Rational Design and Synthesis of Porous Polymer Networks: Toward High Surface Area

2014 ◽  
Vol 26 (15) ◽  
pp. 4589-4597 ◽  
Author(s):  
Weigang Lu ◽  
Zhangwen Wei ◽  
Daqiang Yuan ◽  
Jian Tian ◽  
Stephen Fordham ◽  
...  
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.


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.


Science ◽  
2015 ◽  
Vol 349 (6243) ◽  
pp. 54-58 ◽  
Author(s):  
Kwan Wee Tan ◽  
Byungki Jung ◽  
Jörg G. Werner ◽  
Elizabeth R. Rhoades ◽  
Michael O. Thompson ◽  
...  

Development of rapid processes combining hierarchical self-assembly with mesoscopic shape control has remained a challenge. This is particularly true for high-surface-area porous materials essential for applications including separation and detection, catalysis, and energy conversion and storage. We introduce a simple and rapid laser writing method compatible with semiconductor processing technology to control three-dimensionally continuous hierarchically porous polymer network structures and shapes. Combining self-assembly of mixtures of block copolymers and resols with spatially localized transient laser heating enables pore size and pore size distribution control in all-organic and highly conducting inorganic carbon films with variable thickness. The method provides all-laser-controlled pathways to complex high-surface-area structures, including fabrication of microfluidic devices with high-surface-area channels and complex porous crystalline semiconductor nanostructures.


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

2018 ◽  
Vol 6 (44) ◽  
pp. 21901-21905 ◽  
Author(s):  
S. Grätz ◽  
M. Oltermann ◽  
E. Troschke ◽  
S. Paasch ◽  
S. Krause ◽  
...  

An oxidative polymerization reaction was brought into the solvent-free environment of a ball mill, yielding a porous polymer with a defined structure and high surface area.


Processes ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1488
Author(s):  
Safaa H. Mohamed ◽  
Ayad S. Hameed ◽  
Emad Yousif ◽  
Mohammad Hayal Alotaibi ◽  
Dina S. Ahmed ◽  
...  

The design and synthesis of new multifunctional organic porous polymers has attracted significant attention over the years due to their favorable properties, which make them suitable for carbon dioxide storage. In this study, 2-, 3-, and 4-hydroxybenzaldehyde reacted with phenyltrichlorosilane in the presence of a base, affording the corresponding organosilicons 1–3, which further reacted with benzidine in the presence of glacial acetic acid, yielding the organic polymers 4–6. The synthesized polymers exhibited microporous structures with a surface area of 8.174–18.012 m2 g−1, while their pore volume and total average pore diameter ranged from 0.015–0.035 cm3 g−1 and 1.947–1.952 nm, respectively. In addition, among the synthesized organic polymers, the one with the meta-arrangement structure 5 showed the highest carbon dioxide adsorption capacity at 323 K and 40 bar due to its relatively high surface area and pore volume.


2014 ◽  
Vol 2 (21) ◽  
pp. 8054-8059 ◽  
Author(s):  
Shuwen Yao ◽  
Xiao Yang ◽  
Miao Yu ◽  
Yinghua Zhang ◽  
Jia-Xing Jiang

A series of hypercrosslinked microporous organic copolymer networks was synthesized via Friedel–Crafts alkylation of tetraphenylethylene (TPE) and/or 1,1,2,2-tetraphenylethane-1,2-diol (TPD) promoted by anhydrous FeCl3.


Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 285
Author(s):  
Gopalan Saianand ◽  
Anantha-Iyengar Gopalan ◽  
Kwang-Pill Lee

In recent years, there has been a great demand for the rational design and development of novel catalytic materials at the nanoscale (1–100 nm), with a view to more accurately and efficiently control reaction pathways due to their high surface area and intrinsic properties [...]


2014 ◽  
Vol 918 ◽  
pp. 17-20
Author(s):  
Feng Jiao Chen ◽  
Zhao Sheng Bu ◽  
Guo Wei Zhou

Mesoporous TiO2with high surface area (SBET) and different pore size was successfully fabricated via hydrothermal method using cetyltrimethylammonium bromide and PEO-PPO-PEO as the structure-directing agents, and tetrabutyl titanate (TBT) as titanium source.SBETand pore size of the materials were adjusted by using different amount of TBT.SBETwas increased as TBT changing from 0.5 g to 1.0 g, and then dropped as 2.0 g TBT added. Among as-prepared samples (PC), PC-1.0 showed the highestSBETof 92.72 m2g1. With the increase amount of TBT, pore size increased from 10.36 nm to 12.72 nm. The phtocatalysis study showed that PC-1.0 had the highest percent degradation of 99.6 %. We believed that the design and synthesis of mesoporous TiO2with changing mesopores andSBETare important for both fundamental and technological viewpoints.


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