis |
| title_sort | accelerating charge transfer via nonconjugated polyelectrolyte interlayers toward efficient versatile photoredox catalysis |
| url_provider | http://dspace.uniten.edu.my/ |