Revisiting the Nanofluid Behavior of Polysulfides in Carbon‐Based Interlayers: Longitudinal Osmotic Diffusion and Transverse Radiation‐Distribution Induced by Mn‐Based Catalysts DOI
Hangqi Yang, Zhaoyang Han,

Tianci Ma

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Abstract Carbon‐based interlayer as the secondary current collector is a typical approach for suppressing polysulfide shuttle effect in lithium‐sulfur batteries (LSBs). The effective operating lifespan determined by balance between local concentration and bearing capacity of interlayers. However, microscopic diffusion polysulfides within interlayers under multiple force fields remains unclear, particularly catalyst on multi‐scale behavior. Herein, first identification reported with coupling longitudinal osmotic transverse radioactive through revisiting Mn‐based catalysts (Mn‐X, X = N, O, or P). In addition to electric field forces during charging discharging, free sustain tension, leading radiation This adaptive adjustment optimizes distribution, mitigating risk deactivation caused excessive concentration. extent lateral positively correlated physicochemical adsorption interlayer. Specifically, stronger static demonstrates broader range. work re‐evaluates behavior interlayers, further guiding design high performance collector.

Language: Английский

DFT-driven design of efficient dual-atom electrocatalysts for lithium-sulfur batteries: Fe dimers supported on phthalocyanine DOI

Shaobo Jia,

Chou Wu,

Haiyan Zhu

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 688, P. 736 - 746

Published: Feb. 22, 2025

Language: Английский

Citations

0
High-Entropy-Induced Strong Dipole Moment for Accelerating Sulfur Reduction Kinetics Lithium-Sulfur Batteries across a Wide Range of Temperatures DOI
Chi Zhang,

Xinyue Wang,

Qi Jin

et al.

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104147 - 104147

Published: Feb. 1, 2025

Language: Английский

Citations

0
Oriented Assembly of 2D Metal‐Pyridylporphyrinic Framework to Regulate the Redox Kinetics in Li−S Batteries DOI Open Access
Yan Zhao, Zhongxia Shang,

Muti Feng

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

Abstract Developing the highly efficient catalysts is a great challenge for accelerating redox reactions in Li−S batteries. Inspired by single‐atom and metalloproteins, it makes full use of advantages metal–organic frameworks (MOFs) as electrocatalysts. Herein, series 2D metal‐bonded metalloporphyrin MOFs are prepared with 5,10,15,20‐tetrakis(4‐pyridyl) cobalt porphyrin (CoTPyP) building blocks transition metals (M═Mn, Fe, Co, Ni, Cu) nodes, respectively. The crystalline structures bimetallic confirmed UV–vis spectra X‐ray diffraction analyses. According to DFT calculation, peripheral metal nodes optimize electronic state Co core. Especially, CoTPyP‐Mn facilitates cleavage S−S bond from both ends promotes their conversion kinetics through Co−S Li−N bonds. cells show initial specific capacity 1339 mA h g −1 at 0.2 C. decay rate only 0.0442% per cycle after 1000 cycles 2 This work achieves rational control central d electron regulation enriches application

Language: Английский

Citations

0
A Bifunctional Fibrous Scaffold Implanted with Amorphous Co2P as both Cathodic and Anodic Stabilizer for High‐Performance Li─S Batteries DOI Creative Commons

Gang Zhao,

Tianran Yan,

Lei Wang

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

The shuttling of lithium polysulfides (LiPSs) and the formation dendrites have substantially impeded practical application lithium-sulfur (Li─S) batteries. To simultaneously solve these issues, a porous carbon fibrous scaffold embedded with amorphous Co2P (A─Co2P) is designed as both cathodic anodic stabilizer to construct high-rate long-life Li─S meticulously self-supporting membrane an integrated network structure offers superior conductivity copious spaces for uniform Li2S precipitation in cathode Li deposition anode. Moreover, incorporated A─Co2P provides abundant unsaturated sites, which can not only facilitate exposure active sites but also modulate electronic configuration enhanced LiPSs adsorption catalysis capability. Concurrently, presence lithiophilic reinforces stability anode suppressed dendrites. constructed full batteries deliver high areal capacity 6.6 mAh cm-2 sulfur loading 8.5 mg low decay rate 0.047% per cycle after 800 cycles. This work simple yet effective strategy by addressing dendrite growth.

Language: Английский

Citations

0
Coordination Anions Dimensionality-Engineered Dual-Atom Catalysts for Enhanced Fenton-Like Reactions: 3D Coordination Induced Spin-State Transition DOI
Yanling Chen, Han Zhang, Yao Li

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 4, 2025

Dual-atom catalysts (DACs) have shown significant application potential in Fenton-like reactions. However, effectively modulating their electronic structure and fully understanding the mechanisms driving high catalytic activity remain challenging. Herein, we propose a coordination anions dimensionality engineering strategy to synthesize biomass-derived dual-atom FeCo-N4O1C catalysts, which Fe Co atoms are bridged by two-dimensional planar N three-dimensional (3D) axial O atom. Experimental data theoretical calculations reveal that 3D of induces spin state undergo transition from low an intermediate compared with single-atom Fe-N4O1C, resulting moderate adsorption desorption intermediates, thus reducing energy barriers for generating more singlet oxygen high-valent cobalt-oxo species during peroxymonosulfate activation. The electron transfer neighboring through can prevent poisoning active species. Benefiting synergistic effects multiple sites, catalyst-dose normalized reaction rate constant reaches 14.5 L min-1 g-1 under concentrations─an improvement 1 ∼ 2 orders magnitude over most reported catalysts. practical applicability is demonstrated nearly 100% pollutant removal 7 days continuous operation membrane filtration system. This study provides deep insights into relationship between performance spin-state regulation DACs, introduces promising approach large-scale synthesis low-cost, highly efficient DACs

Language: Английский

Citations

0
Orbital hybridizations in single-atom catalysts for electrocatalysis DOI
Luoluo Qi, Jingqi Guan

Science Bulletin, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0
Revisiting the Nanofluid Behavior of Polysulfides in Carbon‐Based Interlayers: Longitudinal Osmotic Diffusion and Transverse Radiation‐Distribution Induced by Mn‐Based Catalysts DOI
Hangqi Yang, Zhaoyang Han,

Tianci Ma

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Abstract Carbon‐based interlayer as the secondary current collector is a typical approach for suppressing polysulfide shuttle effect in lithium‐sulfur batteries (LSBs). The effective operating lifespan determined by balance between local concentration and bearing capacity of interlayers. However, microscopic diffusion polysulfides within interlayers under multiple force fields remains unclear, particularly catalyst on multi‐scale behavior. Herein, first identification reported with coupling longitudinal osmotic transverse radioactive through revisiting Mn‐based catalysts (Mn‐X, X = N, O, or P). In addition to electric field forces during charging discharging, free sustain tension, leading radiation This adaptive adjustment optimizes distribution, mitigating risk deactivation caused excessive concentration. extent lateral positively correlated physicochemical adsorption interlayer. Specifically, stronger static demonstrates broader range. work re‐evaluates behavior interlayers, further guiding design high performance collector.

Language: Английский

Citations

0