In situ thermo-Raman study of titanium oxide nanotubes

Cortés-Jácome, M.A.; Ferrat-Torres, G.; Ortiz, L.F. Flores; Ángeles–Chávez, C.; López-Salinas, E.; Escobar, José; Mosqueira, M.L.; Toledo-Antonio, J.A.

doi:10.1016/j.cattod.2007.02.012

Cited by 86 publications

(75 citation statements)

References 37 publications

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“…Thermal treatment induces the transformation of the tritianate structure into TiO 2 -B (400 1C), anatase (700 1C) and then rutile (1000 1C). The open inner channel of nanotubes is preserved up to 400 1C, then the structure gradually collapses into shorter nanorods [26][27][28][29]. Nanowires can withstand temperatures up to 1000 1C without the loss of their fibrous morphology, then they convert into more isotropic fragments [30].…”

Section: Synthesis Of 1d Titanatesmentioning

confidence: 95%

Atomic scale characterization and surface chemistry of metal modified titanate nanotubes and nanowires

Kukovecz

Kordás

Kiss

2016

Surface Science Reports

102

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Titanates are salts of polytitanic acid that can be synthesized as nanostructures in a great variety concerning crystallinity, morphology, size, metal content and surface chemistry.Titanate nanotubes (open-ended hollow cylinders measuring up to 200 nm in length and 15 nm in outer diameter) and nanowires (solid, elongated rectangular blocks with length up to 1500 nm and 30-60 nm diameter) are the most widespread representatives of the titanate nanomaterial family. This review covers the properties and applications of these two materials from the surface science point of view. Dielectric, vibrational, electron and X-ray spectroscopic results are comprehensively discussed first, then surface modification methods including covalent functionalization, ion exchange and metal loading are covered. The versatile surface chemistry of onedimensional titanates renders them excellent candidates for heterogeneous catalytic, photocatalytic, photovoltaic and energy storage applications, therefore, these fields are also reviewed.

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Section: Synthesis Of 1d Titanatesmentioning

confidence: 95%

Atomic scale characterization and surface chemistry of metal modified titanate nanotubes and nanowires

Kukovecz

Kordás

Kiss

2016

Surface Science Reports

102

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“…It is very difficult to assign this peak to a defined mode as one might find even two maxima in this region -one about 636 cm -1 and the second one at about 668 cm -1 . The former maximum might be attributed to E g mode of anatase, whereas the latter one has been reported to be due to Ti-O-Ti [38] or Ti-O-Na [39] vibrations in nanotubes. Another peak which might be assigned to Ti-O-Na vibrations in TNT structure was identified by Bavykin et al [38] at 917 cm -1 .…”

Section: Accepted Manuscriptmentioning

confidence: 97%

“…This could be explained by the exchange of Na + to H + during the washing step [38,39]. The peak at 270 cm -1 with a shoulder at 286 cm -1 can be attributed to TNT only, since it was not A c c e p t e d m a n u s c r i p t present in the P25 spectrum.…”

Section: Accepted Manuscriptmentioning

confidence: 98%

Physico-chemical properties and possible photocatalytic applications of titanate nanotubes synthesized via hydrothermal method

Mozia¹,

Borowiak‐Palen²,

Przepiórski³

et al. 2010

Journal of Physics and Chemistry of Solids

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, Physico-chemical properties and possible photocatalytic applications of titanate nanotubes synthesized via hydrothermal method, Journal of Physics and Chemistry of Solids, doi:10.1016Solids, doi:10. /j.jpcs.2009 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. of TNTs synthesized at 140°C was about 2.5 times higher than that generated with use of TiO 2 P25. To the best of our knowledge this is a first report on the photocatalytic generation of hydrocarbons using TNTs in the current state of the art.

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“…The influence of temperature on the structure and phase transitions of titanate nanotubes [11,[27][28][29][30][31] and crystalline hydrogen trititanate [25, 27, and 32] is well understood. The thermal behavior of crystalline H 2 Ti 3 O 7 has been studied by A.…”

Section: Introductionmentioning

confidence: 99%

The mechanochemical stability of hydrogen titanate nanostructures

Plodinec¹,

Friščić²,

Iveković³

et al. 2010

Journal of Alloys and Compounds

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The structural stability of some nanostructured titanates was investigated in terms of their subsequent processing and possible applications. With the aim to investigate their mechanochemical stability, we applied high-energy ball milling and studied the resulting induced phase transitions. Hydrogen titanates with two different morphologies, microcrystals and nanotubes, were taken into consideration. The phase-transition sequence was studied by Raman spectroscopy and X-ray powder diffraction, while the morphology and crystal structure, on the nanoscale, were analyzed by high-resolution transmission electron microscopy. During the mechanochemical treatment of both morphologies, the phase transitions from hydrogen titanate to TiO2 anatase and subsequently to TiO2 rutile were observed. In the case of hydrogen trititanate crystals, the phase transition to anatase starts after a longer milling time than in the case of the titanate nanotubes, which is explained by the larger particle size of the crystalline powder. However, the phase transition from anatase to rutile occurred more quickly in the crystalline powder than in the case of the nanotubes.

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In situ thermo-Raman study of titanium oxide nanotubes

Cited by 86 publications

References 37 publications

Atomic scale characterization and surface chemistry of metal modified titanate nanotubes and nanowires

Atomic scale characterization and surface chemistry of metal modified titanate nanotubes and nanowires

Physico-chemical properties and possible photocatalytic applications of titanate nanotubes synthesized via hydrothermal method

The mechanochemical stability of hydrogen titanate nanostructures

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