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Engineering of nanoscale defect patterns in CeO2 nanorods via ex situ and in situ annealing

Sakthivel, Tamil Selvan, Reid, David L., Bhatta, Umananda M., Möbus, Günter, Sayle, Dean C., Seal, Sudipta (2015) Engineering of nanoscale defect patterns in CeO2 nanorods via ex situ and in situ annealing. Nanoscale, 7 (12). pp. 5169-5177. ISSN 2040-3364. E-ISSN 2040-3372. (doi:10.1039/C4NR07308H) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://doi.org/10.1039/C4NR07308H

Abstract

Single-crystalline ceria nanorods were fabricated using a hydrothermal process and annealed at 325 °C–800 °C. As-synthesized CeO2 nanorods contain a high concentration of defects, such as oxygen vacancies and high lattice strains. Annealing resulted in an improved lattice crystalline quality along with the evolution of novel cavity-shaped defects in the nanorods with polyhedral morphologies and bound by e.g. {111} and {100} (internal) surfaces, confirmed for both air (ex situ) and vacuum (in situ) heating. We postulate that the cavities evolve via agglomeration of vacancies within the as-synthesized nanorods.

Item Type: Article
DOI/Identification number: 10.1039/C4NR07308H
Subjects: Q Science > QD Chemistry > QD478 Solid State Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Dean Sayle
Date Deposited: 29 Mar 2016 14:51 UTC
Last Modified: 29 May 2019 17:09 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/54705 (The current URI for this page, for reference purposes)
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