Directional Transport of Photogenerated Electrons to Reduction Sites in Covalent Organic Frameworks by Microenvironment Modulation for CO2 Photoreduction DOI

Junxian Bai,

Mengke Zhang,

Fangyuan Si

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 8, 2024

Abstract As the transfer of photogenerated electrons to CO 2 directly determines its reduction performance, it is important boost local electron density at reaction site. Herein, a new strategy demonstrated evaluate site by modulating microenvironment molecular level based on 3 rationally designed relatively electron‐deficient (ED) and electron‐rich (ER) type COFs. Expectedly, En‐COF‐TAPB‐TDOEB exhibits high due presence an additional electric field, whose polarization direction consistent with that basic unit comparison, in Am‐COF‐TAPB‐TFB Pr‐COF‐TFPB‐TAB mostly distribute benzene triphenylene, respectively, delay exciton dissociation field inverse compared Consequently, shows superior photoreduction efficiency Pr‐COF‐TFPB‐TAB. Further mechanism investigation demonstrates influence polar excited state charge separation pathways π‐system En‐COF‐TAPB‐TDOEB, which convincingly confirms ability directional transport sites photocatalysts correlated their activity reduction.

Language: Английский

Construction and Embedding of Oxygen Vacancies in Organic-Inorganic S-scheme Heterojunctions for Optimizing the Photocatalytic Degradation Performance of PDI-Nb/BiVO4 towards Antibiotics DOI
Nan Li, Yu‐Hua Niu,

Wengang An

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125141 - 125141

Published: Feb. 1, 2025

Language: Английский

Citations

0
Advancements and challenges of industrial‐level acidic CO2 electrolysis DOI Creative Commons

Shuchao Shen,

Kang Yang, Guoliang Xu

et al.

MetalMat, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 1, 2024

Abstract The use of green renewable energy to convert carbon dioxide (CO 2 ) into valuable chemicals and fuels through CO electrolysis technology (also known as electrochemical reduction reaction, eCO RR) is an advantageous technology, which could greatly aid the global carbon‐neutral goal. Although progress has been made in alkaline/neutral media, low conversion efficiency target products, carbonate/bicarbonate salt precipitation, blockage electrode holes caused by are not conducive industrial applications. Acidic media address these issues; however, conditions, there other challenges that need be addressed, such hydrogen evolution, poor tolerance electrocatalysts, electrolysers. This review discusses recent advances industrial‐level acidic electrolysis, including reaction mechanisms, device design, aiming promote its commercialization. In addition, a comprehensive evaluation strategy RR system proposed, perspectives provided based on related discussion.

Language: Английский

Citations

1
Progress in Catalysts for Formic Acid Production by Electrochemical Reduction of Carbon Dioxide DOI
Yuqi Ma, Rui Xu, Xiang Wu

et al.

Topics in Current Chemistry, Journal Year: 2024, Volume and Issue: 383(1)

Published: Dec. 3, 2024

Language: Английский

Citations

1
Directional Transport of Photogenerated Electrons to Reduction Sites in Covalent Organic Frameworks by Microenvironment Modulation for CO2 Photoreduction DOI

Junxian Bai,

Mengke Zhang,

Fangyuan Si

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 8, 2024

Abstract As the transfer of photogenerated electrons to CO 2 directly determines its reduction performance, it is important boost local electron density at reaction site. Herein, a new strategy demonstrated evaluate site by modulating microenvironment molecular level based on 3 rationally designed relatively electron‐deficient (ED) and electron‐rich (ER) type COFs. Expectedly, En‐COF‐TAPB‐TDOEB exhibits high due presence an additional electric field, whose polarization direction consistent with that basic unit comparison, in Am‐COF‐TAPB‐TFB Pr‐COF‐TFPB‐TAB mostly distribute benzene triphenylene, respectively, delay exciton dissociation field inverse compared Consequently, shows superior photoreduction efficiency Pr‐COF‐TFPB‐TAB. Further mechanism investigation demonstrates influence polar excited state charge separation pathways π‐system En‐COF‐TAPB‐TDOEB, which convincingly confirms ability directional transport sites photocatalysts correlated their activity reduction.

Language: Английский

Citations

1