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CeO2 Spherical Crystallites: Synthesis, Formation Mechanism, Size Control, and Electrochemical Property Study

Zhou, Fu, Zhao, Xuemei, Xu, Hai, Yuan, Cunguang·2007·The Journal of Physical Chemistry C

Abstract

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.

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Authors
Zhou, F., Zhao, X., Xu, H., & Yuan, C.
Venue
The Journal of Physical Chemistry C
Published
2007-01-09
Volume
111
Issue
4
Pages
1651-1657
ISSN
  • 1932-7447 (ISSN-L)
  • 1932-7455
OpenAlex
W2003414003
Cited by
192
References
0
FWCI
11.03
Type
journal article
Language
en
Open access
closed

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