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GdVO4 powders were synthesized by a sol–gel method using malic acid as a chelating agent, followed by calcinations at 300–700°C for 3h. The products characterized by FTIR, XRD, SEM and TEM, revealed that purity, crystallinity and particle sizes of tetragonal GdVO4 nanoparticles increased with increasing calcination temperatures. The stoichiometry of the GdVO4 powders was confirmed using EDS. The photocatalytic...
LiNiVO4 nano-crystallites were prepared by the polymerized complex method using Li2CO3, Ni(CH3COO)2·4H2O and NH4VO3 as starting reagents and malic acid as a complexing agent. With the subsequent calcination at 450 °C, the powder analyzed by XRD, FTIR, Raman, electron diffraction, SEM and TEM techniques was found to be inverse spinel LiNiVO4 with ∼20 nm in diameter. TGA shows continuous weight loss...
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