In-situ evolution of anodic TiO2 nanotubes to ammonium oxofluorotitanate mesocrystals and their conversion to mesocrystalline TiO2
3D ordered superstructures of mesocrystalline NH4TiOF3 and (NH4)2TiOF4 are synthesized via in-situ evolution from anodic TiO2 nanotube arrays grown on the Ti metal substrate under high current density. As revealed by X-ray diffraction, scanning electron microscopy and transmission electron microscop...
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oai:doaj.org-article:bad6c95f9c9647e9ae44ebdfc21ede6b2021-11-26T04:24:51ZIn-situ evolution of anodic TiO2 nanotubes to ammonium oxofluorotitanate mesocrystals and their conversion to mesocrystalline TiO21388-248110.1016/j.elecom.2021.107163https://doaj.org/article/bad6c95f9c9647e9ae44ebdfc21ede6b2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1388248121002472https://doaj.org/toc/1388-24813D ordered superstructures of mesocrystalline NH4TiOF3 and (NH4)2TiOF4 are synthesized via in-situ evolution from anodic TiO2 nanotube arrays grown on the Ti metal substrate under high current density. As revealed by X-ray diffraction, scanning electron microscopy and transmission electron microscopy characterizations, the obtained NH4TiOF3 and (NH4)2TiOF4 mesocrystals consist of well aligned nanoparticle subunits at atomic level and can be converted to TiO2 (anatase) mesocrystals with their original exterior shapes retained upon thermal annealing. Close examination suggests that NH4TiOF3 and (NH4)2TiOF4 mesocrystals form via a nonclassical crystal growth process involving fast oriented aggregation of particles assisted by electric field-dipole interaction.Hui LiZixue SuElsevierarticleNon-classical crystal growthMesocrystalAmmonium oxofluorotitanatesTiO2Electric field driven oriented attachmentIndustrial electrochemistryTP250-261ChemistryQD1-999ENElectrochemistry Communications, Vol 133, Iss , Pp 107163- (2021) |
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DOAJ |
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Non-classical crystal growth Mesocrystal Ammonium oxofluorotitanates TiO2 Electric field driven oriented attachment Industrial electrochemistry TP250-261 Chemistry QD1-999 |
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Non-classical crystal growth Mesocrystal Ammonium oxofluorotitanates TiO2 Electric field driven oriented attachment Industrial electrochemistry TP250-261 Chemistry QD1-999 Hui Li Zixue Su In-situ evolution of anodic TiO2 nanotubes to ammonium oxofluorotitanate mesocrystals and their conversion to mesocrystalline TiO2 |
description |
3D ordered superstructures of mesocrystalline NH4TiOF3 and (NH4)2TiOF4 are synthesized via in-situ evolution from anodic TiO2 nanotube arrays grown on the Ti metal substrate under high current density. As revealed by X-ray diffraction, scanning electron microscopy and transmission electron microscopy characterizations, the obtained NH4TiOF3 and (NH4)2TiOF4 mesocrystals consist of well aligned nanoparticle subunits at atomic level and can be converted to TiO2 (anatase) mesocrystals with their original exterior shapes retained upon thermal annealing. Close examination suggests that NH4TiOF3 and (NH4)2TiOF4 mesocrystals form via a nonclassical crystal growth process involving fast oriented aggregation of particles assisted by electric field-dipole interaction. |
format |
article |
author |
Hui Li Zixue Su |
author_facet |
Hui Li Zixue Su |
author_sort |
Hui Li |
title |
In-situ evolution of anodic TiO2 nanotubes to ammonium oxofluorotitanate mesocrystals and their conversion to mesocrystalline TiO2 |
title_short |
In-situ evolution of anodic TiO2 nanotubes to ammonium oxofluorotitanate mesocrystals and their conversion to mesocrystalline TiO2 |
title_full |
In-situ evolution of anodic TiO2 nanotubes to ammonium oxofluorotitanate mesocrystals and their conversion to mesocrystalline TiO2 |
title_fullStr |
In-situ evolution of anodic TiO2 nanotubes to ammonium oxofluorotitanate mesocrystals and their conversion to mesocrystalline TiO2 |
title_full_unstemmed |
In-situ evolution of anodic TiO2 nanotubes to ammonium oxofluorotitanate mesocrystals and their conversion to mesocrystalline TiO2 |
title_sort |
in-situ evolution of anodic tio2 nanotubes to ammonium oxofluorotitanate mesocrystals and their conversion to mesocrystalline tio2 |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://doaj.org/article/bad6c95f9c9647e9ae44ebdfc21ede6b |
work_keys_str_mv |
AT huili insituevolutionofanodictio2nanotubestoammoniumoxofluorotitanatemesocrystalsandtheirconversiontomesocrystallinetio2 AT zixuesu insituevolutionofanodictio2nanotubestoammoniumoxofluorotitanatemesocrystalsandtheirconversiontomesocrystallinetio2 |
_version_ |
1718409923915677696 |