Steric hindrance modulation of hexaazatribenzanthraquinone isomers for high-capacity and wide-temperature-range aqueous proton battery DOI Creative Commons

Mingsheng Yang,

Yuxin Hao,

Ji‐Yu Wang

и другие.

National Science Review, Год журнала: 2024, Номер 11(4)

Опубликована: Фев. 1, 2024

ABSTRACT Organic materials with rich active sites are good candidates of high-capacity anodes in aqueous batteries, but commonly low utilization limits their capacity. Herein, two isomers, symmetric and asymmetric hexaazatribenzanthraquinone (s-HATBAQ a-HATBAQ), have been synthesized a controllable manner. It has revealed for the first time that sulfuric acid catalyst can facilitate stereoselective formation s-HATBAQ. Attributed to reduced steric hindrance favor proton insertion as well amorphous structure conducive electrochemical dynamics, s-HATBAQ exhibits 1.5 times larger specific capacity than a-HATBAQ. Consequently, electrode 50% graphene oxide (s-HATBAQ-50%rGO) delivers record high 405 mAh g−1 H2SO4 electrolyte. Moreover, assembled MnO2//s-HATBAQ-50%rGO full batteries show an exceptional cycling stability at 25°C maintain ∼92% after 1000 cycles 0.5 A −80°C. This work demonstrates synthesis showcases wide-temperature-range prototype battery highlights significance precise molecular modulation organic energy storage.

Язык: Английский

Porous crystalline materials for memories and neuromorphic computing systems DOI

Guanglong Ding,

Jiyu Zhao,

Kui Zhou

и другие.

Chemical Society Reviews, Год журнала: 2023, Номер 52(20), С. 7071 - 7136

Опубликована: Янв. 1, 2023

This review highlights the film preparation methods and application advances in memory neuromorphic electronics of porous crystalline materials, involving MOFs, COFs, HOFs, zeolites.

Язык: Английский

Процитировано

101
Covalent Organic Framework with 3D Ordered Channel and Multi-Functional Groups Endows Zn Anode with Superior Stability DOI Creative Commons
Bin Li, Pengchao Ruan, Xieyu Xu

и другие.

Nano-Micro Letters, Год журнала: 2024, Номер 16(1)

Опубликована: Янв. 4, 2024

Abstract Achieving a highly robust zinc (Zn) metal anode is extremely important for improving the performance of aqueous Zn-ion batteries (AZIBs) advancing “carbon neutrality” society, which hampered by uncontrollable growth Zn dendrite and severe side reactions including hydrogen evolution reaction, corrosion, passivation, etc. Herein, an interlayer containing fluorinated zincophilic covalent organic framework with sulfonic acid groups (COF-S-F) developed on (Zn@COF-S-F) as artificial solid electrolyte interface (SEI). Sulfonic group (− SO 3 H) in COF-S-F can effectively ameliorate desolvation process hydrated ions, three-dimensional channel fluoride (-F) provide interconnected channels favorable transport ions ion-confinement effects, endowing Zn@COF-S-F dendrite-free morphology suppressed reactions. Consequently, symmetric cell stably cycle 1,000 h low average hysteresis voltage (50.5 mV) at current density 1.5 mA cm −2 . Zn@COF-S-F|MnO 2 delivers discharge specific capacity 206.8 mAh g −1 1.2 A after 800 cycles high-capacity retention (87.9%). Enlightening, building SEI metallic surface targeted design has been proved effective strategy to foster practical application high-performance AZIBs.

Язык: Английский

Процитировано

96
Constructing 2D Sandwich‐like MOF/MXene Heterostructures for Durable and Fast Aqueous Zinc‐Ion Batteries DOI
Yalei Wang,

Jun Song,

Wai‐Yeung Wong

и другие.

Angewandte Chemie International Edition, Год журнала: 2022, Номер 62(8)

Опубликована: Дек. 23, 2022

Two-dimensional metal-organic frameworks (2D MOFs) can be used as the cathodes for high-performance zinc-ion battery due to their large one-dimensional channels. However, conventionally poor electrical conductivity and low structural stability hinder advances. Herein, we report an alternately stacked MOF/MX heterostructure, exhibiting 2D sandwich-like structure with abundant active sites, improved exceptional stability. Ex situ characterizations theoretical calculations reveal a reversible intercalation mechanism of zinc ions high in heterostructure. Electrochemical tests confirm excellent Zn2+ migration kinetics ideal pseudocapacitive behaviors. As consequence, Cu-HHTP/MX shows superior rate performance (260.1 mAh g-1 at 0.1 A 173.1 4 ) long-term cycling 92.5 % capacity retention over 1000 cycles .

