Hard carbons as a kind of nongraphitized amorphous carbon have been recognized as potential anode materials for sodium-ion batteries (SIBs) due to its large interlayer spacing. However, the issues in terms of onerous synthetic procedure and elusive working mechanism remains critical bottlenecks for practical implement. Herein, we report a facile production of tubular hard carbon through direct carbonization of platanus flosses (FHC) for the first time. Through optimizing the pyrolysis temperatures, the FHC obtained at 1300 °C possesses a key balance between the interlayer spacing and surface area, which can maintain the substantial active sites as well as reduce the irreversible sodium storage. Accordingly, it can deliver a reversible capacity of 324.6 mAh g with a high initial Coulombic efficiency of 80%, superb rate property of 107.2 mAh g at 2 A g, and long operating stability over 1000 cycles. Furthermore, the Raman spectroscopic studies certify that sodium ions are stored in FHC following the "adsorption-insertion" mechanism. Our study could provide a promising route for large-scale development of the biomass-derived carbonaceous anodes for high-performance SIBs.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acsami.2c19362 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
2D Porous TiC MXene as Anode Material for Sodium-Ion Batteries with Excellent Reaction Kinetics.
Molecules
February 2025
Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, School of Mechanical and Electronic Engineering, Suzhou University, Suzhou 234000, China.
Sodium-ion batteries (SIBs) are a promising electrochemical energy storage system but face great challenges in developing fast-charging anodes. MXene-based composites are a new class of two-dimensional materials that are expected to be widely used in SIB energy storage due to their excellent electrical conductivity and stable structure. However, MXenes tend to experience interlayer stacking during preparation, which can result in poor electrochemical performance and a lower actual capacity compared to the theoretical value.
View Article and Find Full Text PDFα-Zirconium Phosphate Hybrid Intercalated by Carbon Dots with High Anticorrosion Efficiency for Waterborne Epoxy Resin Composite Coating.
ACS Appl Mater Interfaces
March 2025
College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, Fujian 361005, China.
In recent years, waterborne epoxy resin (WE) has garnered attention due to its lower environmental pollution compared to solvent-based coatings. However, their poor barrier properties severely limit their practical applications. In order to enhance the corrosion resistance of water-based epoxy resin coating, a highly efficient strategy of combining the barrier effect of lamellar structured zirconium phosphate (α-ZrP) and the inhibitor effect of special carbon dots by the intercalation method was proposed in this work.
View Article and Find Full Text PDFDefect functionalized morphological, structural, and optical properties of MnS incorporated MoS heterostructure: Experimental and theoretical insight.
Heliyon
February 2025
Department of Physics, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh.
The low-cost hydrothermal method has been successfully applied to synthesize MnS-incorporated MoS nanoflowers (MoS/MnS). The FE-SEM, TEM, XRD, Raman, UV-VIS, and density functional theory (DFT) were used to investigate the surface morphology, structural property, optical property, and simulated optical and dielectric properties. FE-SEM and TEM images reveal the 3D flower-like structure of MoS and the flower-like structure of the nanocomposite.
View Article and Find Full Text PDFFabrication of pitch-derived hard carbon bromination-assisted pyrolysis strategy for sodium-ion batteries.
Nanoscale
March 2025
School of Chemical Engineering and Technology, Xi'an Jiaotong University, Shaanxi, Xi'an, 710049, China.
Pitch-derived hard carbon materials are considered one of the most promising anodes for sodium-ion batteries (SIBs) due to their low cost and high carbon yields. However, they are largely limited by inferior specific capacity and rate capability, resulting from the easy graphitization of the pitch precursor during high-temperature carbonization. Herein, a simple bromination modification coupled with a pyrolysis strategy was proposed to fabricate pitch-derived hard carbon anodes (BHC-), aiming to engineer their microstructure and optimize the electrochemical performance of SIBs.
View Article and Find Full Text PDFValence Engineering via Polyoxometalate-Induced on Vanadium Centers for Efficient Aqueous Zinc-Ion Batteries.
Angew Chem Int Ed Engl
February 2025
School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China.
Layered vanadium-based compounds have attracted attention as cathode materials for aqueous zinc-ion batteries (AZIBs) because of their low cost, high theoretical specific capacity, and abundant vanadium valence states. However, the slow migration of Zn ions and their poor cycling stability hinder their practical application in AZIBs. Herein, using a one-pot solvothermal method, the polyoxometalates (POMs) were inserted into the aluminum vanadate interlayer spacing, and a series of novel 3D nanoflower cathode materials (HAVO-MMo-X) were successfully fabricated.
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!