Results 81 to 90 of about 41,033 (277)

Covalent Organic Frameworks for Membrane Separation

Advanced Science
Membranes with switchable wettability, solvent resistance, and toughness have emerged as promising materials for separation applications. However, challenges like limited mechanical strength, poor chemical stability, and structural defects during ...
Yuan‐Hang Jin, Meng‐Hao Li, Ying‐Wei Yang   +2 more
doaj   +1 more source

Water-Soluble 3D Covalent Organic Framework that Displays an Enhanced Enrichment Effect of Photosensitizers and Catalysts for the Reduction of Protons to H2. [PDF]

, 2020
Covalent organic frameworks (COFs) are emerging porous polymers that have 2D or 3D long-range ordering. Currently available COFs are typically insoluble or decompose upon dissolution, which remarkably restricts their practical implementations.
Gao, Zhong-Zheng, Li, Xiaopeng, Li, Zhan-Ting, Liu, Chuan-Zhi, Liu, Yi, Tian, Jia, Wang, Hui, Wang, Ze-Kun, Wei, Lei, Yin, Guangqiang, Zhang, Dan-Wei, Zhang, Yue-Biao   +11 more
core  

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

Advanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey, Uwe Hübner, Albane Benardais, Xiaofei Wu, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Henrik Schneidewind, Markus A Schmidt, Virginie Nazabal, Volker Deckert, Jer‐Shing Huang, Wei Wang   +12 more
wiley   +1 more source

Covalently linked organic networks [PDF]

, 2015
In this review, we intend to give an overview of the synthesis of well-defined covalently bound organic network materials such as covalent organic frameworks, conjugated microporous frameworks, and other "ideal polymer networks" and discuss the different
Addicoat, Addicoat, Arab, Assfour, Beaudoin, Ben, Biswal, Bureekaew, Bureekaew, Chang, Chen, Choi, Colson, Colón, Côté, Dawson, Ding, Dogru, El-Kaderi, Farha, Feng, Gomez-Gualdron, Guo, Han, Ishiwata, Jiang, Kaur, Kissel, Klontzas, Kuhn, Liebl, Lindemann, Lukose, Martin, Martin, McKeown, O’Keeffe, Sarkisov, Spitler, Srepusharawoot, Tsotsalas, Tsyurupa, Uribe-Romo, Uribe-Romo, Wan, Xiang, Zhou   +46 more
core   +3 more sources

Chemistry of Covalent Organic Frameworks

Accounts of Chemical Research, 2015
Linking organic molecules by covalent bonds into extended solids typically generates amorphous, disordered materials. The ability to develop strategies for obtaining crystals of such solids is of interest because it opens the way for precise control of the geometry and functionality of the extended structure, and the stereochemical orientation of its ...
Waller, Peter J., Gándara Barragán, Felipe, Yaghi, Omar M.   +2 more
openaire   +3 more sources

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source

Covalent Organic Frameworks as Exceptional Hydrogen Storage Materials [PDF]

, 2008
We report the H_2 uptake properties of six covalent organic frameworks (COFs) from first-principles-based grand canonical Monte-Carlo simulations. The predicted H_2 adsorption isotherm is in excellent agreement with the only available experimental result
Furukawa, Hiroyasu, Goddard, William A., III, Han, Sang Soo, Yaghi, Omar M.   +3 more
core  

Host‐Directed Biomaterials for Combatting Bloodstream Infections: From Macrocyclic Peptides to Immune‐Activating Cell Backpacks

Advanced Functional Materials, EarlyView.
Bloodstream infections (BSI) are one of the leading causes of mortality and morbidity in both civilian and military populations. This paper summarizes recent progress in novel treatment strategies to manage BSI arising from both bacterial and fungal pathogens using molecules, particles, and materials to elicit host‐directed immunity.
Thomas Thomou, Jagadish Krishnappa, Justin B. Schaal, Prasad Tongaonkar, Dat Q. Tran, Wenchao Gu, Yung‐Fu Chang, Michael E. Selsted, Shaoyi Jiang, Samir Mitragotri, Michael Super, Christopher J. Bettinger   +11 more
wiley   +1 more source

Enhancing photocatalytic performance of covalent organic frameworks via ionic polarization

Nature Communications
Covalent organic frameworks have emerged as a thriving family in the realm of photocatalysis recently, yet with concerns about their high exciton dissociation energy and sluggish charge transfer.
Jiahe Zhang, Xiaoning Li, Haijun Hu, Hongwei Huang, Hui Li, Xiaodong Sun, Tianyi Ma   +6 more
doaj   +1 more source

Adsorption Mechanism and Uptake of Methane in Covalent Organic Frameworks: Theory and Experiment [PDF]

, 2010
We determined the methane (CH_4) uptake (at 298 K and 1 to 100 bar pressure) for a variety of covalent organic frameworks (COFs), including both two-dimensional (COF-1, COF-5, COF-6, COF-8, and COF-10) and three-dimensional (COF-102, COF-103, COF-105 ...
Furukawa, Hiroyasu, Goddard, William A. III, Han, Sang Soo, Mendoza-Cortés, José L., Yaghi, Omar M.   +4 more
core   +1 more source