Microporous Polycarbazole with High Specific Surface Area for Gas Storage and Separation

Chen, Qi; Luo, Min; Hammershøj, Peter; Zhou, Ding; Han, Ying; Laursen, Bo W.; Yan, Chao‐Guo; Han, Bao‐Hang

doi:10.1021/ja300438w

Cited by 680 publications

(551 citation statements)

References 38 publications

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“…The polymer 4,7-dicarbazyl-[2,1,3]-benzothiadiazole (PDCzBT) was synthesized by FeCl 3 oxidation coupling polymerization 23,31 as shown in Scheme 1. The SEM image (Fig.…”

Section: Resultsmentioning

confidence: 99%

Conjugated microporous polymers with excellent electrochemical performance for lithium and sodium storage

et al. 2015

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Conjugated microporous polymers, which exhibit high specific capacity, superior cycle stability and remarkable rate capability, are explored as high-performance electrode materials for lithium and sodium storage. Their excellent electrochemical performance can be attributed to their conductive frameworks, plentiful redox-active units, high specific surface area and homogeneous microporous structure.In an effort to address the energy crisis and environmental issues, clean and sustainable energy systems have been investigated, such as solar cells, fuel cells and rechargeable batteries. Currently, lithium ion batteries (LIBs) dominate the portable consumer electronic market due to their high energy density.

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“…The polymer 4,7-dicarbazyl-[2,1,3]-benzothiadiazole (PDCzBT) was synthesized by FeCl 3 oxidation coupling polymerization 23,31 as shown in Scheme 1. The SEM image (Fig.…”

Section: Resultsmentioning

confidence: 99%

Conjugated microporous polymers with excellent electrochemical performance for lithium and sodium storage

et al. 2015

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“…Asian J. 2018,13,[9][10][11][12][13][14][15][16][17][18][19] www.chemasianj.org 2018 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheim activity waso bservedw ith Ru/CMP-5d after three cycles,t he ee value decreased from 94 %t o9 0% (reaction time:2 4h). Additionally, CMP-5d supported Ir species displayedh ighera ctivity for asymmetrich ydrogenationo fq uinaldine than the homogeneousI r/BINAP system.…”

Section: Cmps For Heterogeneous Ru-catalyzed Asymmetric Hydrogenationmentioning

confidence: 99%

“…Asian J. 2018,13,[9][10][11][12][13][14][15][16][17][18][19] www.chemasianj.org Figure 10. Structureso fCMPs used as photocatalysts.…”

Section: Cmps For Heterogeneous Photocatalytic Applicationsmentioning

confidence: 99%

Conjugated Microporous Polymers for Heterogeneous Catalysis

Zhou

Zhan

2017

Chemistry An Asian Journal

122

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Conjugated microporous polymers (CMPs) are a class of crosslinked polymers that combine permanent micropores with p-conjugated skeletons and possess three-dimensional (3D) networks. Compared with conventionalm aterials such as metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), CMPs usually have superior chemical and thermals tability.C MPs have made significant progress in heterogeneous catalysis in the past seven years. With ab ottom-up strategy,c atalytic moietiesc an be directly introduced into in the framework to produce heterogeneous CMP catalysts. Higher activity,s tability,a nd selectivity can be obtained with heterogeneousC MP catalysts in comparison with their homogeneous analogs.I na ddition, CMP catalysts can be easily isolated and recycled. In this review,w ef ocus on CMPs as an intriguing platform for developingv arious highly efficient and recyclable heterogeneous catalysts in organic reactions. The design, synthesis, and structure of these CMP catalysts are also discussed in this focus review.

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“…并且研究表明, 将杂原子引入有机多孔材料中可能实现通过提高骨架的电子传导率增强聚合物骨架与客体分子间的偶极-偶极相互作用, 从而提高材料的气体吸附性能 [21] . 因此, 我们首先探究了这两种多孔材料的氢气吸附性能, 图 6 是两种聚合物在 77 K 条件下的氢气吸附等温线, 由吸附等温线可知当绝对压力达到 [36] , 仅低于部分比表面积较高, 吸附性能也较优异的材料如 CPOP-1 [37] . 由于具有更高的比表面积, TrpPOP-1 与同类型多孔聚合物 PECONF-1 (～8.2 wt%)和 PECONF-2 (～12.5 wt%)相比, Table 1 Porosity properties and gas uptake capacities of polymers )的吸附热大小相当 [30] .…”

Section: Triptycene-based Microporous Poly(diaminophosphazene)unclassified

Triptycene-Based Microporous Poly(diaminophosphazene)

Li¹,

Li²,

Chen³

et al. 2015

Acta Chim. Sinica

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Porous materials have recently drawn much attention owing to their potential applications in gas storage, separations, and heterogeneous catalysis. As a D 3h -symmetric rigid structure, triptycene and its derivatives can be used as suitable building blocks to prepare porous materials with high porosities. Based on the air-stable hexaammoniumtriptycene hexachloride and hexachlorocyclotriphosphazene, porous polymers (TrpPOP-1 and TrpPOP-2) were prepared via one-step polymerization through N-P linkage. The two polymers were characterized at the molecular level by 13 C NMR and 31 P NMR as well as IR. The two polymers possess type I nitrogen gas sorption isotherm according to the IUPAC classification. Both TrpPOP-1 and TrpPOP-2 show permanent microporous nature with the Brunauer-Emmett-Teller specific surface area of 790 and 640 m 2 •g -1 and exhibit narrow pore size distribution, with dominant pore size locating at 0.59 and 0.63 nm, respectively. Porous polymers with a narrow pore distribution may interact attractively with small gas molecules through improved molecular interaction. Their gas (hydrogen and carbon dioxide) adsorption capacities were measured based on the obtained gas physisorption isotherms. The hydrogen uptake of TrpPOP-1 is 1.30 wt% at 77 K and 1.0 bar, and the carbon dioxide uptake is up to 16.2 wt% at 273 K and 1.0 bar. The higher carbon dioxide loading capacity of TrpPOP-1 may be attributed to its higher charge density at the nitrogen sites of networks that can facilitate local-dipole/quadrupole interactions with carbon dioxide. Meanwhile, the adsorption capacity of the obtained materials for poisonous and harmful organic vapors such as formaldehyde was also investigated. TrpPOP-2 shows a better formaldehyde uptake, which is 5.5 mg•g -1 at 298 K. Formaldehyde, as a volatile organic compound, is a major air pollutant indoor, therefore, the uptake performance of TrpPOP-2 for formaldehyde would be very promising to remove harmful indoor air pollutant in the environment.

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Microporous Polycarbazole with High Specific Surface Area for Gas Storage and Separation

Cited by 680 publications

References 38 publications

Conjugated microporous polymers with excellent electrochemical performance for lithium and sodium storage

Conjugated microporous polymers with excellent electrochemical performance for lithium and sodium storage

Conjugated Microporous Polymers for Heterogeneous Catalysis

Triptycene-Based Microporous Poly(diaminophosphazene)

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