Supercapacitive Energy Storage and Electric Power Supply Using an Aza‐Fused π‐Conjugated Microporous Framework

Kou, Yan; Xu, Yanhong; Guo, Zhaoqi; Jiang, Donglin

doi:10.1002/anie.201103493

Cited by 526 publications

(382 citation statements)

References 31 publications

Supporting

Mentioning

361

Contrasting

Unclassified

Order By: Relevance

“…The surface and pore volume are comparable to or higher than previously reported CMPs. [27][28][29][30] The micropore volume V 0.1 is 0.45 cm 3 g À1 , and simultaneously the V 0.1 /V tol value is 0.64, which means that micropores are dominant in PDCzBT. This is also certied by the pore size distribution (Fig.…”

Section: Resultsmentioning

confidence: 98%

“…However, there have been only a few reports of CMPs applied for Li or Na storage. Recently, Jiang and coworkers have applied CMPs for supercapacitors 27 and cathodes of LIBs. 28 Sakaushi and co-workers applied bipolar porous polymeric frameworks for all-organic 29 and Naorganic energy storage devices, 30 exhibiting excellent electrochemical performance.…”

Section: 2mentioning

confidence: 99%

See 1 more Smart Citation

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

et al. 2015

View full text Add to dashboard Cite

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.

show abstract

Section: Resultsmentioning

confidence: 98%

Section: 2mentioning

confidence: 99%

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

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Synthetic 2D organic frameworks composed of fused aromatic rings [3] have emerged as ahighly tunable alternative to nanopore-grafted (or holey) graphene,since they combine an extended 2D p system with permanent nanometer-sized pores.F urthermore,s ince such 2D polymers are synthesized by bottom-up approaches,h eteroatoms can be incorporated into the framework with relative ease,w hich provides an additional way to modulate their electronic structure and their properties.F or example,t he exchange of Catoms for Natoms in 2D organic frameworks has resulted in more efficient materials for energy applications,s uch as electrocatalysts for the oxygen reduction reaction (ORR), [4] the hydrogen evolution reaction (HER), [5] supercapacitors, [6] and batteries. [6a, 7] Thepreparation of stable dispersions of individual layers of 2D organic frameworks would be ideal from several perspectives.F irst, it would facilitate the sorting of layers by size,c omposite preparation by solution mixing, chemical modification, and structural and optoelectronic characterization.…”

mentioning

confidence: 99%

Twisted Aromatic Frameworks: Readily Exfoliable and Solution‐Processable Two‐Dimensional Conjugated Microporous Polymers

et al. 2017

View full text Add to dashboard Cite

Tw isted two-dimensional aromatic frameworks have been prepared by overcrowdingthe nodes with bulky and rigid substituents.T he highly distorted aromatic framework with alternating out-of-plane substituents results in diminished interlayer interactions that favor the exfoliation and dispersion of individual layers in organic media.The discovery of graphene [1] has opened up exciting possibilities for developing two-dimensional (2D) polymers, [2] such as 2D conjugated microporous polymers (2D-CMPs) and 2D covalent organic frameworks (2D-COFs), for awide range of applications, [2] including electronics,e nergy conversion and storage,g as storage and separation, catalysis,a nd sensing. Synthetic 2D organic frameworks composed of fused aromatic rings [3] have emerged as ahighly tunable alternative to nanopore-grafted (or holey) graphene,since they combine an extended 2D p system with permanent nanometer-sized pores.F urthermore,s ince such 2D polymers are synthesized by bottom-up approaches,h eteroatoms can be incorporated into the framework with relative ease,w hich provides an additional way to modulate their electronic structure and their properties.F or example,t he exchange of Catoms for Natoms in 2D organic frameworks has resulted in more efficient materials for energy applications,s uch as electrocatalysts for the oxygen reduction reaction (ORR), [4] the hydrogen evolution reaction (HER), [5] supercapacitors, [6] and batteries. [6a, 7] Thepreparation of stable dispersions of individual layers of 2D organic frameworks would be ideal from several perspectives.F irst, it would facilitate the sorting of layers by size,c omposite preparation by solution mixing, chemical modification, and structural and optoelectronic characterization.[8] Second, it would enable the formulation of such 2D materials in inks [8] and thus would enable low-cost, large-area liquid-deposition methods,such as spin coating, spray coating, or inkjet printing.H owever,s imilarly to graphene,s ynthetic 2D organic frameworks are very difficult to process because of the great tendency of the individual layers to aggregate by noncovalent interlayer interactions.A lthough several examples of the delamination of 2D organic frameworks by mechanical [9] and solvent-assisted methods, [10] electrostatic repulsion, [11] and chemical methods [12] have been reported, these methods provide materials that are af ew layers thick and thereby show that the individualization of layers is still achallenging task.Herein, we report anew and unconventional approach for obtaining dispersions of individual layers of 2D-CMPs composed of fused aromatic rings on the basis of the introduction of twists in their framework by overcrowding the nodes of the framework with bulky and rigid substituents, which are forced above and below the plane (Figure 1). The highly distorted aromatic framework with alternating out-ofplane substituents results in diminished interlayer interactions,t hus favoring the exfoliation and dispersion of individual layers in organic ...

show abstract

“…[1] They show outstanding properties in gas storage, [2] sensing, [3] luminescence, [4] catalysis, [5] energy transfer, [6] and electric energy storage. [7, 8, 9a] CMPs are currently synthesized through solution-phase polymerizations,i ncluding Suzuki reaction, [3a, 4b,5a, 6a] Sonogashira reactions, [2b,d,e,5b, 6b,c,7] Yamamoto reactions, [3a,4a, 5c] oxidative coupling reaction, [2a,c,d, 3c] cyclotrimerization reaction, [5e,9] Schiff-base reaction, [10] phenazine ring-fusion reaction, [8] and Friedel-Crafts reaction. [11] These reactions covalently link organic building blocks into p-conjugated polymer skeletons.…”

mentioning

confidence: 99%

π‐Conjugated Microporous Polymer Films: Designed Synthesis, Conducting Properties, and Photoenergy Conversions

Huang

Chen

et al. 2015

Angewandte Chemie

Self Cite

View full text Add to dashboard Cite

Conjugated microporous polymers are au nique class of polymers that combine extended p-conjugation with inherent porosity.H owever,t hese polymers are synthesized through solution-phase reactions to yield insoluble and unprocessable solids,w hichp reclude not only the evaluation of their conducting properties but also the fabrication of thin films for device implementation. Here,wereport astrategy for the synthesis of thin films of p-conjugated microporous polymers by designing thiophene-based electropolymerization at the solution-electrode interface.H igh-quality films are prepared on al arge area of various electrodes,t he film thickness is controllable,a nd the films are used for device fabrication. These films are outstanding hole conductors and, upon incorporation of fullerenes into the pores,f unction as highly efficient photoactive layers for energy conversions.Our film strategy mayb oost the applications in photocatalysis, energy storage,and optoelectronics.Advances over the past decade in polymer chemistry have had as ubstantial effect on the design of p-conjugated microporous polymers (CMPs).[1] They show outstanding properties in gas storage,

show abstract

Supercapacitive Energy Storage and Electric Power Supply Using an Aza‐Fused π‐Conjugated Microporous Framework

Cited by 526 publications

References 31 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

Twisted Aromatic Frameworks: Readily Exfoliable and Solution‐Processable Two‐Dimensional Conjugated Microporous Polymers

π‐Conjugated Microporous Polymer Films: Designed Synthesis, Conducting Properties, and Photoenergy Conversions

Contact Info

Product

Resources

About