Thermal behavior of LaPO4·nH2O and NdPO4·nH2O nanopowders
- 98 Downloads
Thermal behavior of LaPO4·nH2O and NdPO4·nH2O nanopowders from room temperature to 973 K was investigated by DSC, TA/DTG, ESM, and X-ray study. Mass loss due to the release of adsorbed and hydrate water was found in the range from 323 to 623 K. Phase transitions from hexagonal structure nanopowders to monoclinic one for bulk specimens were found above 873 K.
KeywordsThermal behavior Nanopowders Lanthanide orthophosphates
- 5.Mayo MJ, Suresh A, Porter WD. Thermodynamics for nanosystems: grain and particle-size dependent phase diagrams. Rev Adv Mater Sci. 2003;5:100–9.Google Scholar
- 9.Jaulmes S. Affinement de la structure de LaPO4. Bull Soc Fr Miner Cristallogr. 1972;95:42–6.Google Scholar
- 11.Bondar’ IA, Domansky AI, Mezentseva LP, Degen MG, Kalinina NE. Physicochemical investigation of rare-earth orthophosphates. Rus J Inorg Chem. 1976;21:2045–50.Google Scholar