Facilitating Charge Separation of Donor–Acceptor Conjugated Microporous Polymers via Position Isomerism Strategy for Efficient CO2 Photoconversion DOI Open Access

Dandan Wang,

Xiaofei Yan,

Xinsheng Zhu

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(10), P. 659 - 659

Published: Sept. 24, 2024

Photoreduction of CO2 into the chemical feedstocks fuels provides a green way to help solve both energy crisis and carbon emission issues. Nevertheless, undesirable charge separation migration, as well rapid reverse recombination results in unsatisfactory photocatalytic activity most conjugated microporous polymers (CMPs). Herein, pair donor–acceptor (D-A) CMPs for photoconversion was developed through position isomerism by altering linkage sites. The show that Py-D27F with 2,7-site exhibits completely structure large molecular dipole moment, thus significantly accelerating transfer. As result, achieves higher yield 320.9 μmol g−1 h−1 CO2-to-CO photoreduction (without addition any photosensitizers precious metals), which is about three-fold greater than Py-D36F (3,6-site linkage). This study valuable idea exploring outstanding CMP photocatalysts efficient processing photocatalysis.

Language: Английский

Facilitating Charge Separation of Donor–Acceptor Conjugated Microporous Polymers via Position Isomerism Strategy for Efficient CO2 Photoconversion DOI Open Access

Dandan Wang,

Xiaofei Yan,

Xinsheng Zhu

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(10), P. 659 - 659

Published: Sept. 24, 2024

Photoreduction of CO2 into the chemical feedstocks fuels provides a green way to help solve both energy crisis and carbon emission issues. Nevertheless, undesirable charge separation migration, as well rapid reverse recombination results in unsatisfactory photocatalytic activity most conjugated microporous polymers (CMPs). Herein, pair donor–acceptor (D-A) CMPs for photoconversion was developed through position isomerism by altering linkage sites. The show that Py-D27F with 2,7-site exhibits completely structure large molecular dipole moment, thus significantly accelerating transfer. As result, achieves higher yield 320.9 μmol g−1 h−1 CO2-to-CO photoreduction (without addition any photosensitizers precious metals), which is about three-fold greater than Py-D36F (3,6-site linkage). This study valuable idea exploring outstanding CMP photocatalysts efficient processing photocatalysis.

Language: Английский

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