Язык: Английский

Процитировано

89
Covalent Organic Frameworks as Model Materials for Fundamental and Mechanistic Understanding of Organic Battery Design Principles DOI Creative Commons
Sattwick Haldar, Andreas Schneemann, Stefan Kaskel

и другие.

Journal of the American Chemical Society, Год журнала: 2023, Номер 145(25), С. 13494 - 13513

Опубликована: Июнь 12, 2023

Redox-active covalent organic frameworks (COFs) have recently emerged as advanced electrodes in polymer batteries. COFs provide ideal molecular precision for understanding redox mechanisms and increasing the theoretical charge-storage capacities. Furthermore, functional groups on pore surface of highly ordered easily accessible interaction sites, which can be modeled to establish a synergy between ex situ/in situ mechanism studies computational methods, permitting creation predesigned structure–property relationships. This perspective integrates categorizes functionalities COFs, providing deeper mechanistic investigation guest ion interactions Additionally, it highlights tunable electronic structural properties that influence activation reactions this promising electrode material.

Язык: Английский

Процитировано

78
Engineering Covalent Organic Frameworks Toward Advanced Zinc‐Based Batteries DOI
Qingqing Zhang, Peng Zhi, Jing Zhang

и другие.

Advanced Materials, Год журнала: 2024, Номер 36(24)

Опубликована: Март 16, 2024

Zinc-based batteries (ZBBs) have demonstrated considerable potential among secondary batteries, attributing to their advantages including good safety, environmental friendliness, and high energy density. However, ZBBs still suffer from issues such as the formation of zinc dendrites, occurrence side reactions, retardation reaction kinetics, shuttle effects, posing a great challenge for practical applications. As promising porous materials, covalent organic frameworks (COFs) derivatives rigid skeletons, ordered structures, permanent porosity, which endow them with application in ZBBs. This review, therefore, provides systematic overview detailing on COFs structure pertaining electrochemical performance ZBBs, following an depth discussion challenges faced by includes dendrites reactions at anode, well dissolution, structural change, slow effect cathode. Then, COF-correlated materials roles various are highlighted. Finally, outlined outlook future development is provided. The review would serve valuable reference further research into utilization

Язык: Английский

Процитировано

76
Covalent Organic Frameworks: Their Composites and Derivatives for Rechargeable Metal-Ion Batteries DOI Creative Commons
Bowen Sun, Zixu Sun,

Yi Yang

и другие.

ACS Nano, Год журнала: 2023, Номер 18(1), С. 28 - 66

Опубликована: Дек. 20, 2023

Covalent organic frameworks (COFs) have attracted considerable interest in the field of rechargeable batteries owing to their three-dimensional (3D) varied pore sizes, inerratic porous structures, abundant redox-active sites, and customizable structure-adjustable frameworks. In context metal-ion batteries, these materials play a vital role electrode materials, effectively addressing critical issues such as low ionic conductivity, limited specific capacity, unstable structural integrity. However, electrochemical characteristics developed COFs still fall short practical battery requirements due inherent electronic tradeoff between capacity redox potential, unfavorable micromorphology. This review provides comprehensive overview recent advancements application COFs, COF-based composites, derivatives including lithium-ion, lithium-sulfur, sodium-ion, sodium-sulfur, potassium-ion, zinc-ion, other multivalent batteries. The operational mechanisms are elucidated, along with strategies implemented enhance properties broaden range applications.

Язык: Английский

Процитировано

75
Two Birds One Stone: Graphene Assisted Reaction Kinetics and Ionic Conductivity in Phthalocyanine‐Based Covalent Organic Framework Anodes for Lithium‐ion Batteries DOI
Jianjun Zhao, Miaomiao Zhou, Jun Chen

и другие.

