An improved sol-gel template synthetic route to large-scale CeO{sub 2} nanowires

Journal Article · Tue Jun 08 00:00:00 EDT 2004 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2004.03.006· OSTI ID:20888075

Wu, G S; Xie, T; Yuan, X Y; Cheng, B C; Zhang, L D

Large-scale CeO{sub 2} nanowires were prepared successfully by an improved sol-gel process within the nanochannels of porous anodic alumina templates. In this process, cerium nitrate and urea were used as precursors, cerium nitrate acted as cerium ions source, and urea offered a basic medium through its hydrolysis. The as-synthesized CeO{sub 2} nanowires can be indexed as a fluorite-structure and the size of nanowires is uniform, with diameters of about 70 nm. The formation mechanism of nanowires is also discussed here. This method is more efficient than a traditional sol-gel template process for small pore diameter templates.

• OSTI ID: 20888075
• Journal Information: Materials Research Bulletin, Vol. 39, Issue 7-8; Other Information: DOI: 10.1016/j.materresbull.2004.03.006; PII: S0025540804000637; Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
CERIUM IONS
CERIUM NITRATES
CERIUM OXIDES
FLUORITE
HYDROLYSIS
POROUS MATERIALS
QUANTUM WIRES
SOL-GEL PROCESS
UREA
WIRES
X-RAY DIFFRACTION