Molecular Expansion for Constructing Porous Organic Polymers with High Surface Areas and Well‐Defined Nanopores

2020 ◽  
Vol 59 (44) ◽  
pp. 19487-19493
Author(s):  
Yuchuan Liu ◽  
Shun Wang ◽  
Xianyu Meng ◽  
Yu Ye ◽  
Xiaowei Song ◽  
...  
2020 ◽  
Vol 132 (44) ◽  
pp. 19655-19661
Author(s):  
Yuchuan Liu ◽  
Shun Wang ◽  
Xianyu Meng ◽  
Yu Ye ◽  
Xiaowei Song ◽  
...  

2021 ◽  
Author(s):  
Basiram Brahma Narzary ◽  
Benjamin C. Baker ◽  
Neha Yadav ◽  
Valerio D'Elia ◽  
Charl FJ Faul

Porous Polyimides (pPIs) represent a fascinating class of porous organic polymers (POPs). Not only do they exhibit high thermal and chemical stabilities, high surface areas, and energy storage capabilities, but...


RSC Advances ◽  
2015 ◽  
Vol 5 (119) ◽  
pp. 98508-98513 ◽  
Author(s):  
Xiaowei Jiang ◽  
Yunfei Liu ◽  
Jun Liu ◽  
Yali Luo ◽  
Yinong Lyu

Azo and porphyrin bifunctionalized porous polymer networks (azo-PPors) with BET surface areas up to 750 m2 g−1 were synthesized via a catalyst-free direct coupling of tetra(4-nitrophenyl)porphyrin and aryl amine monomers.


2018 ◽  
Vol 9 (36) ◽  
pp. 4585-4595 ◽  
Author(s):  
Jordy Guadalupe ◽  
Ana M. Ray ◽  
Eva M. Maya ◽  
Berta Gómez-Lor ◽  
Marta Iglesias

New, robust, insoluble porous organic polymers based on the semiconducting platform of hexamethyltruxene with high Brunauer–Emmett–Teller specific surface areas and interesting catalytic activity are presented.


2021 ◽  
Author(s):  
Mohamed Gamal Mohamed ◽  
Ahmed F. M. EL-Mahdy ◽  
Mohammed G. Kotp ◽  
Shiao-Wei Kuo

Porous organic polymers (POPs) are organic macromolecules that are considered emerging materials because of their high specific surface areas, tunable porosities, low densities, high chemical and thermal stabilities, variable compositions,...


Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2426 ◽  
Author(s):  
Mohamed Gamal Mohamed ◽  
Ahmed. F. M. EL-Mahdy ◽  
Tso-Shiuan Meng ◽  
Maha Mohamed Samy ◽  
Shiao-Wei Kuo

We successfully prepared two different classes of hypercrosslinked porous organic polymers (HPPs)—the tetraphenylethene (TPE) and (4-(5,6-Diphenyl-1H-Benzimidazol-2-yl)-triphenylamine (DPT) HPPs—through the Friedel−Crafts polymerization of tetraphenylethene and 4-(5,6-diphenyl-1H-benzimidazol-2-yl)-triphenylamine, respectively, with 1,4-bis(chloromethyl)benzene (Ph-2Cl) in the presence of anhydrous FeCl3 as a catalyst. Our porous materials exhibited high BET surface areas (up to 1000 m2 g−1) and good thermal stabilities. According to electrochemical and dyes adsorption applications, the as-prepared DPT-HPP exhibited a high specific capacitance of 110 F g−1 at a current density of 0.5 A g−1, with an excellent cycling stability of over 2000 times at 10 A g−1. In addition, DPT-HPP showed a high adsorption capacity up to 256.40 mg g−1 for the removal of RhB dye from water.


2012 ◽  
Vol 25 (1) ◽  
pp. 12-16 ◽  
Author(s):  
Brad G. Hauser ◽  
Omar K. Farha ◽  
Jason Exley ◽  
Joseph T. Hupp

2019 ◽  
Vol 72 (11) ◽  
pp. 916
Author(s):  
Marcello B. Solomon ◽  
Peter D. Southon ◽  
Aditya Rawal ◽  
James M. Hook ◽  
Katrina A. Jolliffe ◽  
...  

Porous organic polymers (POPs) represent interesting candidate materials for carbon dioxide (CO2) adsorption applications owing to the permanently porous nature of the structures and the ability to vary metalloligand centres that can be incorporated as a potential means of property tuning. This work reports the synthesis and characterisation of four transition metal complexes (using M=Mn, Ni, Fe, and Pd) of the bis-bromo salen ligand, and the incorporation of these complexes into POPs with tris-(p-ethynyl)-triphenylamine to yield metallated polymers (POPMn, POPNi, POPFe, and POPPd). The POPs were shown to possess Brunauer–Emmett–Teller (BET) surface areas of up to 650m2g−1. Overall, this work provides further insight into the potential of permanently porous polymeric materials in post-combustion capture applications.


Crystals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 762
Author(s):  
Hakan Bildirir

Porous organic polymers provide high accessible surface areas, which make them attractive for gas storage, separation, and catalysis. In addition to those classical usage areas, such compounds are particularly interesting for electronic applications since their high dimensional, electron-rich backbone provides advanced electronic and photophysical properties. However, their non-soluble nature is a challenge for their processability, especially in the case of film formation, hence their limited utilization in organic electronic devices so far. Nevertheless, there are several techniques presented in the literature to overcome that issue, most of which were on the crystalline porous organic polymers, namely covalent organic frameworks (COFs). In this perspective, the developments on COF film formation and prospects for the improvements are discussed with suggestions to further their performances in organic electronics.


Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1385
Author(s):  
Ahmed F. M. EL-Mahdy ◽  
Johann Lüder ◽  
Mohammed G. Kotp ◽  
Shiao-Wei Kuo

Porous organic polymers have been received considerable attention due to their heteroatom-containing structures and high surface areas, which can offer high electrochemical performance in energy applications. The majority of reported Tröger’s base-functionalized porous organic polymers have been applied as effective candidates for sensing and gas separation/adsorption, while their use as electrode materials in supercapacitors is rare. Here, a novel covalent microporous organic polymer containing carbazole and Tröger’s base CzT-CMOP has been successfully synthesized through the one-pot polycondensation of 9-(4-aminophenyl)-carbazole-3,6-diamine (Cz-3NH2) with dimethoxymethane. The polycondensation reaction’s regioselectivity was studied using spectroscopic analyses and electronic structure calculations that confirmed the polycondensation occurred through the second and seventh positions of the carbazole unit rather than the fourth and fifth positions confirmed by first-principles calculations. Our CzT-CMOP exhibited high thermal stability of approximately 463.5 °C and a relatively high Brunauer–Emmett–Teller surface area of 615 m2 g−1 with a nonlocal density functional theory’s pore size and volume of 0.48 cm3 g−1 and 1.66 nm, respectively. In addition, the synthesized CzT-CMOP displayed redox activity due to the existence of a redox-active carbazole in the polymer skeleton. CzT-CMOP revealed high electrochemical performance when used as active-electrode material in a three-electrode supercapacitor with an aqueous electrolyte of 6 M KOH, and it showed specific capacitance of 240 F g−1 at a current density of 0.5 A g−1 with excellent stability after 2000 cycles of 97% capacitance retention. Accordingly, such porous organic polymer appears to have a variety of uses in energy-related applications.


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