Post-synthesis modification of porous organic polymers with amine: a task-specific microenvironment for CO2 capture

Li, Yankai; Li, Yang; Zhu, Xiang; Hu, Jun; Liu, Honglai

doi:10.1007/s40789-016-0148-8

Cited by 33 publications

(14 citation statements)

References 44 publications

(38 reference statements)

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“…In contrast, POPs are a novel class of amine supports constructed from purely organic units via covalent bonds. ,,− Compared with MOFs, POPs generally perform better under realistic humid conditions by virtue of their inherent structural stability and hydrophobicity . Moreover, the potential diversity of synthetic organic chemistry allows the preparation of cost-effective POPs with both desired porosity and varied structure.…”

Section: Introductionmentioning

confidence: 99%

Polyamine-Appended Porous Organic Copolymers with Controlled Structural Properties for Enhanced CO₂ Capture

Yang

Chuah

Bae

2021

ACS Sustainable Chem. Eng.

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Capturing CO2 from large stationary sources, such as coal-burning power plants, has been proposed to limit the rise of average global temperature. Currently, however, it is not economically feasible to implement CO2 capture facilities in power plants due to their high energy consumption. In this regard, the development of efficient and cost-effective CO2 adsorbents is still an urgent requirement. We report a series of novel amine-containing solid materials prepared by synthesizing porous organic copolymers, labeled PBTP-(x), by copolymerization of 1,3,5-trichlorobenzyl and 4,4′-bis(chloromethyl) biphenyl, and subsequently decorating the PBTP-(x) with alkylamines via a one-step postsynthetic grafting. Among the samples synthesized, PBTP-(1:4)-DETA displays a promising combination of high CO2 adsorption capacity, large CO2 selectivity over N2, and fast sorption kinetics. Furthermore, it not only retains a high CO2/N2 separation performance but also has outstanding stability under repeated adsorption–desorption cycling in the presence of water vapor under dynamic flow conditions, implying its potential application to postcombustion CO2 capture.

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Section: Introductionmentioning

confidence: 99%

Polyamine-Appended Porous Organic Copolymers with Controlled Structural Properties for Enhanced CO₂ Capture

Yang

Chuah

Bae

2021

ACS Sustainable Chem. Eng.

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“…One of the most important problems in the global warming concept is emission of CO 2 due to usage of fossil fuels. − Nowadays, with different environmental problems, including global warming, melting glaciers, and acidification of the oceans, CO 2 capture from the atmosphere has been well justified. , Carbon capture and storage (CCS) , used for reducing CO 2 emissions in the atmosphere is a promising technology to deal with global warming. ,, Various CO 2 capture technologies such as membrane, cryogenic, absorption by chemical solvents, and solid adsorbents have been developed, each of which has advantages and disadvantages. ,, Generally, one of the best strategies of enhancing CO 2 capture capacity is adsorption by porous materials such as MOFs, zeolites, active carbons, and porous organic polymers (POPs). ,− In the past few decades, POPs have been widely used in gas storage and separation, catalyst bases and sensors, drug delivery, and chromatography . The main advantage of POPs in comparison with other porous materials such as MOFs, zeolites, and active carbons is that these materials can be synthesized in various ways, which can form different structures by intermingling different parts .…”

Section: Introductionmentioning

confidence: 99%

Benzene-Based Hyper-Cross-Linked Polymer with Enhanced Adsorption Capacity for CO₂ Capture

