Synthesis and characterization of polyaniline gadolinium phosphate as a neutron absorber

The hexagonal and monoclinic GdPO4 doped were successfully synthesized via a hydrothermal method by reacting high purity dissolved salts (gadolinium nitrates or chlorides) with phosphoric acid in the presence of ethylene glycol (Eg) and citric acid. The properties of the GdPO4 nanocrystals were characterized by XRD, SEM and UVeVis spectroscopy. The size of the nanoparticles could be fine tuned from 270 to 10 nm by varying the amount of ethylene glycol, which acted as a chelating agent to control the size of the nanoparticles. The nanocomposites have been synthesized from in-situ polymerization of aniline in presence different weight ratio of GdPO4 and amunium peroxidisulphat APS as initiator. GdPO4- Polyaniline nanocomposite was examined for thermal neutron as absorber. The results show that GdPO4 and GdPO4- Polyaniline an excellent candidate for a chemically stable, water-insoluble neutron absorber for inclusion in spent nuclear fuel canisters

کلیدواژه ها:

XRD ، Gadolinium phosphate ، neutron absorber ، SEM ، chelating