St Andrews Research Repository

St Andrews University HomeSt Andrews University Library
View Item 
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  • Login
JavaScript is disabled for your browser. Some features of this site may not work without it.

Investigation of the hydrothermal crystallisation of the perovskite solid solution NaCe1-xLaxTi2O6 and its defect chemistry

Thumbnail
View/Open
harunsani2013jsolidstatechem117.pdf (840.6Kb)
Date
11/2013
Author
Harunsani, Mohammad H.
Woodward, David I.
Peel, Martin
Ashbrook, Sharon Elizabeth Marie
Walton, Richard I.
Keywords
Perovskite
Hydrothermal
XANES
NMR
Neutron diffraction
Free piezoelectric ceramics
Low-temperature
X-ray
Oxidation-state
Barium-titanate
Thin-films
LA1/2NA1/2TIO3 NANOCRYSTALS
Quantum paraelectricity
Raman-spectroscopy
BATIO3
QD Chemistry
Metadata
Show full item record
Abstract
Perovskites of nominal composition NaCe1−xLaxTi2O6 (0≤x≤1) crystallise directly under hydrothermal conditions at 240 °C. Raman spectroscopy shows distortion from the ideal cubic structure and Rietveld analysis of powder X-ray and neutron diffraction reveals that the materials represent a continuous series in rhombohedral space group R3̄c. Ce LIII-edge X-ray absorption near edge structure spectroscopy shows that while the majority of cerium is present as Ce3+ there is evidence for Ce4+. The paramagnetic Ce3+ affects the chemical shift and line width of 23Na MAS NMR spectra, which also show with no evidence for A-site ordering. 2H MAS NMR of samples prepared in D2O shows the inclusion of deuterium, which IR spectroscopy shows is most likely to be as D2O. The deuterium content is highest for the cerium-rich materials, consistent with oxidation of some cerium to Ce4+ to provide charge balance of A-site water.
Citation
Harunsani , M H , Woodward , D I , Peel , M , Ashbrook , S E M & Walton , R I 2013 , ' Investigation of the hydrothermal crystallisation of the perovskite solid solution NaCe 1-x La x Ti 2 O 6 and its defect chemistry ' , Journal of Solid State Chemistry , vol. 207 , pp. 117-125 . https://doi.org/10.1016/j.jssc.2013.09.015
Publication
Journal of Solid State Chemistry
Status
Peer reviewed
DOI
https://doi.org/10.1016/j.jssc.2013.09.015
ISSN
0022-4596
Type
Journal article
Rights
© 2013. Elsevier Inc. All rights reserved. This is the author’s version of a work that was accepted for publication in Journal of Solid State Chemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Solid State Chemistry, 203, November 2013 DOI 10.1016/j.jssc.2013.09.015
Description
MHH thanks the Ministry of Education, Brunei for award of a scholarship. EPSRC are thanked for a DTG studentship to MDP.
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/5245

Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

Advanced Search

Browse

All of RepositoryCommunities & CollectionsBy Issue DateNamesTitlesSubjectsClassificationTypeFunderThis CollectionBy Issue DateNamesTitlesSubjectsClassificationTypeFunder

My Account

Login

Open Access

To find out how you can benefit from open access to research, see our library web pages and Open Access blog. For open access help contact: openaccess@st-andrews.ac.uk.

How to submit research papers

The full text of research papers can be submitted to the repository via PURE, the University's research information system. For help see our guide: How to deposit in Pure.

Electronic thesis deposit

Help with deposit.

Repository help

For repository help contact: Digital-Repository@st-andrews.ac.uk.

Give Feedback

Cookie policy

This site may use cookies. Please see Terms and Conditions.

Usage statistics

COUNTER-compliant statistics on downloads from the repository are available from the IRUS-UK Service. Contact us for information.

© University of St Andrews Library

University of St Andrews is a charity registered in Scotland, No SC013532.

  • Facebook
  • Twitter