Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158983 - 158983
Published: Dec. 1, 2024
Language: Английский
Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 19, 2025
Abstract Photocatalytic H 2 O synthesis from and is considered to be one of the most promising alternative approaches for manufacturing . Developing highly active selective photocatalysts significant in achieving efficient photosynthesis. Herein, an ethynyl‐linked donor–acceptor covalent organic framework (COF), named EBBT‐COF, prepared condensation reaction between electron‐deficient unit 4,4′,4″‐(1,3,5‐benzenetriyltri‐2,1‐ethynediyl)tris‐benzenamine electron‐rich benzo[1,2‐b:3,4‐b′:5,6‐b″]trithiophene‐2,5,8‐tricarboxaldehyde. Powder X‐ray diffraction N adsorption isotherm unveil crystalline porous hcb network EBBT‐COF with pores size centered at ca 2.3 nm. Spectroscopic characterizations demonstrate excellent visible‐light absorption capacity enhanced photo‐induced charge separation transport efficiency owing its architecture. Density functional theory calculations electrochemical tests indicate high activity selectivity toward 2e − reduction water oxidation triethynylbenzene trithiophene moieties accelerate ‐to‐H O‐to‐H conversion, respectively. These merits enable a photocatalyst generation yield rate 5 686 µmol g −1 h , optimal apparent quantum 15.14%, solar‐to‐chemical conversion 1.17% (λ > 400 nm), representing best performance among COF‐based reported thus far.
Language: Английский
Citations
2
Chemical Society Reviews, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 25, 2024
The design principles, development process, structural analysis, applications, challenges, and future directions of high-connectivity 3D COFs.
Language: Английский
Citations
9
Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 9, 2025
Photo/electro-catalytic CO2 reduction into high-value products are promising strategies for addressing both environmental problems and energy crisis. Duo to their advantageous visible light absorption ability, adjustable optic/electronic properties, definite active center, post-modification capability, excellent stability, porphyrin-based covalent organic frameworks (COFs) have emerged as attractive photo/electro-catalysts towards reduction. In this review, the research progress of COFs photo/electro-catalytic is summarized including design principles, catalytic performance, reaction mechanism. addition, review also presents some challenges prospects application in reduction, laying base fundamental efforts.
Language: Английский
Citations
1
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 5, 2024
Lithium (Li) metal batteries with remarkable energy densities are restrained by short lifetime and low Coulombic efficiency (CE), resulting from the accumulative Li dendrites dead during cycling. Here, we prepared a new three-dimensional (3D) covalent organic framework (COF) dense lithiophilic sites (heteoatom weight contents of 32.32 wt %) as an anodic protective layer batteries. The 3D COF was synthesized using [6+4] synthesis strategy inducing flexible 6-connected cyclotriphosphazene derivative aldehyde 4-connected porphyrin-based tetraphenylamines. Both phosphazene porphyrin rings in served electron-rich sites, enhancing homogeneous
Language: Английский
Citations
8
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 27, 2024
Abstract Photocatalysis leverages solar energy to overcome the thermodynamic barrier, enabling efficient chemical reactions under mild conditions. It can greatly reduce reliance on traditional sources and has attracted significant research interest. Reticular materials, including metal‐organic frameworks (MOFs) covalent organic (COFs), represent a class of crystalline materials constructed from molecular building blocks linked by coordination bonds, respectively. function as heterogeneous catalysts, combining well‐defined structures high tailorability akin homogeneous catalysts. In this review, regulation light absorption, charge separation, surface in photocatalytic process through precise molecular‐level design based features reticular is elaborated. Notably, for MOFsmicroenvironment modulation around catalytic sites affects performance delved, with emphasis their unique dynamic flexible microenvironments. For COFs, inherent excitonic effects due fully nature discussed highlight strategies regulate charge‐ and/or energy‐transfer‐mediated photocatalysis. Finally, current challenges future directions field, aiming provide comprehensive understanding how be optimized enhanced photocatalysis discussed.
Language: Английский
Citations
8
Chemical Research in Chinese Universities, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 7, 2025
Language: Английский
Citations
0
Published: Jan. 1, 2025
Language: Английский
Citations
0
Angewandte Chemie, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 9, 2025
Abstract Photo/electro‐catalytic CO 2 reduction into high‐value products are promising strategies for addressing both environmental problems and energy crisis. Duo to their advantageous visible light absorption ability, adjustable optic/electronic properties, definite active center, post‐modification capability, excellent stability, porphyrin‐based covalent organic frameworks (COFs) have emerged as attractive photo/electro‐catalysts towards reduction. In this review, the research progress of COFs photo/electro‐catalytic is summarized including design principles, catalytic performance, reaction mechanism. addition, review also presents some challenges prospects application in reduction, laying base fundamental efforts.
Language: Английский
Citations
0
ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 19, 2025
Language: Английский
Citations
0
Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125262 - 125262
Published: March 1, 2025
Language: Английский
Citations
0