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Nano Research 2021, 14(3): 715-719 https://doi.org/10.1007/s12274-020-3103-3
Research Article | Issue | Published: 01 March 2021

Single crystalline CeO2 nanotubes

Show Author's Information Fangxian Cao1,  Mingkai Zhang1,  Kaili Yang1,  Zhimin Tian1,  Jing Li2,  Yongquan Qu1,3( )
Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
Keywords:
CeO2 nanorod, hydrothemal transformation, CeO2 nanotube, etching-dissolution-deposition mechanism, haloperoxidase-like activity
Topics:
Cerium oxideCrystal symmetryEtchingNanorodsNanotubes
Cite this article:
Cao F, Zhang M, Yang K, et al. Single crystalline CeO2 nanotubes. Nano Research, 2021, 14(3): 715-719. https://doi.org/10.1007/s12274-020-3103-3
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Abstract Electronic supplementary material About this article

Here, we report a facile synthetic methodology to prepare uniform single crystalline CeO2 nanotubes through a hydrothermal transformation of CeO2 nanorods in aqueous Ce(NO3)3 solution. A chemically driven etching-dissolution-deposition mechanism is proposed, involving the surface Ce3+ hydrolysis and dissolution at tips of nanorods and subsequent redeposition and crystallization on the outer sides of nanorods. Compared to CeO2 nanorods, CeO2 nanotubes exhibited the richer structural defects, higher reducibility and larger surface area, leading to a higher haloperoxidase-like activity.

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Acknowledgements

Publication history

Received: 05 August 2020
Revised: 07 September 2020
Accepted: 08 September 2020
Published: 01 March 2021
Issue date: March 2021

Copyright

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature

Acknowledgements

We acknowledge the financial support from the National Natural Science Foundation of China (No. 21872109). We also thank Miss Liu and Mr. Zhou at the Instrument Analysis Center of Xi’an Jiaotong University for their assistance with XPS and ICP-MS measurements.

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