Results 241 to 250 of about 17,281 (293)

Ultrahigh-surface area covalent organic frameworks for methane adsorption.

Science
Developing porous materials with ultrahigh surface areas for gas storage (for example, methane) is attractive but challenging. Here, we report two isostructural three-dimensional covalent organic frameworks (COFs) with a rare self-catenated alb-3,6-Ccc2 ...
Ying Yin, Ya Zhang, Xu Zhou, Bo Gui, Wenqi Wang, Wentao Jiang, Yuebiao Zhang, Junliang Sun, Cheng Wang   +8 more
semanticscholar   +1 more source

Tuning Local Charge Distribution in Multicomponent Covalent Organic Frameworks for Dramatically Enhanced Photocatalytic Uranium Extraction.

Angewandte Chemie, 2023
Optimizing the electronic structure of covalent organic framework (COF) photocatalysts is essential for maximizing photocatalytic activity. Herein, we report an isoreticular family of multivariate COFs containing chromenoquinoline rings in the COF ...
Hui Yang, Mengjie Hao, Yinghui Xie, Xiaolu Liu, Yanfang Liu, Zhongshan Chen, Xiangke Wang, G. Waterhouse, Shengqian Ma   +8 more
semanticscholar   +1 more source

Macrocycle‐Based Covalent Organic Frameworks

Advanced Materials, 2023
AbstractMacrocycles with well‐defined cavities and the ability to undergo supramolecular interactions are classical materials that have played an essential role in materials science. However, one of the most substantial barriers limiting the utilization of macrocycles is their aggregation, which blocks the active regions.
Yufei Yuan, Ki‐Taek Bang, Rui Wang, Yoonseob Kim   +3 more
openaire   +3 more sources

Structural Regulation of Covalent Organic Frameworks for Catalysis.

Accounts of Chemical Research
ConspectusChemical reactions can be promoted at lower temperatures and pressures, thereby reducing the energy input, by introducing suitable catalysts. Despite its significance, the quest for efficient and stable catalysts remains a significant challenge.
Yunyang Qian, Hai‐Long Jiang
semanticscholar   +1 more source

Ionic Covalent Organic Frameworks in Adsorption and Catalysis.

Angewandte Chemie
The ion extraction and electro/photo catalysis are promising methods to address environmental and energy issues. Covalent organic frameworks (COFs) are a class of promising template to construct absorbents and catalysts because of their stable frameworks,
Minghao Liu, Qing Xu, Gaofeng Zeng
semanticscholar   +1 more source

Structural Motifs in Covalent Organic Frameworks for Photocatalysis

Advanced Functional Materials
Covalent organic frameworks (COFs) attract significant attention due to their ordered, crystalline, porous, metal‐free, and predictable structures.
Liyang Qin, Chengdi Ma, Jian Zhang, Tianhua Zhou   +3 more
semanticscholar   +1 more source

Regulating the Topology of Covalent Organic Frameworks for Boosting Overall H2O2 Photogeneration.

Angewandte Chemie
Photocatalytic oxygen reduction reactions and water oxidation reactions are extremely promising green approaches for massive H2O2 production. Nonetheless, constructing effective photocatalysts for H2O2 generation is critical and still challenging.
Jie‐Yu Yue, Jing-Xian Luo, Zi‐Xian Pan, Rui‐Zhi Zhang, Peng Yang, Qing Xu, Bo Tang   +6 more
semanticscholar   +1 more source

Covalent Organic Frameworks for Photocatalytic Reduction of Carbon Dioxide: A Review.

ACS Nano
Covalent organic frameworks (COFs) are crystalline networks with extended backbones cross-linked by covalent bonds. Due to the semiconductive properties and variable metal coordinating sites, along with the rapid development in linkage chemistry, the ...
Jinglun Yang, Zihao Chen, Lei Zhang, Qichun Zhang   +3 more
semanticscholar   +1 more source

Highly Emissive Covalent Organic Frameworks

Journal of the American Chemical Society, 2016
Highly luminescent covalent organic frameworks (COFs) are rarely achieved because of the aggregation-caused quenching (ACQ) of π-π stacked layers. Here, we report a general strategy to design highly emissive COFs by introducing an aggregation-induced emission (AIE) mechanism.
Sasanka Dalapati, Enquan Jin, Matthew Addicoat, Thomas Heine, Donglin Jiang   +4 more
openaire   +2 more sources

Efficient Photocatalytic CO2 Reduction in Ellagic Acid-Based Covalent Organic Frameworks.

Journal of the American Chemical Society
Employing covalent organic frameworks (COFs) for the photocatalytic CO2 reduction reaction (CDRR) to generate high-value chemical fuels and mitigate greenhouse gas emissions represents a sustainable catalytic conversion approach.
Wan Lin, Fuwen Lin, Jing Lin, Zhiwei Xiao, Daqiang Yuan, Yaobing Wang   +5 more
semanticscholar   +1 more source