Phase development in La2O3 doped Al2O3:TiO2 ceramic membranes
The phase development of sol derived diphasic Al2O3:TiO2 membranes doped with La2O3 is described together with their pore structure and microstructure. These nanostructrual membranes have been characterised using 27Al MAS-NMR, TEM, BET, XRD and thermal analysis in an attempt to derive a comprehensiv...
Published in: | Journal of the European Ceramic Society |
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Elsevier BV
1999
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2-s2.0-0032696352 Stefan Björkert U.; Mayappan R.; Holland D.; Lewis M.H. Phase development in La2O3 doped Al2O3:TiO2 ceramic membranes 1999 Journal of the European Ceramic Society 19 10 10.1016/S0955-2219(99)00004-7 https://www.scopus.com/inward/record.uri?eid=2-s2.0-0032696352&doi=10.1016%2fS0955-2219%2899%2900004-7&partnerID=40&md5=523e61a69519a9579d743d7753e7f4f0 The phase development of sol derived diphasic Al2O3:TiO2 membranes doped with La2O3 is described together with their pore structure and microstructure. These nanostructrual membranes have been characterised using 27Al MAS-NMR, TEM, BET, XRD and thermal analysis in an attempt to derive a comprehensive description. The membrane materials have been subjected to heat treatments ranging from 275°C to 1200°C in air. Doping the diphasic membrane has been shown to increase the transformation temperature of the low temperature phases (γ-alumina and anatase) by as much as 200°C. There is indication that La2O3 doping also retards the reorganisation of Al in the γ-alumina phase preventing it from forming other intermediate aluminas. Elsevier BV 09552219 English Article |
author |
Stefan Björkert U.; Mayappan R.; Holland D.; Lewis M.H. |
spellingShingle |
Stefan Björkert U.; Mayappan R.; Holland D.; Lewis M.H. Phase development in La2O3 doped Al2O3:TiO2 ceramic membranes |
author_facet |
Stefan Björkert U.; Mayappan R.; Holland D.; Lewis M.H. |
author_sort |
Stefan Björkert U.; Mayappan R.; Holland D.; Lewis M.H. |
title |
Phase development in La2O3 doped Al2O3:TiO2 ceramic membranes |
title_short |
Phase development in La2O3 doped Al2O3:TiO2 ceramic membranes |
title_full |
Phase development in La2O3 doped Al2O3:TiO2 ceramic membranes |
title_fullStr |
Phase development in La2O3 doped Al2O3:TiO2 ceramic membranes |
title_full_unstemmed |
Phase development in La2O3 doped Al2O3:TiO2 ceramic membranes |
title_sort |
Phase development in La2O3 doped Al2O3:TiO2 ceramic membranes |
publishDate |
1999 |
container_title |
Journal of the European Ceramic Society |
container_volume |
19 |
container_issue |
10 |
doi_str_mv |
10.1016/S0955-2219(99)00004-7 |
url |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-0032696352&doi=10.1016%2fS0955-2219%2899%2900004-7&partnerID=40&md5=523e61a69519a9579d743d7753e7f4f0 |
description |
The phase development of sol derived diphasic Al2O3:TiO2 membranes doped with La2O3 is described together with their pore structure and microstructure. These nanostructrual membranes have been characterised using 27Al MAS-NMR, TEM, BET, XRD and thermal analysis in an attempt to derive a comprehensive description. The membrane materials have been subjected to heat treatments ranging from 275°C to 1200°C in air. Doping the diphasic membrane has been shown to increase the transformation temperature of the low temperature phases (γ-alumina and anatase) by as much as 200°C. There is indication that La2O3 doping also retards the reorganisation of Al in the γ-alumina phase preventing it from forming other intermediate aluminas. |
publisher |
Elsevier BV |
issn |
09552219 |
language |
English |
format |
Article |
accesstype |
|
record_format |
scopus |
collection |
Scopus |
_version_ |
1814778510574616576 |