A 2D azine-linked covalent organic framework for gas storage applications

2014 ◽  
Vol 50 (89) ◽  
pp. 13825-13828 ◽  
Author(s):  
Zhongping Li ◽  
Xiao Feng ◽  
Yongcun Zou ◽  
Yuwei Zhang ◽  
Hong Xia ◽  
...  
Keyword(s):  
High Selectivity ◽  
Gas Storage ◽  
Covalent Organic Framework ◽  
Organic Framework

A highly crystalline and porous azine-linked covalent organic framework exhibits excellent CO2 uptake (17.7 wt%, 273 K and 1 bar) and high selectivity towards CO2 over N2 and CH4.

Dual luminescent covalent organic frameworks for nitro-explosive detection

2019 ◽  
Vol 7 (47) ◽  
pp. 27148-27155 ◽  
Author(s):  
Muhammad Faheem ◽  
Saba Aziz ◽  
Xiaofei Jing ◽  
Tingting Ma ◽  
Junyi Du ◽  
...  
Keyword(s):  
High Selectivity ◽  
High Sensitivity ◽  
Explosive Detection ◽  
Covalent Organic Frameworks ◽  
Covalent Organic Framework ◽  
Nitro Explosives ◽  
Organic Framework

The assembly of two electron-rich fluorescent monomers produces a new dual luminescent covalent organic framework (DL-COF), which exhibits nitro explosives detecting ability with high sensitivity (Ksv ∼ 106 M−1, Kq ∼ 1015 M−1 s−1) and high selectivity (at ppb level).

A 2D Mesoporous Imine-Linked Covalent Organic Framework for High Pressure Gas Storage Applications

2013 ◽  
Vol 19 (10) ◽  
pp. 3324-3328 ◽  
Author(s):  
Mohammad Gulam Rabbani ◽  
Ali Kemal Sekizkardes ◽  
Zafer Kahveci ◽  
Thomas E. Reich ◽  
Ransheng Ding ◽  
...  
Keyword(s):  
High Pressure ◽  
Gas Storage ◽  
Covalent Organic Framework ◽  
Organic Framework

Two dimensional covalent organic framework materials for chemical fixation of carbon dioxide: excellent repeatability and high selectivity

2017 ◽  
Vol 46 (33) ◽  
pp. 10780-10785 ◽  
Author(s):  
Kaikai Xu ◽  
Yihu Dai ◽  
Benfei Ye ◽  
Hongming Wang
Keyword(s):  
Carbon Dioxide ◽  
High Selectivity ◽  
Two Dimensional ◽  
Chemical Fixation ◽  
Cyclic Carbonates ◽  
Covalent Organic Framework ◽  
Framework Materials ◽  
Fixation Of Carbon Dioxide ◽  
Organic Framework

Two dimensional (2D) metalloporphyrin-based covalent organic framework (COF) composites were synthesized and employed to catalyze the coupling of CO2 and epoxides to form cyclic carbonates.

An Azine-Linked Covalent Organic Framework: Synthesis, Characterization and Efficient Gas Storage

2015 ◽  
Vol 21 (34) ◽  
pp. 12079-12084 ◽  
Author(s):  
Zhongping Li ◽  
Yongfeng Zhi ◽  
Xiao Feng ◽  
Xuesong Ding ◽  
Yongcun Zou ◽  
...  
Keyword(s):  
Gas Storage ◽  
Covalent Organic Framework ◽  
Organic Framework

Tuning the pore structures and photocatalytic properties of a 2D covalent organic framework with multi-branched photoactive moieties

Nanoscale ◽  
2020 ◽  
Vol 12 (30) ◽  
pp. 16136-16142
Author(s):  
Xuan Wang ◽  
Ming-Jie Dong ◽  
Chuan-De Wu
Keyword(s):  
Photocatalytic Properties ◽  
Effective Strategy ◽  
Covalent Organic Framework ◽  
Highly Efficient ◽  
Pore Structures ◽  
Local Connection ◽  
Organic Framework

An effective strategy to incorporate accessible metalloporphyrin photoactive sites into 2D COFs by establishing a 3D local connection for highly efficient photocatalysis was developed.

A Three-Dimensional Tetraphenylethylene-Based Fluorescence Covalent Organic Framework for Molecular Recognition

2020 ◽  
Author(s):  
Junxia Ren ◽  
Yaozu Liu ◽  
Xin Zhu ◽  
Yangyang Pan ◽  
Yujie Wang ◽  
...  
Keyword(s):  
Molecular Recognition ◽  
Fluorescence Probe ◽  
Three Dimensional ◽  
Hazardous Substances ◽  
Covalent Organic Framework ◽  
Highly Sensitive ◽  
Volatile Organic ◽  
Polycyclic Aromatic ◽  
Better Than ◽  
Organic Framework

<p><a></a><a></a><a></a><a></a><a></a><a></a><a></a><a>The development of highly-sensitive recognition of </a><a></a><a></a><a></a><a></a><a>hazardous </a>chemicals, such as volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs), is of significant importance because of their widespread social concerns related to environment and human health. Here, we report a three-dimensional (3D) covalent organic framework (COF, termed JUC-555) bearing tetraphenylethylene (TPE) side chains as an aggregation-induced emission (AIE) fluorescence probe for sensitive molecular recognition.<a></a><a> </a>Due to the rotational restriction of TPE rotors in highly interpenetrated framework after inclusion of dimethylformamide (DMF), JUC-555 shows impressive AIE-based strong fluorescence. Meanwhile, owing to the large pore size (11.4 Å) and suitable intermolecular distance of aligned TPE (7.2 Å) in JUC-555, the obtained material demonstrates an excellent performance in the molecular recognition of hazardous chemicals, e.g., nitroaromatic explosives, PAHs, and even thiophene compounds, via a fluorescent quenching mechanism. The quenching constant (<i>K</i><sub>SV</sub>) is two orders of magnitude better than those of other fluorescence-based porous materials reported to date. This research thus opens 3D functionalized COFs as a promising identification tool for environmentally hazardous substances.</p>

scholarly journals 18.1% single palladium atom catalysts on mesoporous covalent organic framework for gas phase hydrogenation of ethylene

2021 ◽  
Vol 2 (7) ◽  
pp. 100495
Author(s):  
Chun-Te Kuo ◽  
Yubing Lu ◽  
Pezhman Arab ◽  
K. Shamara Weeraratne ◽  
Hani El-Kaderi ◽  
...  
Keyword(s):  
Gas Phase ◽  
Palladium Atom ◽  
Covalent Organic Framework ◽  
Hydrogenation Of Ethylene ◽  
Organic Framework
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