Porphyrin‐Based Covalent Organic Frameworks for CO₂ Photo/Electro‐Reduction

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

---

Shaping the future of solar-driven photocatalysis by reticular framework materials

Journal of Material Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

---

Quantum Well Superlattice Heteronanostructures for Efficient Photocatalytic Hydrogen Evolution

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

In this study, we construct a quantum well effect-based two-dimensional Z-scheme superlattice heteronanostructure photocatalyst constructed from hydrogen-bonded porphyrin organic frameworks (HOFs) and carbon nitride. Porphyrin HOFs extend spectral absorption, while their π-conjugation electron density variations significantly enhance charge separation exhibit favorable alignment with the energy levels of nitride, thereby enabling efficient transfer. Carboxylic acid channels in further promote decomposition water molecules, boosting hydrogen production. Experimental results indicate an improvement carrier efficiency 6.97 to 50.31%, resulting 935-fold increase evolution rate 187.2 mmol/g/h. Such represents highest performance among currently reported porphyrin-based carbon-based photocatalysts. This work highlights potential well-based heterostructure design optimizing photocarrier dynamics, providing promising strategy for advancing photocatalytic evolution.

Language: Английский

---

Photons, Excitons, and Electrons in Covalent Organic Frameworks

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(47), P. 32161 - 32205

Published: Nov. 18, 2024

Covalent organic frameworks (COFs) are created by the condensation of molecular building blocks and nodes to form two-dimensional (2D) or three-dimensional (3D) crystalline frameworks. The diversity with different properties functionalities large number possible framework topologies open a vast space well-defined porous architectures. Besides more classical applications materials such as absorption, separation, catalytic conversions, interest in optoelectronic COFs has recently increased considerably. electronic both their linkage chemistry can be controlled tune photon absorption emission, create excitons charge carriers, use these carriers photocatalysis, luminescence, chemical sensing, photovoltaics. In this Perspective, we will discuss relationship between structural features properties, starting connectivity, layer stacking 2D COFs, control over defects morphology including thin film synthesis, exploring theoretical modeling structural, electronic, dynamic discussing recent intriguing focus on photocatalysis photoelectrochemistry. We conclude some remarks about present challenges future prospects powerful architectural paradigm.

Language: Английский

---

Recent advances and future perspectives of metal-organic frameworks as efficient electrocatalysts for CO2 reduction

Science China Materials, Journal Year: 2024, Volume and Issue: 68(1), P. 21 - 38

Published: Nov. 8, 2024

Abstract The conversion of carbon dioxide (CO 2 ) to the reduced chemical compounds offers substantial environmental benefits through minimizing emission greenhouse gas and fostering sustainable practices. Recently, unique properties metal-organic frameworks (MOFs) make them attractive candidates for electrocatalytic CO reduction reaction RR), providing many opportunities develop efficient, selective, environmentally processes mitigating emissions utilizing as a valuable raw material synthesis fuels chemicals. Here, recent advances in MOFs efficient catalysts RR are summarized. detailed characteristics, mechanisms, practical approaches improving efficiency, selectivity, durability under realistic conditions also clarified. Furthermore, outlooks on prospects MOF-based electrocatalysts provided.

Language: Английский

---

Bionic Luminescent Sensors Based on Covalent Organic Frameworks: Auditory, Gustatory, and Olfactory Information Monitoring for Multimode Perception

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

The synthesis of covalent organic frameworks (COFs) with excellent luminescent properties and their effective application in the field bionic sensing remain a formidable challenge. Herein, series COFs different numbers hydroxyl groups are successfully synthesized, number on benzene-1,3,5-tricarbaldehyde (BTA) linker influences final COFs. COF (HHBTA-OH) prepared hydrazine hydrate (HH) BTA containing one group as ligands exhibits best fluorescent performance. MA@HHBTA-OH is formed by reaction HHBTA-OH meldrum's acid (MA) has its extremely high hydrophilicity, dispersibility, strong red fluorescence, which can imitate human gustatory system to detect bitter substances. was combined agarose (AG) construct MA@HHBTA-OH@AG film for assessing food freshness. In addition, an acoustic MA@HHBTA-OH@MF sensor fabricated integrating melamine foam (MF) through hydrogen bond. functions like eardrum recognizes sound pressure waves mechanical summary, biomimetic sensors based were constructed, monitor auditory, gustatory, olfactory information achieve multimode perception sound, substances,

Language: Английский

---

Regulating Benzothiadiazole-Based Covalent–Organic Frameworks to Boost Hydrogen Peroxide Photosynthesis and Pathogenic Bacterial Elimination

ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 811 - 819

Published: Jan. 31, 2025

Language: Английский

---

Research progress in photocatalytic carbon dioxide reduction performance of covalent organic frameworks

Scientia Sinica Chimica, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

---

N-Position Isomerization to Enhance the Co2 Photoreduction Performance of Bipyridine-Based Covalent Organic Frameworks

Published: Jan. 1, 2025

Language: Английский

---

sp² Carbon‐Conjugated Covalent Organic Frameworks (sp²c‐COFs): Synthesis and Application in Photocatalytic Water Splitting

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 9, 2025

Abstract Preparation of irreversible sp 2 carbon‐conjugated covalent organic frameworks (sp c‐COFs) with specific porosity, easy structural functionalization, high chemical stability, and unique π‐electron conjugation structure (especially the combination π–π stacking interactions system), can remove barrier electron transfer provide a advantage for photocatalytic water splitting. Herein, based on three kinds reactions (Aldol condensation reaction, Knoevenagel Horner‐Wadsworth‐Emmons reaction) guided by precise modulation ligand topology, this review summarizes synthesis c‐COFs their applications in photoelectrocatalytic splitting (hydrogen evolution oxygen reactions). Furthermore, challenges possible research directions are also provided.

Language: Английский

---