An azo-linked porous triptycene network as an absorbent for CO2 and iodine uptake

2016 ◽  
Vol 7 (3) ◽  
pp. 643-647 ◽  
Author(s):  
Qin-Qin Dang ◽  
Xiao-Min Wang ◽  
Yu-Fen Zhan ◽  
Xian-Ming Zhang

An azo-linked porous organic framework (Azo-Trip) in which triptycene is incorporated as linkage, has been constructed via a facile Zn-induced reductive homocoulping reaction. The Azo-Trip exhibits selective carbon dioxide uptake and excellent iodine uptake in vapour and liquid phase.

2013 ◽  
Vol 1 (22) ◽  
pp. 6535 ◽  
Author(s):  
Bo Liu ◽  
Yuanpu Li ◽  
Lei Hou ◽  
Guoping Yang ◽  
Yao-Yu Wang ◽  
...  

2014 ◽  
Vol 2 (33) ◽  
pp. 13245-13249 ◽  
Author(s):  
Siyoung Sung ◽  
Myunghyun Paik Suh

A porous organic framework (PAF-5) impregnated with a polyethylenimine (PEI) displays excellent properties for post-combustion CO2 capture.


2021 ◽  
Vol 2 (6) ◽  
pp. 2112-2119
Author(s):  
Patrick W. Doheny ◽  
Ravichandar Babarao ◽  
Cameron J. Kepert ◽  
Deanna M. D’Alessandro

Chemical reduction of an electroactive metal–organic framework based on napthalenediimide modulates carbon dioxide uptake and heat of adsorption.


CrystEngComm ◽  
2014 ◽  
Vol 16 (25) ◽  
pp. 5520 ◽  
Author(s):  
Liting Du ◽  
Shilong Yang ◽  
Li Xu ◽  
Huihua Min ◽  
Baishu Zheng

1991 ◽  
Vol 24 (7) ◽  
pp. 277-284 ◽  
Author(s):  
E. Gomólka ◽  
B. Gomólka

Whenever possible, neutralization of alkaline wastewater should involve low-cost acid. It is conventional to make use of carbonic acid produced via the reaction of carbon dioxide (contained in flue gases) with water according to the following equation: Carbon dioxide content in the flue gas stream varies from 10% to 15%. The flue gas stream may either be passed to the wastewater contained in the recarbonizers, or. enter the scrubbers (which are continually sprayed with wastewater) from the bottom in oountercurrent. The reactors, in which recarbonation occurs, have the ability to expand the contact surface between gaseous and liquid phase. This can be achieved by gas phase dispersion in the liquid phase (bubbling), by liquid phase dispersion in the gas phase (spraying), or by bubbling and spraying, and mixing. These concurrent operations are carried out during motion of the disk aerator (which is a patent claim). The authors describe the functioning of the disk aerator, the composition of the wastewater produced during wet gasification of carbide, the chemistry of recarbonation and decarbonation, and the concept of applying the disk aerator so as to make the wastewater fit for reuse (after suitable neutralization) as feeding water in acetylene generators.


2019 ◽  
Vol 25 (38) ◽  
pp. 9045-9051 ◽  
Author(s):  
Lingchang Jiang ◽  
Pengyuan Wang ◽  
Meiping Li ◽  
Panpan Zhang ◽  
Jialu Li ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3525
Author(s):  
Leslie Trigoura ◽  
Yalan Xing ◽  
Bhanu P. S. Chauhan

In this review, we present an assessment of recent advances in alkyne functionalization reactions, classified according to different classes of recyclable catalysts. In this work, we have incorporated and reviewed the activity and selectivity of recyclable catalytic systems such as polysiloxane-encapsulated novel metal nanoparticle-based catalysts, silica–copper-supported nanocatalysts, graphitic carbon-supported nanocatalysts, metal organic framework (MOF) catalysts, porous organic framework (POP) catalysts, bio-material-supported catalysts, and metal/solvent free recyclable catalysts. In addition, several alkyne functionalization reactions have been elucidated to demonstrate the success and efficiency of recyclable catalysts. In addition, this review also provides the fundamental knowledge required for utilization of green catalysts, which can combine the advantageous features of both homogeneous (catalyst modulation) and heterogeneous (catalyst recycling) catalysis.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Omid T. Qazvini ◽  
Ravichandar Babarao ◽  
Shane G. Telfer

AbstractEfficient and sustainable methods for carbon dioxide capture are highly sought after. Mature technologies involve chemical reactions that absorb CO2, but they have many drawbacks. Energy-efficient alternatives may be realised by porous physisorbents with void spaces that are complementary in size and electrostatic potential to molecular CO2. Here, we present a robust, recyclable and inexpensive adsorbent termed MUF-16. This metal-organic framework captures CO2 with a high affinity in its one-dimensional channels, as determined by adsorption isotherms, X-ray crystallography and density-functional theory calculations. Its low affinity for other competing gases delivers high selectivity for the adsorption of CO2 over methane, acetylene, ethylene, ethane, propylene and propane. For equimolar mixtures of CO2/CH4 and CO2/C2H2, the selectivity is 6690 and 510, respectively. Breakthrough gas separations under dynamic conditions benefit from short time lags in the elution of the weakly-adsorbed component to deliver high-purity hydrocarbon products, including pure methane and acetylene.


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