Heptazine-Based Porous Framework for Selective CO<sub>2</sub> Sorption and Organocatalytic Performances

Dang, Qin-Qin; Zhan, Yu-Fen; Wang, Xiaomin; Zhang, Xianming

doi:10.1021/acsami.5b09441

Cited by 51 publications

(39 citation statements)

References 47 publications

(81 reference statements)

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“…Nitrogen, oxygen, sulphur and phosphorus atoms are always incorporated into POPs to increase selectivity and capture capacity of CO 2 . 33,58,[60][61][62][63][64][65][66][67][68][69][70] This part will be detailed discussed in the following. By replacing the phenyl group with different functional pyridyl or thiophenyl groups is the most commonly used method to incorporating heteroatomic into skeleton of POPs.…”

Section: Heteroatomic Skeletonmentioning

confidence: 99%

Carbon dioxide capture in amorphous porous organic polymers

2017

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Section: Heteroatomic Skeletonmentioning

confidence: 99%

Carbon dioxide capture in amorphous porous organic polymers

2017

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“…Potential alternative technology to overcome this problem is to use of nitrogen‐rich adsorbent/membrane materials, which should have high CO 2 /N 2 selectivity. Since CO 2 has higher quadruple moment over N 2 the selective adsorption of CO 2 over N 2 can be achieved through a suitable adsorbent‐adsorbate interaction . Thus, high CO 2 /N 2 selectivity is one of the most crucial characteristic features of the porous adsorbents that can determine their practical utility in separating CO 2 from flue gas mixtures.…”

Section: Synthesis Of Different Organic Frameworkmentioning

confidence: 99%

Porous Organic Polymers for CO₂ Storage and Conversion Reactions

2018

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To overcome the challenges of global warming and environmental pollution it is mandatory to reduce the concentration of atmospheric carbon dioxide (CO2), which is largely accumulated in air through the combustion of fossil fuels. Thus, sequestration of CO2 through physisorption on solid adsorbents and their successful conversion into value added fine chemicals are the major priority areas of research today. Innovation of efficient solid CO2‐philic adsorbents together with their high mechanical/chemical stability and regeneration efficiency are the most challenging objectives to achieve this goal. In this context, porous organic polymers (POPs) owing to their high specific surface area, chemical stability, nanoscale porosity and structural diversity have huge potential to play as selective CO2 adsorbent. POPs synthesized through large varieties of reactive monomers via simple and convenient chemical routes can be the ideal adsorbents for the CO2 storage and fixation reactions. A wide range of POPs can be synthesized from different multidentate amines, aldehydes, carboxylic acids or triazine monomers through the polycondensation reactions or solid state condensation reactions. Ease of synthesis, uniform pore width together with high surface area and surface basic sites (nitrogen and other heteroelements) play crucial role in the CO2 absorption and conversion reactions. This review provides a concise account in designing POPs and their application in CO2 adsorption and fixation into reactive organic molecules for the synthesis of fuels and value added fine chemicals.

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“…[1][2][3] Recently, sorbents with large surface areas, high CO 2 capture capabilities and excellent regeneration abilities are abstracting more and more attention for the separation of CO 2 from N 2 in flue or natural gas. For this purpose, various porous solids including zeolites, 4 metal organic frameworks (MOFs), 5 porous 3 carbon 6 and microporous organic polymers (MOPs) [7][8][9] have been synthesized.…”

Section: Introductionmentioning

confidence: 99%

Facile Carbonization of Microporous Organic Polymers into Hierarchically Porous Carbons Targeted for Effective CO₂ Uptake at Low Pressures

Zhu

et al. 2016

ACS Appl. Mater. Interfaces

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The advent of microporous organic polymers (MOPs) has delivered great potential in gas storage and separation (CCS). However, the presence of only micropores in these polymers often imposes diffusion limitations, which has resulted in the low utilization of MOPs in CCS. Herein, facile chemical activation of the single microporous organic polymers (MOPs) resulted in a series of hierarchically porous carbons with hierarchically meso-microporous structures and high CO2 uptake capacities at low pressures. The MOPs precursors (termed as MOP-7-10) with a simple narrow micropore structure obtained in this work possess moderate apparent BET surface areas ranging from 479 to 819 m(2) g(-1). By comparing different activating agents for the carbonization of these MOPs matrials, we found the optimized carbon matrials MOPs-C activated by KOH show unique hierarchically porous structures with a significant expansion of dominant pore size from micropores to mesopores, whereas their microporosity is also significantly improved, which was evidenced by a significant increase in the micropore volume (from 0.27 to 0.68 cm(3) g(-1)). This maybe related to the collapse and the structural rearrangement of the polymer farmeworks resulted from the activation of the activating agent KOH at high temperature. The as-made hierarchically porous carbons MOPs-C show an obvious increase in the BET surface area (from 819 to 1824 m(2) g(-1)). And the unique hierarchically porous structures of MOPs-C significantly contributed to the enhancement of the CO2 capture capacities, which are up to 214 mg g(-1) (at 273 K and 1 bar) and 52 mg g(-1) (at 273 K and 0.15 bar), superior to those of the most known MOPs and porous carbons. The high physicochemical stabilities and appropriate isosteric adsorption heats as well as high CO2/N2 ideal selectivities endow these hierarchically porous carbon materials great potential in gas sorption and separation.

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Heptazine-Based Porous Framework for Selective CO₂ Sorption and Organocatalytic Performances

Cited by 51 publications

References 47 publications

Carbon dioxide capture in amorphous porous organic polymers

Carbon dioxide capture in amorphous porous organic polymers

Porous Organic Polymers for CO₂ Storage and Conversion Reactions

Facile Carbonization of Microporous Organic Polymers into Hierarchically Porous Carbons Targeted for Effective CO₂ Uptake at Low Pressures

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Heptazine-Based Porous Framework for Selective CO2 Sorption and Organocatalytic Performances

Cited by 51 publications

References 47 publications

Carbon dioxide capture in amorphous porous organic polymers

Carbon dioxide capture in amorphous porous organic polymers

Porous Organic Polymers for CO2 Storage and Conversion Reactions

Facile Carbonization of Microporous Organic Polymers into Hierarchically Porous Carbons Targeted for Effective CO2 Uptake at Low Pressures

Contact Info

Product

Resources

About

Heptazine-Based Porous Framework for Selective CO₂ Sorption and Organocatalytic Performances

Porous Organic Polymers for CO₂ Storage and Conversion Reactions

Facile Carbonization of Microporous Organic Polymers into Hierarchically Porous Carbons Targeted for Effective CO₂ Uptake at Low Pressures