Title

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

Authors

Authors

T. S. Sakthivel; D. L. Reid; U. M. Bhatta; G. Mobus; D. C. Sayle;S. Seal

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Nanoscale

Keywords

CERIUM OXIDE NANOPARTICLES; CATALYTIC-OXIDATION; ORIENTED ATTACHMENT; OPTICAL-PROPERTIES; OXYGEN VACANCIES; DOPED CEO2; NANOSTRUCTURES; TEMPERATURE; NANOCRYSTALS; SIZE; Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials; Science, Multidisciplinary; Physics, Applied

Abstract

Single-crystalline ceria nanorods were fabricated using a hydrothermal process and annealed at 325 degrees C-800 degrees 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.

Journal Title

Nanoscale

Volume

7

Issue/Number

12

Publication Date

1-1-2015

Document Type

Article

DOI Link

http://dx.doi.org/10.1039/c4nr07308h

Language

English

First Page

5169

Last Page

5177

WOS Identifier

WOS:000351372400012

ISSN

2040-3364

Recommended Citation

"Engineering of nanoscale defect patterns in CeO2 nanorods via ex situ and in situ annealing" (2015). Faculty Bibliography 2010s. 6783.
https://stars.library.ucf.edu/facultybib2010/6783