Effects of Nb doping on the TiO2 anatase-to-rutile phase transition

dc.contributor.author
Arbiol i Cobos, Jordi
dc.contributor.author
Cerdà Belmonte, Judith
dc.contributor.author
Dezanneau, Guilhem
dc.contributor.author
Cirera Hernández, Albert
dc.contributor.author
Peiró Martínez, Francisca
dc.contributor.author
Cornet i Calveras, Albert
dc.contributor.author
Morante i Lleonart, Joan Ramon
dc.date.issued
2012-05-03T07:46:49Z
dc.date.issued
2012-05-03T07:46:49Z
dc.date.issued
2002-07-15
dc.identifier
0021-8979
dc.identifier
https://hdl.handle.net/2445/24798
dc.identifier
500512
dc.description.abstract
We study the influence of Nb doping on the TiO2 anatase-to-rutile phase transition, using combined transmission electron microscopy, Raman spectroscopy, x-ray diffraction and selected area electron diffraction analysis. This approach enabled anatase-to-rutile phase transition hindering to be clearly observed for low Nb-doped TiO2 samples. Moreover, there was clear grain growth inhibition in the samples containing Nb. The use of high resolution transmission electron microscopy with our samples provides an innovative perspective compared with previous research on this issue. Our analysis shows that niobium is segregated from the anatase structure before and during the phase transformation, leading to the formation of NbO nanoclusters on the surface of the TiO2 rutile nanoparticles.
dc.format
9 p.
dc.format
application/pdf
dc.language
eng
dc.publisher
American Institute of Physics
dc.relation
Reproducció del document publicat a: http://dx.doi.org/10.1063/1.1487915
dc.relation
Journal of Applied Physics, 2002, vol. 92, num. 2, p. 853- 861
dc.relation
http://dx.doi.org/10.1063/1.1487915
dc.rights
(c) American Institute of Physics, 2002
dc.rights
info:eu-repo/semantics/openAccess
dc.source
Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)
dc.subject
Equacions d'estat
dc.subject
Ciència dels materials
dc.subject
Equations of state
dc.subject
Materials science
dc.title
Effects of Nb doping on the TiO2 anatase-to-rutile phase transition
dc.type
info:eu-repo/semantics/article
dc.type
info:eu-repo/semantics/publishedVersion


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