A Molecular‐Sieve Electrolyte Membrane enables Separator‐Free Zinc Batteries with Ultralong Cycle Life

Advanced Materials, Год журнала: 2022, Номер 34(43)

Опубликована: Сен. 6, 2022

The poor stability of the zinc-metal anode is a main bottleneck for practical application aqueous zinc-ion batteries. Herein, series molecular sieves with various channel sizes are investigated as an electrolyte host to regulate ionic environment Zn2+ on surface zinc and realize separator-free Based ZSM-5 sieve, solid-liquid mixed membrane constructed uniformize transport ions foster dendrite-free Zn deposition. Side reactions can also be suppressed through tailoring solvation sheath restraining activity water molecules in electrolyte. A V2 O5 ||ZSM-5||Zn full cell shows significantly enhanced performance compared cells using glass fiber separator. Specifically, it exhibits high specific capacity 300 mAh g-1 , retention 98.67% after 1000 cycles 82.67% 3000 at 1 . It attested that zeolites (ZSM-5, H-β, Bate) 5-7 Å result best cycle stability. Given low cost recyclability ZSM its potent function, this work may further lower boost industrial AZIBs.

Язык: Английский

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Lattice‐Strain Engineering for Heterogenous Electrocatalytic Oxygen Evolution Reaction

Advanced Materials, Год журнала: 2023, Номер 35(39)

Опубликована: Янв. 14, 2023

Abstract The energy efficiency of metal–air batteries and water‐splitting techniques is severely constrained by multiple electronic transfers in the heterogenous oxygen evolution reaction (OER), high overpotential induced sluggish kinetics has become an uppermost scientific challenge. Numerous attempts are devoted to enabling activity, selectivity, stability via tailoring surface physicochemical properties nanocatalysts. Lattice‐strain engineering as a cutting‐edge method for tuning geometric configuration metal sites plays pivotal role regulating interaction catalytic surfaces with adsorbate molecules. By defining d‐band center descriptor structure–activity relationship, individual contribution strain effects within state‐of‐the‐art electrocatalysts can be systematically elucidated OER optimization mechanism. In this review, fundamentals advancements strain‐catalysts showcased innovative trigger strategies enumerated, particular emphasis on feedback mechanism between precise regulation lattice‐strain optimal activity. Subsequently, modulation various attributes categorized impediments encountered practicalization strained effect discussed, ending outlook future research directions burgeoning field.

Язык: Английский

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Ice-Assisted Synthesis of Highly Crystallized Prussian Blue Analogues for All-Climate and Long-Calendar-Life Sodium Ion Batteries

Nano Letters, Год журнала: 2022, Номер 22(3), С. 1302 - 1310

Опубликована: Янв. 28, 2022

For practical sodium-ion batteries, both high electrochemical performance and cost efficiency of the electrode materials are considered as two key parameters. Prussian blue analogues (PBAs) broadly recognized promising cathode due to their low cost, theoretical capacity, cycling stability, although they suffer from low-crystallinity-induced deterioration. Herein, a facile "ice-assisted" strategy is presented prepare highly crystallized PBAs without any additives. By suppressing structure defects, exhibits capacity 123 mAh g-1 with initial Coulombic 87.2%, long lifespan 3000 cycles, significantly enhanced high/low temperature calendar life. Remarkably, distortion sodium diffusion coefficient have been identified via in situ synchrotron powder diffraction first-principles calculations, while its thermal stability has analyzed by heated X-ray diffraction. We believe results could pave way low-cost large-scale application all-climate batteries.

Язык: Английский

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Advances and perspectives of ZIFs-based materials for electrochemical energy storage: Design of synthesis and crystal structure, evolution of mechanisms and electrochemical performance

Energy storage materials, Год журнала: 2021, Номер 43, С. 531 - 578

Опубликована: Сен. 23, 2021

Язык: Английский

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MOF-derived metal sulfides for electrochemical energy applications

Energy storage materials, Год журнала: 2022, Номер 51, С. 840 - 872

Опубликована: Июль 18, 2022

Язык: Английский

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Magnetic Fe3O4/ZIF-8 composite as an effective and recyclable adsorbent for phenol adsorption from wastewater

Separation and Purification Technology, Год журнала: 2022, Номер 294, С. 121169 - 121169

Опубликована: Апрель 28, 2022

Язык: Английский

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Recent Progress in MOF‐Derived Porous Materials as Electrodes for High‐Performance Lithium‐Ion Batteries

Advanced Functional Materials, Год журнала: 2023, Номер 33(42)

Опубликована: Июнь 20, 2023

Abstract In recent years, metal‐organic frameworks, especially MOF‐based derivatives, have been regarded as one of the best candidate electrode materials for next generation advanced materials, due to high porosity, large surface area, modifiable functional groups well controllable chemical composition. This review presents corresponding synthesis methods, structural design, and electrochemical performance MOF‐derived including metal oxides, sulfides, phosphides, carbon in high‐performance lithium‐ion batteries. Subsequently, problems that exist current application derivatives electrodes batteries are discussed along with possible feasible solutions. At last, some reasonable pathways strategies design MOF also suggested.

Язык: Английский

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Critical roles of metal–organic frameworks in improving the Zn anode in aqueous zinc-ion batteries

Chemical Engineering Journal, Год журнала: 2023, Номер 457, С. 141334 - 141334

Опубликована: Янв. 5, 2023

Язык: Английский

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Bifunctional Interphase with Target‐Distributed Desolvation Sites and Directionally Depositional Ion Flux for Sustainable Zinc Anode

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(25)

Опубликована: Апрель 18, 2023

Aqueous zinc batteries (AZBs) feature high safety and low cost, but intricate anodic side reactions dendrite growth severely restrict their commercialization. Herein, ethylenediaminetetraacetic acid (EDTA) grafted metal organic framework (MOF-E) is proposed as a dually-functional interphase for sustainable Zn anode. Specifically, the target-distributed EDTA serves an ion-trapped tentacle to accelerate desolvation ionic transport by powerful chemical coordination, while MOFs offer suitable channels induce oriented deposition. As result, MOF-E fundamentally suppresses guides horizontally arranged deposition with (002) preferred orientations. The Zn|MOF-E@Cu cell exhibits markedly improved Coulombic efficiency of 99.7 % over 2500 cycles, MOF-E@Zn|KVOH (KV12 O30-y ⋅ nH2 O) yields steady circulation 5000 [email protected] at 8 A g-1 .

Язык: Английский

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Robust nitrogen/selenium engineered MXene/ZnSe hierarchical multifunctional interfaces for dendrite-free zinc-metal batteries

Energy storage materials, Год журнала: 2022, Номер 49, С. 122 - 134

Опубликована: Март 30, 2022

Язык: Английский

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