A 2D porous porphyrin-based covalent organic framework for sulfur storage in lithium–sulfur batteries

Liao, Huaping; Wang, Hongmin; Ding, Huimin; Meng, Xiangshi; Xu, Hai; Wang, Baoshan; Ai, Xinping; Wang, Cheng

doi:10.1039/c6ta00483k

Cited by 270 publications

(169 citation statements)

References 65 publications

Supporting

Mentioning

167

Contrasting

Unclassified

Order By: Relevance

“…Meanwhile, high specific surface area and microporous structure promote the rapid migration of Na + ions; the polymer structure reduces its solubility; the large amount of redox active centers provides higher theoretical capacity. Therefore, COFs are also used as a new kind of organic electrode materials for LIBs, SIBs, and lithium−sulfur batteries, etc …”

Section: Research Progress Of Organic Electrode Materialsmentioning

confidence: 99%

Recent Progress in Advanced Organic Electrode Materials for Sodium‐Ion Batteries: Synthesis, Mechanisms, Challenges and Perspectives

Yin

Sarkar

Shi

et al. 2020

Adv Funct Materials

187

113

View full text Add to dashboard Cite

Rechargeable sodium‐ion batteries (SIBs) are considered attractive alternatives to lithium‐ion batteries for next‐generation sustainable and large‐scale electrochemical energy storage. Organic sodium‐ion batteries (OSIBs) using environmentally benign organic materials as electrodes, which demonstrate high energy/power density and good structural designability, have recently attracted great attention. Nevertheless, the practical applications and popularization of OSIBs are generally restricted by the intrinsic disadvantages related to organic electrodes, such as their low conductivity, poor stability, and high solubility in electrolytes. Here, the latest research progress with regard to electrode materials of OSIBs, ranging from small molecules to organic polymers, is systematically reviewed, with the main focus on the molecular structure design/modification, the electrochemical behavior, and the corresponding charge‐storage mechanism. Particularly, the challenges faced by OSIBs and the effective design strategies are comprehensively summarized from three aspects: function‐oriented molecular design, micromorphology regulation, and construction of organic–inorganic composites. Finally, the perspectives and opportunities in the research of organic electrode materials are discussed.

show abstract

Section: Research Progress Of Organic Electrode Materialsmentioning

confidence: 99%

Recent Progress in Advanced Organic Electrode Materials for Sodium‐Ion Batteries: Synthesis, Mechanisms, Challenges and Perspectives

Yin

Sarkar

Shi

et al. 2020

Adv Funct Materials

187

113

View full text Add to dashboard Cite

show abstract

“…Covalent organic frameworks (COFs), which are constructed by light elements (B, O, N, and C) and connected by covalent bonds, are a class of crystalline polymers and have developed rapidly in the last decade. Their tunable structures and pore sizes, high surface area values, and good thermal/chemical stabilities make them good candidates in various applications . Since the first COF was reported by Yaghi's group in 2005, numerous 2D or 3D COFs have been achieved by utilizing different kinds of building blocks via dynamic covalent chemistry principle.…”

Section: Introductionmentioning

confidence: 99%

Defective 2D Covalent Organic Frameworks for Postfunctionalization

Liu

et al. 2020

Adv Funct Materials

113

107

View full text Add to dashboard Cite

Defects are deliberately introduced into covalent organic frameworks (COFs) via a three‐component condensation strategy. The defective COFs (dCOF‐NH2‐Xs, X = 20, 40, and 60) possess favorable crystallinity and porosity, as well as have active amine functional groups as anchoring sites for further postfunctionalization. By introducing imidazolium functional groups onto the pore walls of COFs via the Schiff‐base reaction, dCOF‐ImBr‐Xs‐ and dCOF‐ImTFSI‐Xs‐based materials are employed as all‐solid‐state electrolytes for lithium‐ion conduction with a wide range of working temperatures (from 303 to 423 K), and the ion conductivity of dCOF‐ImTFSI‐60‐based electrolyte reaches 7.05 × 10−3 S cm−1 at 423 K. As far as it is known, it is the highest value for all polymeric crystalline porous material based all‐solid‐state electrolytes. Furthermore, Li/dCOF‐ImTFSI‐60@Li/LiFePO4 all‐solid Li‐ion battery displays satisfactory battery performance under 353 K. This work not only provides a new methodology to construct COFs with precisely controlled defects for postfunctionalization, but also makes them promising candidate materials as all‐solid‐state electrolytes for lithium‐ion batteries operate at high temperatures.

show abstract

“…Over the past decades porouso rganic polymers (POPs) have been growing into an exciting field of materialss cienceb ecause of their versatile applicationsi ng as storage and separation, [1][2][3][4][5][6] catalysis, [7][8][9][10] sensors, [11][12][13] energys torage, [14][15][16] and optoelectronics. [17][18][19] The most importantf eature of POPsi st heir porosity, on the basis of whichavariety of applicationsc an be developed.…”

Section: Introductionmentioning

confidence: 99%

Precision Construction of 2D Heteropore Covalent Organic Frameworks by a Multiple‐Linking‐Site Strategy

Qian

Jiang

et al. 2016

Chemistry A European J

View full text Add to dashboard Cite

Integrating different kinds of pores into one covalent organic framework (COF) endows it with hierarchical porosity and thus generates a member of a new class of COFs, namely, heteropore COFs. Whereas the construction of COFs with homoporosity has already been well developed, the fabrication of heteropore COFs still faces great challenges. Although two strategies have recently been developed to successfully construct heteropore COFs from noncyclic building blocks, they suffer from the generation of COF isomers, which decreases the predictability and controllability of construction of this type of reticular materials. In this work, this drawback was overcome by a multiple-linking-site strategy that offers precision construction of heteropore COFs containing two kinds of hexagonal pores with different shapes and sizes. This strategy was developed by designing a building block in which double linking sites are introduced at each branch of a C -symmetric skeleton, the most widely used scaffold to construct COFs with homogeneous porosity. This design provides a general way to precisely construct heteropore COFs without formation of isomers. Furthermore, the as-prepared heteropore COFs have hollow-spherical morphology, which has rarely been observed for COFs, and an uncommon staggered AB stacking was observed for the layers of the 2D heteropore COFs.

show abstract

A 2D porous porphyrin-based covalent organic framework for sulfur storage in lithium–sulfur batteries

Abstract: A rationally designed porphyrin-based COF has been employed as a host material for sulfur storage in lithium–sulfur batteries.

Cited by 270 publications

References 65 publications

Recent Progress in Advanced Organic Electrode Materials for Sodium‐Ion Batteries: Synthesis, Mechanisms, Challenges and Perspectives

Recent Progress in Advanced Organic Electrode Materials for Sodium‐Ion Batteries: Synthesis, Mechanisms, Challenges and Perspectives

Defective 2D Covalent Organic Frameworks for Postfunctionalization

Precision Construction of 2D Heteropore Covalent Organic Frameworks by a Multiple‐Linking‐Site Strategy

Contact Info

Product

Resources

About