2019

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Hyper-cross-linked polymers (HCPs), as one of the variety of microporous polymers with nanosized pores, have attracted a lot of interest in carbon dioxide adsorption and storage. A HCP adsorbent based on benzene and Friedel–Crafts reaction was synthesized for CO2 adsorption. The response surface methodology is suggested for optimizing the process parameters in order to determine the highest possible CO2 adsorption capacity of the HCP adsorbent. Pressure, temperature, ratio (cross-linker/benzene), and synthesis time are considered as activation parameters, and adsorption capacity (mg/g) is proposed as the response of this method. Additionally, experimental adsorption data were fitted by the adsorption isotherm and kinetic models to obtain the adsorbent behavior. Finally, thermodynamic modeling was accomplished and enthalpy, entropy, and Gibbs free energy differences of adsorption at 293 K were obtained at −20.612 kJ/mol, −0.043 kJ/mol K, and −7.950 kJ/mol, respectively. The optimum values of pressure, temperature, ratio (cross-linker/benzene), and synthesis time within the experimental range that maximize CO2 adsorption capacity were obtained at 7.8 bar, 294 K, 2.75, and 13.6 h, respectively. The optimized value of CO2 adsorption capacity by benzene-based HCP was obtained as 262 mg/g.

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“…S1) . The selectivity results show that the selectivity increases with the increase of temperature, which may be due to the microporous environment of the Si‐PAs . Selectivity for CO 2 over CH 4 of Si‐PA‐1 at 273 K is 17.5 and 298 K is 24.5.…”

Section: Resultsmentioning

confidence: 94%

Selective Carbon Dioxide Capture Using Silica‐Supported Polyaminals

et al. 2019

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The development of a stable CO2 sequestration material is an urgent need for effective CO2 capture applications. In this sense, the silica supported materials are envisaged as promising materials. In this work the synthesis of silica supported polyaminals (Si‐PA‐1 and Si‐PA‐2) by single step condensation is achieved and characterized by FT‐IR and solid‐state NMR spectral techniques. The surface morphology and crystallinity are studied using SEM and PXRD techniques. The BET surface of the Si‐PA‐1 and Si‐PA‐2 is around 155 m2/g which is demonstrated using N2 adsorption. The CO2 uptake for Si‐PA‐1 and Si‐PA‐2 are observed around 45 mg/g. The high selectivity of CO2 over N2 (180.6) and considerable selectivity of CO2 over CH4 (38.7) are observed. Two types of adsorption isotherm models (Langmuir and Freundlich model) are used to evaluate isotherm parameters. Thermodynamic parameters such as Gibb's free energy, change in enthalpy and entropy are calculated from Van't Hoff equation and these results suggest that the adsorption is spontaneous and exothermic process. The physical interaction between Si‐PAs and CO2 is confirmed by the heat of adsorption (37‐22 KJ/mol) evaluated from Clausius–Clapeyron equation.

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Post-synthesis modification of porous organic polymers with amine: a task-specific microenvironment for CO2 capture

Cited by 33 publications

References 44 publications

Polyamine-Appended Porous Organic Copolymers with Controlled Structural Properties for Enhanced CO₂ Capture

Polyamine-Appended Porous Organic Copolymers with Controlled Structural Properties for Enhanced CO₂ Capture

Benzene-Based Hyper-Cross-Linked Polymer with Enhanced Adsorption Capacity for CO₂ Capture

Selective Carbon Dioxide Capture Using Silica‐Supported Polyaminals

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Post-synthesis modification of porous organic polymers with amine: a task-specific microenvironment for CO2 capture

Cited by 33 publications

References 44 publications

Polyamine-Appended Porous Organic Copolymers with Controlled Structural Properties for Enhanced CO2 Capture

Polyamine-Appended Porous Organic Copolymers with Controlled Structural Properties for Enhanced CO2 Capture

Benzene-Based Hyper-Cross-Linked Polymer with Enhanced Adsorption Capacity for CO2 Capture

Selective Carbon Dioxide Capture Using Silica‐Supported Polyaminals

Contact Info

Product

Resources

About

Polyamine-Appended Porous Organic Copolymers with Controlled Structural Properties for Enhanced CO₂ Capture

Polyamine-Appended Porous Organic Copolymers with Controlled Structural Properties for Enhanced CO₂ Capture

Benzene-Based Hyper-Cross-Linked Polymer with Enhanced Adsorption Capacity for CO₂ Capture