Advanced electrolytes for high-performance aqueous zinc-ion batteries

Chemical Society Reviews, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

This review presents an comprehensive overview of various advanced aqueous electrolytes for zinc-ion batteries, including “water-in-salt” electrolytes, eutectic molecular crowding and hydrogel electrolytes.

Язык: Английский

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2D Nanochannel Interlayer Realizing High‐Performance Lithium–Sulfur Batteries

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

Abstract Commercialization of lithium–sulfur (Li–S) batteries is largely limited by polysulfide shuttling and sluggish kinetics. Herein, 2D nanochannel interlayer composed alternatively‐stacked porous silica nanosheets (PSN) Ti 3 C 2 T x ‐MXene are developed. The nanochannels with selective cation transport characteristics facilitate lithium ion rapid transport, while reject the translocation anions across separator. hydroxylated MXene shifts p ‐band center surface O on PSN closer to Fermi level, leading strong absorptive/catalytic effect for polysulfides thus fast transformation Together ion/electron bi‐conduction function PSN/MXene, Li–S deliver high initial capacity 1443 mAh g −1 at 0.1 C, low‐capacity decay rate 0.049% per cycle over 800 cycles excellent capability. At a sulfur loading 5.2 mg cm −2 , cells present higher areal specific than commercial batteries. pouch lean electrolyte (E/S = 3.9 µL ) yield 2‐Ah 100 mA, energy density cycling stability. This contribution opens up new avenues expanding application nanofluidics in electrochemical storage conversion.

Язык: Английский

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Defect Engineering Zr‐MOF‐Endowed Activity‐Dimension Dual‐Sieving Strategy for Anti‐acid Recognition of Real Phosphoryl Fluoride Nerve Agents

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 10, 2025

Abstract Defect‐engineering‐involved metal‐organic frameworks (MOFs) have been highly valued in many fields due to the enhanced porosity and abundant active sites, but how systematic modulation on deficiency influencing fluorescent sensing performance is still its infancy. Here, defect‐engineering of MOF‐525 used modulate exposure zirconium (Zr) clusters sieving capability inner channels, enabling precise phosphoryl fluoride nerve agents with specific chemical activity molecular dimensions. Controllable defects transformed localized emission porphyrin into ligand‐metal charge transferring (LMCT) gradual loss ligand molecules, which interrupted upon coordination agents, triggering a red turn‐on fluorescence. Thus, defective 60% effectively discriminates (e.g., sarin, soman) from similar substances tabun, venomous agent X) synergistic effect dimension. It exhibits sensitive (0.96 n m /3.8 ppb), rapid (<1 s) response toward target robust environmental interference acidic, humid common substances. This work enhances understanding MOFs correpsonding luminescent behavior, paving new avenue for strategy trace real vapor.

Язык: Английский

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Size Confinement Strategy Effect Enables Advanced Aqueous Zinc–Iodine Batteries

Advanced Energy Materials, Год журнала: 2024, Номер 14(44)

Опубликована: Авг. 6, 2024

Abstract Aqueous Zn–I 2 batteries have considerable potential owing to their environmental friendliness and high safety. However, the slow iodine conversion kinetics shuttle effect prevent practical applicability. In this study, a series of Zn‐MOF‐74 rods with controllable diameters 40–500 nm are facilely prepared, denoted as P1–P5. A size confinement strategy derived porous carbon hosts is proposed suppress formation undesirable species, such I 3 − 5 . Moreover, graphitization degree samples, including P2‐900, P2‐1000, P2‐1100, play critical on kinetics. The P2‐1000 sample possesses conductive skeleton abundant mesopores, which improve adsorption ability toward species. electrochemical tests in situ technology reveal mechanism iodine. As result, @P2‐1000 cathode exhibits superior discharge capacity 179.9 mA h g −1 at 100 exceptional long‐term cycle after 5000 cycles. Furthermore, soft flexible quasi‐solid‐state capable powering devices, promising exhibit tremendous adaptability realize electronic devices various scenarios.

Язык: Английский

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Sieving effect integration with asymmetrically coordinated catalytic chemistry Realize optimized polysulfide regulation in Lithium-Sulfur batteries

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161182 - 161182

Опубликована: Март 1, 2025

Язык: Английский

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Copper-Nickel MOF-Coated Electrospun Polyacrylonitrile Membranes for Li–S Batteries: Mitigating the Shuttle Effect and Enhancing Stability

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер unknown, С. 124772 - 124772

Опубликована: Окт. 1, 2024

Язык: Английский

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Bimetallic MOF-oriented battery materials: A new direction on cathode, anode, and separator

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 156303 - 156303

Опубликована: Сен. 1, 2024

Язык: Английский

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Engineering potassium-ion battery anodes with ultra-high structural stability and their potassium storage mechanism

Chemical Engineering Journal, Год журнала: 2025, Номер 505, С. 159921 - 159921

Опубликована: Янв. 25, 2025

Язык: Английский

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Bimetallic Metal–Organic Framework Catalyst to Accelerate Sulfur Conversion Kinetics for High-Performance Lithium–Sulfur Batteries

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 20, 2025

Lithium-sulfur (Li-S) batteries are highly attractive due to their exceptional theoretical energy density (2600 Wh kg-1) and low cost. However, practical deployment is limited by critical issues, including pronounced polysulfide shuttling slow reaction kinetics. In this study, we report the development of a novel Mo-Zn bimetallic ZIF-8 catalyst designed address these issues. Compared with pristine ZIF-8, Mo-ZIF-8 exhibited an effectively tuned surface area pore structure, significantly enhancing its ability trap polysulfides. Moreover, optimized architecture increased exposure active sites, strengthening chemical interactions between sulfur species thereby accelerating The incorporation Mo also induced redistribution electronic structure around Zn boosting intrinsic conductivity reducing electrochemical diffusion resistance during redox processes. synergistic design sites further enhanced adsorption lithium polysulfides catalytic conversion species. As result, Li-S Mo-ZIF-8-modified separators exhibit minimal capacity decay (0.04% per cycle) over 1000 cycles at 1C. Under high loading 5.8 mg cm-2, they achieve areal mAh retaining 5.0 cm-2 after 100 cycles. These findings highlight potential metal-organic framework (MOF) catalysts in advancing battery performance.

Язык: Английский

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MOF and related composites as selective functional separators and interlayers for Li-S batteries

Energy Materials, Год журнала: 2025, Номер 5(8)

Опубликована: Март 18, 2025

Lithium-sulfur (Li-S) batteries are one of the most promising technologies compared to lithium-ion-based ones, mainly due their outstanding high energy density (2,567 Wh/kg). Nonetheless, Li-S still face important drawbacks, namely shuttle effect caused by polysulfide dissolution into electrolyte and escape from cathode, leading active material loss ultimately anode passivation. Mitigating this is crucial boost at a large scale rational design separator or interlayer considered as an effective solution. Metal-Organic Frameworks related composites have been recently proposed candidates selectively capture polysulfides, tunable structures compositions ordered micro- meso-porosity which can sieve polysulfides through physical barriers chemical sorption catalyze conversion kinetics. Moreover, once introduced composite membranes functional separators interlayers, promotes easy inclusion in devices. This short review summarizes recent progress field, emphasizing different types interlayers integrating Frameworks, proposes new research directions optimize these systems.

Язык: Английский

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