Single crystalline CeO2 nanotubes

Here, we report a facile synthetic methodology to prepare uniform single crystalline CeO 2 nanotubes through a hydrothermal transformation of CeO 2 nanorods in aqueous Ce(NO 3 ) 3 solution. A chemically driven etching-dissolution-deposition mechanism is proposed, involving the surface Ce 3+ hydrolys...

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Bibliographic Details
Published inNano research Vol. 14; no. 3; pp. 715 - 719
Main Authors Cao, Fangxian, Zhang, Mingkai, Yang, Kaili, Tian, Zhimin, Li, Jing, Qu, Yongquan
Format Journal Article
LanguageEnglish
Published Beijing Tsinghua University Press 01.03.2021
Springer Nature B.V
Subjects
Aqueous solutions
Atomic/Molecular Structure and Spectra
Biomedicine
Biotechnology
Cerium nitrate
Cerium oxides
Chemical engineering
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Crystal defects
Crystal structure
Crystallinity
Crystallization
Dissolution
Etching
Haloperoxidase
Materials Science
Nanorods
Nanotechnology
Nanotubes
Phenols
Research Article
Transmission electron microscopy
etching-dissolution-deposition mechanism
hydrothemal transformation
CeO
haloperoxidase-like activity
nanotube
nanorod
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Summary:Here, we report a facile synthetic methodology to prepare uniform single crystalline CeO 2 nanotubes through a hydrothermal transformation of CeO 2 nanorods in aqueous Ce(NO 3 ) 3 solution. A chemically driven etching-dissolution-deposition mechanism is proposed, involving the surface Ce 3+ hydrolysis and dissolution at tips of nanorods and subsequent redeposition and crystallization on the outer sides of nanorods. Compared to CeO 2 nanorods, CeO 2 nanotubes exhibited the richer structural defects, higher reducibility and larger surface area, leading to a higher haloperoxidase-like activity.
ISSN:1998-0124
1998-0000
DOI:10.1007/s12274-020-3103-3