A Review of the Application of Metal-Based Heterostructures in Lithium–Sulfur Batteries

Catalysts, Год журнала: 2025, Номер 15(2), С. 106 - 106

Опубликована: Янв. 22, 2025

Lithium–sulfur (Li-S) batteries are recognized as a promising alternative in the energy storage domain due to their high theoretical density, environmental friendliness, and cost-effectiveness. However, challenges such polysulfide dissolution, low conductivity of sulfur, limited cycling stability hinder widespread application. To address these issues, incorporation heterostructured metallic substrates into Li-S has emerged pivotal strategy, enhancing electrochemical performance by facilitating better adsorption catalysis. This review delineates modifications made cathode separator through heterostructures. We categorize heterostructures three classifications: single metals metal compounds, MXene materials paired with formed entirely compounds. Each category is systematically examined for its contributions behavior efficiency batteries. The evaluated both contexts, revealing significant improvements lithium-ion retention. Our findings suggest that strategic design can not only mitigate inherent limitations but also pave way development high-performance systems.

Язык: Английский

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Unraveling the Structural Evolution of Cobalt Sulfides in Electrocatalytic NO₃RR: the Inescapable Influence of Cl^–

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 6, 2025

Electrochemical nitrate reduction (NO3RR) to ammonia is an attractive approach for mitigating NO3- pollution and producing valuable NH3. Cobalt-sulfur compounds are widely considered be potential electrocatalysts NO3RR. However, there still a lack of research on the probable structural evolution, long-term stability, reactive sites cobalt-based sulfides during catalysis. Herein, we have employed three cobalt (CoSx, where x = 8/9, 2, 1.097) with different sulfur contents as catalysts electrocatalytic NO3RR under alkaline conditions. At -0.8 V vs RHE, all these CoSx show promising performances that Faradaic efficiencies >80% high yield >1780 mmol h-1 gcat-1 NH3 production achieved. Through combination X-ray diffraction (XRD), transmission electron microscopy (TEM), other characterizations, it revealed easily converted into hydroxide This phenomenon seemingly contradictory thermodynamic prediction that, according Pourbaix diagram, should stable even catalytic condition. We suggest this due presence Cl- ions in electrolyte promote transformation toward Co(OH)2. Chloride commonly found both industrial settings natural water bodies challenging remove. The evolved Co(OH)2 species proposed responsible catalyzing NO3RR, especially process. study highlights inevitable evolution current conditions, offering theoretical guidance judicious selection design future catalysts.

Язык: Английский

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ZIF-67anchored on sulfur-doped carbon nitride as oxygen evolution electrocatalysts

Diamond and Related Materials, Год журнала: 2025, Номер unknown, С. 112193 - 112193

Опубликована: Март 1, 2025

Язык: Английский

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Interface control in TiO2/BaTiO3 ferroelectric heterostructures: A bidirectional catalytic pathway toward high-performance Li-S batteries

Journal of Colloid and Interface Science, Год журнала: 2025, Номер unknown, С. 137467 - 137467

Опубликована: Март 1, 2025

Язык: Английский

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A Keggin-type polyoxometalate/COF thin separator for improving the performance of lithium–sulfur batteries

Journal of Materials Chemistry A, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

POMs/DTQ-COF composites were prepared by post-synthesis strategy and applied to the improvement of lithium–sulfur battery separator. The electrochemical performance was effectively improved.

Язык: Английский

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Eutectoid Reaction Enabling In Situ Construction of Titanium Based Ternary Heterostructures for Boosted Lithium Polysulfide Conversion

Small Methods, Год журнала: 2025, Номер unknown

Опубликована: Апрель 29, 2025

Abstract Typical shuttle effect of lithium polysulfides (LiPSs) and slow kinetics redox reactions seriously hinder the potential application lithium–sulfur batteries (LSBs). Herein, a titanium based ternary accordion heterostructure (i.e., TiC‐TiN‐TiO 2 ) is first fabricated through an acid‐assisted eutectoid reaction Ti 3 CN MXene obtained via efficiently gas‐etching AlCN MAX. The in situ crystal reconstruction not only creates functional sur/interface configuration but generates built‐in electric field (BIEF) at interfaces, which induce interfacial charge redistribution accelerate electronic/ionic conductions whole heterostructures. Besides, well‐defined functions conductive TiC, adsorptive TiO , catalytic TiN enable efficient fixation conversion LiPSs. Accordingly, LSBs assembled with modified separators demonstrate remarkable reversible capacity 1185 mAh g −1 0.5 C, outstanding retention 778 after 500 cycles decay rate 0.078% per cycle. Moreover, excellent capability (838 5 C) superior cycling stability high sulfur loading (3.7 mg cm −2 low electrolyte/sulfur ratio (6.0 µL are also achieved. More significantly, solid solution MXenes it devised here provides innovative avenue to design hierarchical heterostructures for high‐performance beyond.

Язык: Английский

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Tailoring Iron hexadecafluorophthalocyanine/GO nanocomposite separators for polysulfide adsorption and enabling fast electrochemical kinetics of Li-S batteries

Journal of Alloys and Compounds, Год журнала: 2024, Номер unknown, С. 176687 - 176687

Опубликована: Сен. 1, 2024

Язык: Английский

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