Porous organic polymers for high-performance supercapacitors

Chemical Society Reviews, Год журнала: 2022, Номер 51(8), С. 3181 - 3225

Опубликована: Янв. 1, 2022

This review summarizes recent advances and design strategies of porous organic polymers as efficient electrode materials for high-performance supercapacitors.

Язык: Английский

---

In Situ Anchoring Ultrafine ZnS Nanodots on 2D MXene Nanosheets for Accelerating Polysulfide Redox and Regulating Li Plating

Advanced Materials, Год журнала: 2023, Номер 35(32)

Опубликована: Май 11, 2023

Lithium-sulfur (Li-S) battery is a promising energy storage system due to its cost effectiveness and high density. However, formation of Li dendrites from metal anode shuttle effect lithium polysulfides (LiPSs) S cathode impede practical application. Herein, ultrafine ZnS nanodots are uniformly grown on 2D MXene nanosheets by low-temperature (60 °C) hydrothermal method for the first time. Distinctively, nanodot-decorated (ZnS/MXene) can be easily filtered flexible freestanding film in several minutes. The ZnS/MXene used as current collector Li-metal promote uniform deposition superior lithiophilicity nanodots. powders obtained freeze drying separator decorator address LiPSs their excellent adsorbability. Theoretical calculation proves that existence obviously improve adsorption ability with Li+ LiPSs. Li-S full cells composite modified exhibit remarkable rate cycling performance. Other transition sulfides (CdS, CuS, etc.) also strategy.

Язык: Английский

---

Covalent Organic Framework for Rechargeable Batteries: Mechanisms and Properties of Ionic Conduction

Advanced Energy Materials, Год журнала: 2022, Номер 12(20)

Опубликована: Апрель 10, 2022

Abstract Ionic conduction plays a critical role in the process of electrode reactions and charge transfer kinetics rechargeable battery. Covalent organic frameworks (COFs) have emerged as an exciting new class ionic conductors, made great progress terms their application batteries. The unique features COFs, such well‐defined directional channels, functional diversity, structural robustness, endow COF‐based conductors with low diffusion energy barrier excellent temperature tolerance, which are much superior to classic inorganic or polymer conductors. Here, comprehensive analysis summary ion‐conducting behavior presented, design principles for COFs emphasized. Moreover, systematic overview recent development serving electrodes, separators, solid electrolytes, artificial interphase materials diverse battery applications, metal‐ion batteries, lithium metal lithium–sulfur lithium–CO 2 zinc–air etc., is proposed. This review expected provide theoretical guidance novel kinds conductor bearing intrinsic framework structures boost further research enthusiasm

Язык: Английский

---

Charge and mass transport mechanisms in two-dimensional covalent organic frameworks (2D COFs) for electrochemical energy storage devices

Energy & Environmental Science, Год журнала: 2023, Номер 16(3), С. 889 - 951

Опубликована: Янв. 1, 2023

Understanding charge- and mass-transport processes in two-dimensional covalent organic frameworks to design better materials energy storage devices.

Язык: Английский

---

Advances in the structure design of substrate materials for zinc anode of aqueous zinc ion batteries

Green Energy & Environment, Год журнала: 2022, Номер 8(6), С. 1531 - 1552

Опубликована: Сен. 5, 2022

Aqueous zinc ion batteries (AZIBs) demonstrate tremendous competitiveness and application prospects because of their abundant resources, low cost, high safety, environmental friendliness. Although the advanced electrochemical energy storage systems based on have been greatly developed, many severe problems associated with Zn anode impede its practical application, such as dendrite formation, hydrogen evolution, corrosion passivation phenomenon. To address these drawbacks, electrolytes, separators, alloys, interfacial modification structural design employed at present by scientists. Among them, for is relatively mature, which generally believed to enhance electroactive surface area anode, reduce local current density, promote uniform distribution ions anode. In order explore new research directions, it crucial systematically summarize materials. Herein, this review focuses challenges in strategies three-dimensional (3D) structure substrate materials including carbon materials, metal other Finally, future directions perspectives about are presented developing high-performance AZIBs.

Язык: Английский

---

Metal-Coordinated Covalent Organic Frameworks as Advanced Bifunctional Hosts for Both Sulfur Cathodes and Lithium Anodes in Lithium–Sulfur Batteries

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(13), С. 9385 - 9394

Опубликована: Март 21, 2024

The shuttling of polysulfides on the cathode and uncontrollable growth lithium dendrites anode have restricted practical application lithium–sulfur (Li–S) batteries. In this study, a metal-coordinated 3D covalent organic framework (COF) with homogeneous distribution nickel–bis(dithiolene) N-rich triazine centers (namely, NiS4-TAPT) was designed synthesized, which can serve as bifunctional hosts for both sulfur cathodes anodes in Li–S abundant Ni N-sites NiS4-TAPT greatly enhance adsorption conversion polysulfides. Meanwhile, presence Ni–bis(dithiolene) enables uniform Li nucleation at anode, thereby suppressing dendrites. This work demonstrated effectiveness integrating catalytic sites to optimize chemical interactions between host materials redox-active intermediates, potentially facilitating rational design COF high-performance secondary

Язык: Английский

---

Towards better Mg metal anodes in rechargeable Mg batteries: Challenges, strategies, and perspectives

Energy storage materials, Год журнала: 2022, Номер 52, С. 299 - 319

Опубликована: Авг. 10, 2022

Язык: Английский

---

Redox-Active Covalent Organic Frameworks with Nickel–Bis(dithiolene) Units as Guiding Layers for High-Performance Lithium Metal Batteries

Journal of the American Chemical Society, Год журнала: 2022, Номер 144(18), С. 8267 - 8277

Опубликована: Апрель 28, 2022

Combining the chemistry of metal-organic frameworks (MOFs) and covalent organic (COFs) can bring new opportunities for design advanced materials with enhanced tunability functionality. Herein, we constructed two COFs based on Ni-bis(dithiolene) units imine bonds, representing a bridge between traditional MOFs COFs. The Ni-bis(dithiolene)tetrabenzaldehyde as 4-connected linker was initially synthesized, which further linked by tetra(aminophenyl)pyrene (TAP) or 3-connected tris(aminophenyl)amine (TAA) linkers into COFs, namely, Ni-TAP Ni-TAA. shows two-dimensional sql network, while TAA is twofold interpenetrated framework an ffc topology. They both exhibit high Brunauer-Emmett-Teller surface area (324 689 m2 g-1 Ni-TAA, respectively), fairly good conductivity (1.57 × 10-6 9.75 10-5 S m-1 chemical stability (a stable pH window 1-14 Ni-TAA). When applied in lithium metal batteries intermediate layer guiding uniform Li electrodeposition, Ni-TAA displayed impressive lithiophilicity Li-ion conductivity, enabling achievement smooth dense deposition clear columnar morphology plating/stripping behaviors utilization, anticipated to pave way upgrade anodes application high-energy-density battery systems.

Язык: Английский

---

The order–disorder conundrum: a trade-off between crystalline and amorphous porous organic polymers for task-specific applications

Journal of Materials Chemistry A, Год журнала: 2022, Номер 10(33), С. 17077 - 17121

Опубликована: Янв. 1, 2022

The review unravels the order–disorder conundrum in porous organic polymers view of task-specific applications through a comparative deliberation.

Язык: Английский

---

Covalent Organic Frameworks (COFs) for heterogeneous catalysis: Recent trends in design and synthesis with structure-activity relationship

Materials Today, Год журнала: 2023, Номер 67, С. 229 - 255

Опубликована: Июнь 10, 2023

Язык: Английский

---