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Structure -- Magnetic Property Corre...

Mohammad Hosseinpour, Pegah.

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Structure -- Magnetic Property Correlations in TiO 2 Nanotube Arrays.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Structure -- Magnetic Property Correlations in TiO 2 Nanotube Arrays./
作者:	Mohammad Hosseinpour, Pegah.
面頁冊數:	206 p.
附註:	Source: Dissertation Abstracts International, Volume: 75-08(E), Section: B.
Contained By:	Dissertation Abstracts International75-08B(E).
標題:	Materials science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3619064
ISBN:	9781303877452

Structure -- Magnetic Property Correlations in TiO 2 Nanotube Arrays.
Mohammad Hosseinpour, Pegah.

Structure -- Magnetic Property Correlations in TiO 2 Nanotube Arrays. - 206 p.

Source: Dissertation Abstracts International, Volume: 75-08(E), Section: B.

Thesis (Ph.D.)--Northeastern University, 2014.

This item must not be sold to any third party vendors.

TiO2 nanotube arrays are promising candidates for applications such as photocatalysis and for potential employment in spin-electronic (spintronic) devices. The functionality of TiO2-based nanotubes is highly dependent on their structure (microstructure and crystallographic symmetry) and magnetic properties. Unified understanding of the influence of these factors on the electronic structure of TiO2 is of paramount importance towards engineering these materials.

ISBN: 9781303877452Subjects--Topical Terms:

543314
Materials science.

Structure -- Magnetic Property Correlations in TiO 2 Nanotube Arrays.
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100 1 $a Mohammad Hosseinpour, Pegah. $3 3173522
245 1 0 $a Structure -- Magnetic Property Correlations in TiO 2 Nanotube Arrays.
300 $a 206 p.
500 $a Source: Dissertation Abstracts International, Volume: 75-08(E), Section: B.
500 $a Adviser: Laura H. Lewis.
502 $a Thesis (Ph.D.)--Northeastern University, 2014.
506 $a This item must not be sold to any third party vendors.
520 $a TiO2 nanotube arrays are promising candidates for applications such as photocatalysis and for potential employment in spin-electronic (spintronic) devices. The functionality of TiO2-based nanotubes is highly dependent on their structure (microstructure and crystallographic symmetry) and magnetic properties. Unified understanding of the influence of these factors on the electronic structure of TiO2 is of paramount importance towards engineering these materials.
520 $a This Dissertation aims at investigating the correlations of the morphology, crystallinity, crystal structure, electronic structure and magnetic properties of TiO2 nanotubes, with potential relevance to their functionality. Self-ordered arrays of amorphous TiO2 nanotubes (pure and Fe-doped with cationic concentration of ~2.1 at%) were synthesized by the electrochemical anodization technique, followed by subjecting them to thermal treatments up to 450 °C to crystallize these nanostructures. A variety of probes---morphological, structural, magnetic and spectroscopic---were used to characterize the properties of these nanostructures as functions of their processing conditions and the dopant content. Structure-functionality relationships in these nanostructures were verified by examining the photodegradation rate of methyl orange (a model water pollutant) in presence of TiO2 nanotubes under UV-Visible light irradiation.
520 $a Results from this Dissertation research demonstrated that post-synthesis processing conditions---specifically, the nature of the annealing environment, as well as the presence of an external dopant, can alter the crystal structure and local electronic environment in TiO2 nanotubes, with subsequent effects on the magnetic properties of these nanostructures. The fundamental knowledge obtained in this research, on the interrelations of structural-magnetic properties and their potential influence on the functionality of TiO 2-based nanotubes, can be extended to the metal oxide semiconducting systems in general and is anticipated to provide avenues toward novel materials with enhanced functionality that originates from such tailored structural and magnetic characteristics.
520 $a Despite the success achieved in this Dissertation, there are still open questions to be addressed in order to further enhance the fundamental knowledge of structure---magnetic property correlations in TiO2 nanotubes. In this regard, the concluding section of this Dissertation provides recommendations for additional experiments. Accomplishment of these recommendations is anticipated to provide enhanced insight into the various aspects of property-functionality relationships in TiO2-based nanomaterials, and provides paths to engineer novel multifunctional oxide-based materials for energy-related applications.
590 $a School code: 0160.
650 4 $a Materials science. $3 543314
650 4 $a Electromagnetics. $3 3173223
650 4 $a Chemical engineering. $3 560457
690 $a 0794
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710 2 $a Northeastern University. $b Chemical Engineering. $3 1669259
773 0 $t Dissertation Abstracts International $g 75-08B(E).
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791 $a Ph.D.
792 $a 2014
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3619064