Small, Год журнала: 2023, Номер 19(44)

Опубликована: Июнь 30, 2023

This work reports a covalent organic framework composite structure (PMDA-NiPc-G), incorporating multiple-active carbonyls and graphene on the basis of combination phthalocyanine (NiPc(NH2 )4 ) containing large π-conjugated system pyromellitic dianhydride (PMDA) as anode lithium-ion batteries. Meanwhile, is used dispersion medium to reduce accumulation bulk frameworks (COFs) obtain COFs with small-volume few-layers, shortening ion migration path improving diffusion rate lithium ions in two dimensional (2D) grid layered structure. PMDA-NiPc-G showed coefficient (DLi+ 3.04 × 10-10 cm2 s-1 which 3.6 times that its form (0.84 ). Remarkably, this enables reversible capacity 1290 mAh g-1 can be achieved after 300 cycles almost no fading next at 100 mA . At high areal loading ≈3 cm-2 , full batteries assembled LiNi0.8 Co0.1 Mn0.1 O2 (NCM-811) LiFePO4 (LFP) cathodes 60.2% 74.7% retention 1 C for 200 cycles. Astonishingly, PMDA-NiPc-G/NCM-811 battery exhibits ≈100% cycling 0.2 C. Aided by analysis kinetic behavior storage theoretical calculations, capacity-enhancing mechanism are revealed. may lead more research designable, multifunctional electrochemical energy storage.

Язык: Английский

Процитировано

66
Covalent Organic Framework with Multiple Redox Active Sites for High-Performance Aqueous Calcium Ion Batteries DOI
Siqi Zhang, You‐Liang Zhu,

Siyuan Ren

и другие.

Journal of the American Chemical Society, Год журнала: 2023, Номер 145(31), С. 17309 - 17320

Опубликована: Авг. 1, 2023

Organic materials are promising for cation storage in calcium ion batteries (CIBs). However, the high solubility of organic an electrolyte and low electronic conductivity remain key challenges high-performance CIBs. Herein, a nitrogen-rich covalent framework with multiple carbonyls (TB-COF) is designed as aqueous anode to address those obstacles. TB-COF demonstrates reversible capacity 253 mAh g-1 at 1.0 A long cycle life (0.01% decay per 5 after 3000 cycles). The redox mechanism Ca2+/H+ co-intercalated COF chelating C═O C═N active sites validated. In addition, novel C═C site was identified Ca2+ storage. Both computational empirical results reveal that repetitive unit, up nine ions stored three staggered intercalation steps, involving distinct sites. Finally, evolution process radical intermediates further elucidates reaction mechanism.

Язык: Английский

Процитировано

65
Advances in COFs for energy storage devices: Harnessing the potential of covalent organic framework materials DOI

Maryam Chafiq,

Abdelkarim Chaouiki, Young Gun Ko

и другие.

Energy storage materials, Год журнала: 2023, Номер 63, С. 103014 - 103014

Опубликована: Окт. 7, 2023

Язык: Английский

Процитировано

60
Stabilizing Redox‐Active Hexaazatriphenylene in a 2D Conductive Metal–Organic Framework for Improved Lithium Storage Performance DOI

Jiacheng Yin,

Na Li, Ming Liu

и другие.

Advanced Functional Materials, Год журнала: 2023, Номер 33(21)

Опубликована: Март 10, 2023

Abstract Organic redox‐active materials are promising electrode candidates for lithium‐ion batteries by virtue of their designable structure and cost‐effectiveness. However, poor electrical conductivity high solubility in organic electrolytes limit the device's performance practical applications. Herein, π‐conjugated nitrogen‐containing heteroaromatic molecule hexaazatriphenylene (HATN) is strategically embedded with centers skeleton a Cu‐based 2D conductive metal–organic framework (2D c ‐MOF) to optimize lithium (Li) storage electrodes, which delivers improved specific capacity (763 mAh g −1 at 300 mA ), long‐term cycling stability (≈90% retention after 600 cycles excellent rate performance. The correlation experimental computational results confirms that this Li derives from maximum number active sites (CN HATN unit CO CuO 4 unit), favorable conductivity, efficient mass transfer channels. This strategy integrating multiple moieties into ‐MOF opens up new avenue design high‐performance materials.

Язык: Английский

Процитировано

51