Thiophene Functionalized Linear Conjugated Polymer toward High-Performance Photocatalytic H2O2 Production DOI
Yuntong Li, Jiayi Wan, Yan Sui

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Metal-free polymeric photocatalysts with tunable building blocks, ample redox-active centers, and exceptional light-harvesting capability have emerged as promising candidates for generating hydrogen peroxide (H2O2) through the oxygen reduction reaction (ORR) water oxidation (WOR). The slow kinetics of WOR process coupled rapid charge recombination nevertheless impedes efficient generation H2O2. Herein, a thiophene functionalized linear conjugated polymer (DEB-Tp-S2) was fabricated effective overall H2O2 photoproduction. DEB-Tp-S2 exhibits high initial photocatalytic yield rate 2762 μmol g–1 h–1 in absence sacrificial additives possesses outstanding cycling stability. Experimental density functional theory (DFT) results exhibit that moieties can reduce strength O–H bond H2O, which promotes 4e– process, thereby suppressing improving proton supply. This work reveals indispensable role chemical structure engineering optimizing their offers fresh insights into design achieving production.

Language: Английский

Construction of Pyrrolo[3,2-B]Pyrrolyl-Linked Covalent Organic Polymers to Promote Continuous Overall H2o2 Production DOI
Yingguo Li,

Jialun He,

Chensheng Wang

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

0
Construction of Inorganic/Organic Hybrid Interfacial Internal Electric Field Modulated Charge Separation of Resorcinol-Formaldehyde Resin for Boosting Photocatalytic H2o2 Production DOI
Yunjie Luo, Xuefei Wang, Ping Wang

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

0
Preparing Ruthenium Complex-Contained DaTp COFs via π–π Interactions for Visible-Light-Driven Photocatalytic Hydrogen Peroxide Production DOI
Xuesong Jiang, Aodi Wang,

Jiani Peng

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 19, 2024

Hydrogen peroxide (H2O2) is a crucial energy carrier with growing significance in sustainable systems. Covalent organic frameworks (COFs) have recently emerged as promising materials for efficient H2O2 photosynthesis, while transition-metal complexes are recognized their efficacy molecular photocatalysts production. This study introduces novel π–π interaction strategy to immobilize ruthenium into COFs, using DaTp COF model system. approach significantly enhances the photocatalytic activity production, achieving an initial rate of 3276 μmol g–1 h–1 without scavengers under visible-light irradiation (λ > 420 nm). Notably, incorporating optimizes oxygen reduction reaction pathways, shifting from less four-electron process more two-electron process. Density functional theory calculations further reveal that not only broaden light absorption spectrum but also increase water affinity, directly contributing generation. These findings offer strategic framework designing and enhancing COFs photosynthesis applications.

Language: Английский

Citations

0
Thiophene Functionalized Linear Conjugated Polymer toward High-Performance Photocatalytic H2O2 Production DOI
Yuntong Li, Jiayi Wan, Yan Sui

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Metal-free polymeric photocatalysts with tunable building blocks, ample redox-active centers, and exceptional light-harvesting capability have emerged as promising candidates for generating hydrogen peroxide (H2O2) through the oxygen reduction reaction (ORR) water oxidation (WOR). The slow kinetics of WOR process coupled rapid charge recombination nevertheless impedes efficient generation H2O2. Herein, a thiophene functionalized linear conjugated polymer (DEB-Tp-S2) was fabricated effective overall H2O2 photoproduction. DEB-Tp-S2 exhibits high initial photocatalytic yield rate 2762 μmol g–1 h–1 in absence sacrificial additives possesses outstanding cycling stability. Experimental density functional theory (DFT) results exhibit that moieties can reduce strength O–H bond H2O, which promotes 4e– process, thereby suppressing improving proton supply. This work reveals indispensable role chemical structure engineering optimizing their offers fresh insights into design achieving production.

Language: Английский

Citations

0