Lithium-sulfur batteries (LSBs) are regarded as promising next-generation batteries due to their high abundance and high theoretical energy density. However, the commercial application of LSBs is hindered by the shuttle effect of soluble lithium polysulfides (LiPSs). Hence, we synthesised B, N, P co-doped three-dimensional hierarchical porous carbon materials, uniformly dispersed with CoP nanoparticles, and utilized them as the coating material for the PE separator. The catalytic and adsorption capacity of the composite material was significantly enhanced by CoP. Both experimental and theoretical calculations show that the LiPS adsorption capacity of the composite material is significantly enhanced after the introduction of B atoms. As a result, the assembled LSBs with the CoP@BNPC/PE separator show excellent long-term stability (940.8 mA h g after 500 cycles at 1.0 C, and only a 0.026% decay rate per cycle) and superior rate performance (613.6 mA h g at 5.0 C). Our work further proves that a modified separator is an effective strategy to promote the commercialization of LSBs.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d3dt01132a | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
FeO/Ni nanoparticles anchored nitrogen-doped porous carbon derived from core-shell MOF for simultaneous electrochemical detection of dopamine and 5-hydroxytryptamine.
Talanta
January 2025
Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, 476000, PR China. Electronic address:
Pre-designed core-shell metal-organic frameworks (MOFs@MOFs) with customized functionalities can enhance the material properties compared to conventional single MOFs. The porous carbon composites derived from MOFs@MOFs also have excellent functionality due to the presence of multiple metal/metal oxide nanoparticles. This paper synthesized a novel MOFs@MOFs composite (MIL-101(Fe)@Ni-MOF) with a core-shell structure with MIL-101(Fe) as the core and Ni-MOF as the shell.
View Article and Find Full Text PDFCeF-Accelerated surface reconstruction of MoO nanosheets into coral-like CeF/MoO composites enhances the oxygen evolution reaction for efficient water splitting.
J Colloid Interface Sci
January 2025
College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. Electronic address:
Developing efficient and cost-effective rare earth element-based electrocatalysts for water splitting remains a significant challenge. To address this, interface engineering and charge modulation strategies were employed to create a three-dimensional coral-like CeF/MoO heterostructure electrocatalyst, grown in situ on the multistage porous channels of carbonized sugarcane fiber (CSF). Integrating abundant CeF/MoO heterostructure interfaces and numerous oxygen vacancy defects significantly enhanced the catalyst's active sites and molecular activation capabilities.
View Article and Find Full Text PDFMolecule self-assembly of hydrangea-shaped hollow O, Cl -codoped graphite-phase carbon nitride microspheres for efficient N-(1,3-dimethyl butyl)-N'-phenyl-p-phenylenediamine quinone photodegradation and bacteria disinfection.
J Colloid Interface Sci
January 2025
College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone, Hangzhou 310018, China. Electronic address:
6PPD-quinone (6PPD-Q) as a derivative of the rubber antioxidant N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD), is attracting intensive attention due to the significant hazard to ecosystems. However, the effective management of this type of contaminant has been scarcely reported. Hydrangea-like hollow O, Cl-codoped graphite-phase carbon nitride microspheres (HHCN), featuring open pores were readily prepared by molecular self-assembly and utilized to address 6PPD-Q in an aqueous system for the first time.
View Article and Find Full Text PDFTiSquantum dots composite carbon nanotubes aerogel with electromagnetic interference shielding effect.
Nanotechnology
January 2025
Institute of Nonlinear Optics, College of Science, JiuJiang University, Jiangxi 334000, People's Republic of China.
Titanium disulfide quantum dots (TiSQDs) has garnered significant research interest due to its distinctive electronic and optical properties. However, the effectiveness of TiSQDs in electromagnetic interference (EMI) shielding is influenced by various factors, including their size, morphology, monodispersity, tunable bandgap, Stokes shift and interfacial effects. In this study, we propose a systematic approach for the synthesis of TiSQDs with small size (3.
View Article and Find Full Text PDFCoupling Nitrate-to-Ammonia Conversion and Sulfion Oxidation Reaction Over Hierarchical Porous Spinel MFeO (M═Ni, Co, Fe, Mn) in Wastewater.
Small
January 2025
School of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi, 530004, China.
The construction of coupled electrolysis systems utilizing renewable energy sources for electrocatalytic nitrate reduction and sulfion oxidation reactions (NORR and SOR), is considered a promising approach for environmental remediation, ammonia production, and sulfur recovery. Here, a simple chemical dealloying method is reported to fabricate a hierarchical porous multi-metallic spinel MFeO (M═Ni, Co, Fe, Mn) dual-functional electrocatalysts consisting of Mn-doped porous NiFeO/CoFeO heterostructure networks and Ni/Co/Mn co-doped FeO nanosheet networks. The excellent NORR with high NH Faradaic efficiency of 95.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!