Atomistic Simulation of Micropore Structure, Surface Area, and Gas Sorption Properties for Amorphous Microporous Polymer Networks

2008 ◽  
Vol 112 (51) ◽  
pp. 20549-20559 ◽  
Author(s):  
Abbie Trewin ◽  
David J. Willock ◽  
Andrew I. Cooper
Adsorption ◽  
2020 ◽  
Vol 26 (7) ◽  
pp. 1083-1091
Author(s):  
Mi Tian ◽  
Sébastien Rochat ◽  
Hamish Fawcett ◽  
Andrew D. Burrows ◽  
Christopher R. Bowen ◽  
...  

Abstract A detailed investigation has been carried out of the pre-polymerisation modification of the polymer of intrinsic microporosity PIM-1 by the addition of two methyl (Me) groups to its spirobisindane unit to create a new chemically modified PIM-1 analogue, termed MePIM. Our work explores the effects of this modification on the porosity of PIM-1 and hence on its gas sorption properties. MePIM was successfully synthesised using either low (338 K) or high (423 K) temperature syntheses. It was observed that introduction of methyl groups to the spirobisindane part of PIM-1 generates additional microporous spaces, which significantly increases both surface area and hydrogen storage capacity. The BET surface area (N2 at 77 K) was increased by ~ 12.5%, resulting in a ~ 25% increase of hydrogen adsorption after modification. MePIM also maintains the advantages of good processability and thermal stability. This work provides new insights on a facile polymer modification that enables enhanced gas sorption properties.


2019 ◽  
Vol 10 (33) ◽  
pp. 4611-4620 ◽  
Author(s):  
Ningning Song ◽  
Tianjiao Wang ◽  
Hongyan Yao ◽  
Tengning Ma ◽  
Kaixiang Shi ◽  
...  

Microporous polyimide networks with high surface area and excellent CO2 adsorption performance have been constructed based on cross-linkable linear polyimides through crosslinking reaction.


2011 ◽  
Vol 2 (10) ◽  
pp. 2186 ◽  
Author(s):  
Eduard Preis ◽  
Christian Widling ◽  
Ullrich Scherf ◽  
Satish Patil ◽  
Gunther Brunklaus ◽  
...  

CrystEngComm ◽  
2015 ◽  
Vol 17 (3) ◽  
pp. 532-539 ◽  
Author(s):  
I. Spanopoulos ◽  
I. Bratsos ◽  
Ch. Tampaxis ◽  
A. Kourtellaris ◽  
A. Tasiopoulos ◽  
...  

The gas-sorption properties of a high surface area α-magnesium formate with an expanded unit cell are reported. The material is stable in NH3 and shows very high CH4/N2 (5.2) selectivity.


Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 1962
Author(s):  
Mahboubeh Nabavinia ◽  
Baishali Kanjilal ◽  
Noahiro Fujinuma ◽  
Amos Mugweru ◽  
Iman Noshadi

To address the issue of global warming and climate change issues, recent research efforts have highlighted opportunities for capturing and electrochemically converting carbon dioxide (CO2). Despite metal doped polymers receiving widespread attention in this respect, the structures hitherto reported lack in ease of synthesis with scale up feasibility. In this study, a series of mesoporous metal-doped polymers (MRFs) with tunable metal functionality and hierarchical porosity were successfully synthesized using a one-step copolymerization of resorcinol and formaldehyde with Polyethyleneimine (PEI) under solvothermal conditions. The effect of PEI and metal doping concentrations were observed on physical properties and adsorption results. The results confirmed the role of PEI on the mesoporosity of the polymer networks and high surface area in addition to enhanced CO2 capture capacity. The resulting Cobalt doped material shows excellent thermal stability and promising CO2 capture performance, with equilibrium adsorption of 2.3 mmol CO2/g at 0 °C and 1 bar for at a surface area 675.62 m2/g. This mesoporous polymer, with its ease of synthesis is a promising candidate for promising for CO2 capture and possible subsequent electrochemical conversion.


2016 ◽  
Vol 217 (17) ◽  
pp. 1886-1898 ◽  
Author(s):  
Tomáš Faukner ◽  
Arnošt Zukal ◽  
Jiří Brus ◽  
Jiří Zedník ◽  
Jan Sedláček

2015 ◽  
Vol 2 (2) ◽  
pp. 136-140 ◽  
Author(s):  
Xiao-Lin Qi ◽  
Jia-Wen Ye ◽  
Rui-Biao Lin ◽  
Pei-Qin Liao ◽  
Si-Yang Liu ◽  
...  

Two genuine supramolecular isomers with a unique type of structural difference and completely different porous properties have been synthesized and characterized.


2003 ◽  
Vol 90 (8) ◽  
pp. 2187-2193 ◽  
Author(s):  
Si-Xue Cheng ◽  
Tai-Shung Chung ◽  
Rong Wang ◽  
Rohit H. Vora

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