Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8014233 | Materials Letters | 2018 | 11 Pages |
Abstract
Synthesis of metal ions (Cd2+, Li+) doped CePO4 nanocrystals were achieved through a simple hydrothermal route at 150â¯Â°C using citric acid and poly-ethylene-glycol (PEG-6000). The results obtained reveal that the low percentage of (Cd2+, Li+) dopant affect the structure showing a weak decrease in the lattice parameters compared to the CePO4. The total electrical conductivity plots obtained from impedance spectra, between 300 and 450â¯Â°C, indicated that the activation energies for CePO4, Ce0.9Cd0.15PO4, Ce0.9Cd0.13Li0.04PO4 are 1.05, 0.99 and 0.72â¯eV, respectively, showing an increase of the total conductivity as Li-content increases. The conduction mechanism is described using correlated barrier hopping model. The partial substitution leads to the improvement capacity when increasing the Li-content from 65F·gâ1 for Ce0.9Cd0.15PO4 to 75F·gâ1 for Ce0.9Cd0.13Li0.04PO4.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Salah Kouass, Amor Fadhalaoui, Massoud Kahlaoui, Hassouna Dhaouadi, Fathi Touati,