AlP and SiP are promising alloy-type anode materials for lithium-ion batteries (LIBs), owing to their good conductivity, high storage capacity and appropriate working potential. However, they still suffer from rapid capacity decay due to the huge volume expansion and the resultant pulverization. Carbon modification can not only relieve volume changes but also provide a conducting matrix for the active material. Moreover, the charge transfer of the multi-phase composite can be accelerated owing to its electric field at the heterointerface. Hence, a bimetallic phosphide AlP/SiP@C composite was synthesized for the first time a facile and scalable high energy ball milling method and applied as an anode material for LIBs. Benefitting from the above combined advantages of the heterostructure and carbon layer protection, the AlP/SiP@C electrode delivered a high reversible capacity (1482 mA h g at the current density of 0.3 A g) and durable lifespan (516 mA h g after 4000 cycles at a current density of 3 A g), which are superior to those of the binary AlP@C and SiP@C composites.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d1cc06370g | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Cobalt phosphide nanoarrays on a borate-modified nickel foam substrate as an efficient dual-electrocatalyst for overall water splitting.
J Colloid Interface Sci
December 2024
School of Chemistry & Chemical Engineering, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, Nanning 530004, China. Electronic address:
Developing efficient non-noble metal dual-functional electrocatalysts for overall water splitting is essential for the production of green hydrogen. Given the significant advantages of self-supporting electrodes, regulating the growth of self-supporting nanoarrays on a conductive substrate is conducive to improving the electrocatalytic activity. In this work, aligned cobalt phosphide (CoP) nanowire arrays grown on borate-modified Ni foam substrate (CoP/R-NF) were utilized as a bifunctional electrocatalyst for both hydrogen evolution reactions (HER) and oxygen evolution reactions (OER) in alkaline solution.
View Article and Find Full Text PDFSynergistic interfacial electronic modulation of topotactically developed bimetallic CoNiP on NiS nanorods for enhanced alkaline hydrogen evolution reaction.
Nanoscale
November 2024
Nano-electrochemistry Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei City 106, Taiwan.
Designing hybrid transition metal phosphosulfide electrocatalysts is critical for the hydrogen evolution reaction (HER). We propose a novel approach by designing a hierarchical structure of cobalt phosphide (CoP) and nickel phosphide (NiP) nanoparticles topotactically developed on nickel sulfide (NiS) nanorods (CoNiP/NiS) a sulfuration-phosphorization strategy using conductive 3D nickel foam. Hierarchical heterostructured nanorods were achieved without the need for template removal steps or the assistance of surfactants.
View Article and Find Full Text PDFStress-Dispersed Nanoconstruction of CoMoP Anode: Improved Na-Storage Stability and Reversibility.
Nano Lett
October 2024
MOE Key Laboratory for UV Light-Emitting Materials and Technology, Department of Physics, Northeast Normal University, Changchun, 130024, China.
Metal phosphide anode materials encounter poor reversibility of the discharge product (metal and NaP) and large volume variation, resulting in low initial Coulombic efficiency (ICE) and severe capacity degradation. Herein, a bimetallic phosphide (CoMoP) with three-dimensional ordered porous (3DOP) nanoconstruction was fabricated, which presents a reduced Gibbs free energy change (Δ) of redox reaction between Co-Mo/NaP and CoMoP and improved conductivity compared to CoP and MoP. Additionally, the 3DOP architecture could disperse stress and reduce strain during cycling, thus improving structural stability of CoMoP.
View Article and Find Full Text PDFHighly Efficient Electrocatalytic Nitrate Reduction to Ammonia: Group VIII-Based Catalysts.
ACS Nano
October 2024
Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
Article Synopsis
- The buildup of nitrates poses significant health and environmental risks, prompting research into converting them into valuable ammonia using renewable energy through a process called electrochemical nitrate reduction reaction (e-NORR).
- Group VIII-based catalysts show promise for e-NORR due to their high efficiency, affordability, and effective electron transfer, with various forms like monatomic and bimetallic catalysts being explored.
- The review discusses methods to improve catalyst performance and the ammonia recovery process, while also examining the current state of research to facilitate large-scale nitrate reduction applications in industrial wastewater treatment.
Interfacial Regulation of Rice-Grain-like Iron-Nickel Phosphide Nanorods on Phosphorus-Doped Graphene Architectures as Bifunctional Electrocatalysts for Water Splitting.
Inorg Chem
October 2024
Institute of Innovation Materials and Energy, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China.
The design of bimetallic metal-organic frameworks (MOFs) with a hierarchical structure is important to improve the electrocatalytic performance of catalysts due to their synergistic effect on different metal ions. In this work, the catalyst comprises bimetallic iron-nickel MOF-derived FeNi phosphides, intricately integrated with phosphorus-doped reduced graphene oxide architectures (FeNiP-C/P-rGA) through the hydrothermal and phosphating treatments. The hierarchical architecture of the catalyst is beneficial for exposing active sites and facilitating electron transfer.
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!