Synthesis, Postsynthetic Modifications, and Applications of the First Quinoxaline-Based Covalent Organic Framework

Kuehl, Valerie A.; Duong, Phuoc H.H.; Sadrieva, Deana; Amin, Samrat A.; She, Yuqi; Li-Oakey, Katie Dongmei; Yarger, Jeffery L.; Parkinson, B. A.; Hoberg, John O.

doi:10.1021/acsami.1c08854

Cited by 22 publications

(29 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…No works have dealt with the use of MCRs to create 3D COFs, which can theoretically be synthesized using polyhedral (rather than planar) monomers or by adding geometric constraints to 2D monomers . Furthermore, by connecting the two adjacent layers of a 2D COF with a third component, one may fabricate geometrically designed 3D COFs with unprecedented topologies . We expect that studies on 3D COFs will be published soon after the difficulties of crystallization and structure determination are overcome.…”

Section: Summary and Further Challengesmentioning

confidence: 99%

Construction of Covalent Organic Frameworks via Multicomponent Reactions

2023

View full text Add to dashboard Cite

Multicomponent reactions (MCRs) combine at least three reactants to afford the desired product in a highly atomeconomic way and are therefore viewed as efficient one-pot combinatorial synthesis tools allowing one to significantly boost molecular complexity and diversity. Nowadays, MCRs are no longer confined to organic synthesis and have found applications in materials chemistry. In particular, MCRs can be used to prepare covalent organic frameworks (COFs), which are crystalline porous materials assembled from organic monomers and exhibit a broad range of properties and applications. This synthetic approach retains the advantages of small-molecule MCRs, not only strengthening the skeletal robustness of COFs, but also providing additional driving forces for their crystallization, and has been used to prepare a series of robust COFs with diverse applications. The present perspective article provides the general background for MCRs, discusses the types of MCRs employed for COF synthesis to date, and addresses the related critical challenges and future perspectives to inspire the MCR-based design of new robust COFs and promote further progress in this emerging field.

show abstract

Section: Summary and Further Challengesmentioning

confidence: 99%

Construction of Covalent Organic Frameworks via Multicomponent Reactions

2023

View full text Add to dashboard Cite

show abstract

“…However, resonances in 173 ppm were unexpectedly observed, corresponding to the C=O of DMF solvent. Even with extensively purified processes, all residual solvent molecules were not eliminated and were probably wrapped between the layers [20] . But the residual solvent molecules make no difference to the stability of the HPP‐COF framework.…”

Section: Resultsmentioning

confidence: 99%

A Covalent Organic Framework as a Long‐life and High‐Rate Anode Suitable for Both Aqueous Acidic and Alkaline Batteries

et al. 2023

View full text Add to dashboard Cite

Aqueous rechargeable batteries are prospective candidates for large-scale grid energy storage. However, traditional anode materials applied lack acid-alkali co-tolerance. Herein, we report a covalent organic framework containing pyrazine (C=N) and phenylimino (À NHÀ ) groups (HPP-COF) as a long-cycle and high-rate anode for both acidic and alkaline batteries. The HPP-COF's robust covalent linkage and the hydrogen bond network between À NHÀ and water molecules collectively improve the acid-alkaline co-tolerance. More importantly, the hydrogen bond network promotes the rapid transport of H + /OH À by the Grotthuss mechanism. As a result, the HPP-COF delivers a superior capacity and cycle stability (66.6 mAh g À 1 @ 30 A g À 1 , over 40000 cycles in 1 M H 2 SO 4 electrolyte; 91.7 mAh g À 1 @ 100 A g À 1 , over 30000 cycles @ 30 A g À 1 in 1 M NaOH electrolyte). The work opens a new direction for the structural design and application of COF materials in acidic and alkaline batteries.

show abstract

“…In general, rigid hexavalent ( C 6 ), tetravalent ( C 4 ), trivalent ( C 3 ) and divalent ( C 2 ) ligands are selected as 2D‐COFs component units [35] . 2D‐COFs are generally obtained by condenzation reaction with selecting a knot and a linker [36] . The common combinations to build 2D‐COFs are [ C 2 + C 2 ], [ C 3 + C 2 ], [ C 3 + C 3 ], [ C 4 + C 2 ], [ C 4 + C 4 ], [ C 6 + C 2 ] and [ C 6 + C 3 ] (Figure 2).…”

Section: Synthesis Strategies and Topological Structure Design Of Cofsmentioning

confidence: 99%

“…[35] 2D-COFs are generally obtained by condenzation reaction with selecting a knot and a linker. [36] The common combinations to build 2D-COFs are 2). The reaction between two divalent [C 2 + C 2 ], trivalent and divalent [C 3 + C 2 ] or two trivalent ligands [C 3 + C 3 ] will produce hexagonal hcb topology (Figure 2a-c).…”

Section: Topological Structures Of Cofsmentioning

confidence: 99%

Covalent Organic Frameworks as Emerging Battery Materials

Wang

2023

Batteries & Supercaps

View full text Add to dashboard Cite

Covalent organic frameworks (COFs) are emerging as promising energy storage materials due to their unique characteristics, such as adjustable thickness, designable topology, superior stability and controllable pore size distribution. Consequently, COFs can provide diversified high‐rate carrier transport pathways, and the performance of COFs can be easily improved by adjusting conjugated skeleton types, overlapping p‐electron clouds between stacks, and modifying open channels with functional groups. The state‐of‐the‐art COFs electrode materials based on synthetic method and electrochemical performance in recent years are summarized and discussed in this review. The synthesis method, topological structure and application in metal ion (such as Li+, Na+, K+, Zn2+, Mg2+, Al3+, et. al) batteries of COFs electrodes are critically accounted. Finally, we briefly discuss the major challenges in the field that needs to be addressed to pave the way for industrial applications. Although there are still many arduous tasks to be tackled, the burgeoning of COFs‐related technologies and applications in batteries provide a ponderable field for commercial process in the short run.

show abstract

Synthesis, Postsynthetic Modifications, and Applications of the First Quinoxaline-Based Covalent Organic Framework

Cited by 22 publications

References 24 publications

Construction of Covalent Organic Frameworks via Multicomponent Reactions

Construction of Covalent Organic Frameworks via Multicomponent Reactions

A Covalent Organic Framework as a Long‐life and High‐Rate Anode Suitable for Both Aqueous Acidic and Alkaline Batteries

Covalent Organic Frameworks as Emerging Battery Materials

Contact Info

Product

Resources

About