CeO 2 spherical crystallites aggregated by small CeO 2 nanoparticles in the diameter range of 5−10 nm were successfully fabricated through a facile surfactant-assisted hydrothermal method. PVP (poly(vinylpyrrolidone)) was applied as surfactant to facilitate the oriented aggregation of small CeO 2 nanoparticles into spherical crystallites. The size of as-obtained CeO 2 spherical crystallites could be deliberately controlled in the range 100−800 nm by varying synthetic parameters such as the molar ratio of PVP (repeating units) to Ce(NO 3 ) 3 ·6H 2 O and the concentration of Ce(NO 3 ) 3 ·6H 2 O solution. The formation mechanism was briefly discussed and the electrochemical properties of as-synthesized CeO 2 spherical crystallites were studied by galvanostatic methods. The electrochemical test results show that the as-obtained CeO 2 spherical crystallites have promising electrochemical properties that may enable them to be applied as an anode material in lithium ion batteries.
No takes yet. Share an insight, caveat, or question.
Zhou et al. (2007) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: