Related Experiment Video
Updated: Jan 11, 2026

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
Coal-derived two-dimensional MNb2O6 (M = Mn, Fe, Co)/C hybrids with superior lithium storage performance
Yang Zhang1, Ziyun Ma1, Yanjun Cai1
1College of Chemistry and Chemical Engineering, Xinjiang Key Laboratory of Energy Storage and Photoelectrocatalytic Materials, Xinjiang Normal University, Urumqi, 830054, Xinjiang, China. zyangxy@163.com.
None:
Rational design of electrode materials with fast reaction kinetics, improved safety, and reversible ion (de)intercalation capability is crucial for advancing high-performance lithium-ion batteries (LIBs). In this study, two-dimensional (2D) MNb2O6 (M = Mn, Fe, Co)/C nanohybrids were synthesized by a molten-salt-assisted method using Heishan coal as both the carbon source and structural carrier. Owing to the favorable interfacial interaction between coal-based carbon and the compounds generated by the lower melting point of Fe(NO3)3 and Nb2O5, FeNb2O6/C (FeNO/C) nanosheets with a uniformly dispersed structure were obtained. These nanosheets exhibit excellent cycling stability of 632.1 mAh g-1 after 600 cycles at 0.4 A g-1, a competitive Li+ diffusion rate, reversible Li+ (de)intercalation capability, and robust structural integrity. Notably, the LiFePO4∥FeNO/C full battery also demonstrates favorable performance. Unlike FeNO/C, the tremella-like CoNb2O6/C (CoNO/C) exhibits enhanced electrochemical behavior through an amorphous phase transformation mechanism. Overall, the strong performances of these samples validate the rational design of 2D M-Nb-O/coal-based carbon hybrid nanostructures with superior structural stability and integrity, providing a valuable reference for the development of similar materials.
More Related Videos
07:55Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering
Published on: April 17, 2018
08:40Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Related Concept Videos
Network Covalent Solids
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
Valence Bond Theory
Batteries and Fuel Cells
Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
Hybridization of Atomic Orbitals I
Covalent Bonding and Lewis Structures