Crystallization kinetics and phase transformations in aluminium ion-implanted electrospun TiO2 nanofibers
Electrospun TiO2 nanofibers were implanted with aluminum ions, and their crystallization kinetics, phase transformations, and activation energies were investigated from 25 to 900 °C by in situ high-temperature synchrotron radiation diffraction. The amorphous non-implanted and Al ion-implanted TiO2 n...
| Main Authors: | , |
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| Format: | Journal Article |
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Springer
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/4094 |
| _version_ | 1848744418451914752 |
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| author | Albetran, H. Low, It Meng |
| author_facet | Albetran, H. Low, It Meng |
| author_sort | Albetran, H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Electrospun TiO2 nanofibers were implanted with aluminum ions, and their crystallization kinetics, phase transformations, and activation energies were investigated from 25 to 900 °C by in situ high-temperature synchrotron radiation diffraction. The amorphous non-implanted and Al ion-implanted TiO2 nanofibers transformed to crystalline anatase at 600 °C and to rutile at 700 °C. The TiO2 phase transformation of the Al ion-implanted material was accelerated relative to non-implanted sample. Compared with non-implanted nanofibers, the Al-implanted materials yielded a decreased activation energies from 69(17) to 29(2) kJ/mol for amorphous-to-anatase transformation and from 112(15) to 129(5) kJ/mol for anatase-to-rutile transformation. A substitution of smaller Al ions for Ti in the TiO2 crystal structure results in accelerated titania phase transformation and a concomitant reduction in the activation energies. |
| first_indexed | 2025-11-14T06:01:09Z |
| format | Journal Article |
| id | curtin-20.500.11937-4094 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:01:09Z |
| publishDate | 2016 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-40942017-09-13T14:33:01Z Crystallization kinetics and phase transformations in aluminium ion-implanted electrospun TiO2 nanofibers Albetran, H. Low, It Meng Electrospun TiO2 nanofibers were implanted with aluminum ions, and their crystallization kinetics, phase transformations, and activation energies were investigated from 25 to 900 °C by in situ high-temperature synchrotron radiation diffraction. The amorphous non-implanted and Al ion-implanted TiO2 nanofibers transformed to crystalline anatase at 600 °C and to rutile at 700 °C. The TiO2 phase transformation of the Al ion-implanted material was accelerated relative to non-implanted sample. Compared with non-implanted nanofibers, the Al-implanted materials yielded a decreased activation energies from 69(17) to 29(2) kJ/mol for amorphous-to-anatase transformation and from 112(15) to 129(5) kJ/mol for anatase-to-rutile transformation. A substitution of smaller Al ions for Ti in the TiO2 crystal structure results in accelerated titania phase transformation and a concomitant reduction in the activation energies. 2016 Journal Article http://hdl.handle.net/20.500.11937/4094 10.1007/s00339-016-0568-8 Springer restricted |
| spellingShingle | Albetran, H. Low, It Meng Crystallization kinetics and phase transformations in aluminium ion-implanted electrospun TiO2 nanofibers |
| title | Crystallization kinetics and phase transformations in aluminium ion-implanted electrospun TiO2 nanofibers |
| title_full | Crystallization kinetics and phase transformations in aluminium ion-implanted electrospun TiO2 nanofibers |
| title_fullStr | Crystallization kinetics and phase transformations in aluminium ion-implanted electrospun TiO2 nanofibers |
| title_full_unstemmed | Crystallization kinetics and phase transformations in aluminium ion-implanted electrospun TiO2 nanofibers |
| title_short | Crystallization kinetics and phase transformations in aluminium ion-implanted electrospun TiO2 nanofibers |
| title_sort | crystallization kinetics and phase transformations in aluminium ion-implanted electrospun tio2 nanofibers |
| url | http://hdl.handle.net/20.500.11937/4094 |