Overall solar H2O2 generation in water and real seawater by covalent organic frameworks with kgd topology DOI
Jieyu Yue,

Li-Ping Song,

Zi‐Xian Pan

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158983 - 158983

Published: Dec. 1, 2024

Language: Английский

Vinyl-functionalized covalent organic framework via tuning π-conjugation effectively promotes photocatalytic hydrogen evolution DOI
Yue Li,

Jilu Yang,

Wenbo Si

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 356, P. 129809 - 129809

Published: Sept. 25, 2024

Language: Английский

Citations

0
Nano‐Metal‐Organic Frameworks and Nano‐Covalent‐Organic Frameworks: Controllable Synthesis and Applications DOI Open Access

Yaxun Hu,

Songtao Zhang, Kun Xu

et al.

Chemistry - An Asian Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 10, 2024

Abstract Nanoscale framework materials have attracted extensive attention due to their diverse morphology and good properties, synthesis methods of different size structures been reported. Therefore, the relationship between sizes performance has become a research hotspot. This paper reviews controllable strategies nano‐metal‐organic frameworks (nano‐MOFs) nano‐covalent‐organic (nano‐COFs). Firstly, synthetic evolution nano‐frame is summarized. Due special surface area, regular pores adjustable structural functions, much attention. Then preparation nanostructures with dimensions are introduced. These provide basis for design novel energy storage catalytic materials. In addition, latest advances in field catalysis reviewed, emphasis on application nano‐MOFs/COFs zinc‐, lithium‐, sodium‐based batteries, as well supercapacitors.

Language: Английский

Citations

0
Three‐dimensional Covalent Organic Framework with Dense Lithiophilic Sites as Protective Layer to Enable High‐Performance Lithium Metal Battery DOI Open Access
Shuang Zheng, Yubin Fu,

Shuai Bi

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 5, 2024

Abstract 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 + flux via direction towards highly smooth compact deposition. Li/Por‐PN‐COF‐Cu cells achieved record average CE 99.1 % for 320 cycles Meanwhile, abundant can promote fast transport transference number 0.87, enabling LiFePO 4 full cell stable stripping/plating processes even at harsh rate 5 C. Theoretical calculations revealed that strong interaction force between facilitated dissolution electrolyte, migration barrier 1.08 eV indicated favorable ions π‐electron system.

Language: Английский

Citations

0
Precise Atomic Control of Adjacent Nitrogen Microenvironment in Covalent Organic Frameworks for Boosting Hydrogen Peroxide Photosynthesis DOI Creative Commons
Wei Zhou,

Wenjiao Wang,

Zhen Zhan

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Abstract The microenvironmental changes on the skeleton of covalent organic frameworks (COFs) have an ineluctable impact photocatalytic performance. However, precise control at atomic level adjacent units and synergistic effect between imine bonds process are frequently overlooked. Herein, we develop various COFs with different nitrogen contents for (-C = N-) applied them to H2O2 photosynthesis. Distinct from traditional reactions, adsorption activation oxygen molecules may predominate over photogenerated charge migration in generation process. Specifically, -C N- atoms can more conducive lower reaction energy barrier, thereby facilitating reduction (ORR, O2 → 1O2 ●O2− H2O2). Notably, under AM 1.5G illumination, efficiency photosynthesis COF-T33 be up 88 mmol g− 1 h− 1, which is highest value reported so far similar conditions. Furthermore, only after 5 hours light irradiation, obtained content reach 0.44 wt%, meeting requirements industrial applications. This work deeply uncovers internal mechanism regulation microenvironment

Language: Английский

Citations

0
Overall solar H2O2 generation in water and real seawater by covalent organic frameworks with kgd topology DOI
Jieyu Yue,

Li-Ping Song,

Zi‐Xian Pan

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158983 - 158983

Published: Dec. 1, 2024

Language: Английский

Citations

0