Related Experiment Video
Updated: Jan 21, 2026

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
Published on: August 17, 2017
Revealing Insights into LiFePO4 Nanocrystals with Magnetic Order at Room Temperature Resulting in Trapping of Li Ions
Jiangtao Hu1, Hua Zeng1, Xin Chen1
1School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, China.
Abstract:
A systematic study on the structures, magnetic properties, and electrochemical performance of LiFePO4 was carried out. Interestingly, it was found that the magnetic phase transition temperature is around 295 K in LiFePO4 (x ≤ 0.12) nanocrystals, which is higher than that of LiFePO4 (TN = 51(1) K) and FePO4 (TN = 114(1) K) phases. The origin of magnetic order around room temperature (RT) in LiFePO4 (x ≤ 0.12) is proposed to be due to both Fe2+-Fe3+ superexchange and the broken local symmetries induced by Fe2+-Li+ antisite defects. Ab initio calculations were adopted to calculate the total energy change of the ferromagnetic state and antiferromagnetic state (ΔE) to qualitatively estimate TN and proved the existence of the magnetic order around room temperature. Because of the strong Lorentz force in RT magnetic domains, Li ions will be trapped and form sub-10 nm solid solution domains of Li0+δFePO4, which have a direct relationship with electrochemical performance during (de)lithiation procedures.
More Related Videos
13:51Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
Published on: November 10, 2017
09:24Standardized Identification of Compound Structure in Tibetan Medicine Using Ion Trap Mass Spectrometry and Multiple-Stage Fragmentation Analysis
Published on: March 17, 2023
Related Concept Videos
Social Traps
Common Ion Effect
Precipitation of Ions
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
Ion Channels
Ion channels are specialized integral membrane proteins on the plasma membrane that allow...
Formation of Complex Ions
Ions and Ionic Charges