Preparation of TiO<sub>2</sub> Nanorod Arrays by Electrophoretic Deposition of Titania Nanoparticles

The TiO2 nanorod arrays were fabricated by the electrophoretic deposition (EPD) of the 4.5 and 7 nm-sized anatase titania nanoparticles using the anodized aluminum oxide (AAO) as the template. Each of the TiO2 nanoparticle was plus-charged by adjusting the pH of the electrolyte. The growth rate of TiO2 nanorod arrays with this new method was dramatically higher than that of the arrays obtained from the conventional EPD method employing sol-gel solutions. In addition, the robust anatase-phase TiO2 nanorod arrays were obtained without post-thermal treatment. The scanning electron microscope (SEM) images showed that the titania nanoparticles were tightly interconnected to form the highly uniform and well-organized TiO2 nanorod arrays. The diameter of the TiO2 nanorod arrays was 55~58 nm with the length of 15 0m, which corresponded to the size of AAO templates.

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Biocompatible Ceramic-Biopolymer Coatings Obtained by Electrophoretic Deposition on Electron Beam Structured Titanium Alloy Surfaces

Materials Science Forum ◽

10.4028/www.scientific.net/msf.879.1552 ◽

2016 ◽

Vol 879 ◽

pp. 1552-1557

Author(s):

C. Ramskogler ◽

L. Cordero ◽

Fernando Warchomicka ◽

A.R. Boccaccini ◽

Christof Sommitsch

Keyword(s):

Titanium Alloy ◽

Surface Modification ◽

Electron Beam ◽

Electrophoretic Deposition ◽

Composite Coatings ◽

Substrate Surface ◽

3D Structure ◽

Titania Nanoparticles ◽

Structured Surfaces ◽

Major Interest

An area of major interest in biomedical engineering is currently the development of improved materials for medical implants. Research efforts are being focused on the investigation of surface modification methods for metallic prostheses due to the fundamental bioinert character of these materials and the possible ion release from their surfaces, which could potentially induce the interfacial loosening of devices after implantation. Electron beam (EB) structuring is a novel technique to control the surface topography in metals. Electrophoretic deposition (EPD) offers the feasibility to deposit at room temperature a variety of materials on conductive substrates from colloidal suspensions under electric fields. In this work single layers of chitosan composite coatings containing titania nanoparticles (n-TiO2) were deposit by EPD on electron beam (EB) structured Ti6Al4V titanium alloy. Surface structures were designed following different criteria in order to develop specific topography on the Ti6Al4V substrate. n-TiO2 particles were used as a model particle in order to demonstrate the versatility of the proposed technique for achieving homogenous chitosan based coatings on structured surfaces. A linear relation between EPD time and deposition yield on different patterned Ti6Al4V surfaces was determined under constant voltage conditions, obtaining homogeneous EPD coatings which replicate the 3D structure (pattern) of the substrate surface. The present results show that a combination of both techniques can be considered a promising surface modification approach for metallic implants, which should lead to improved interaction between the implant surface and the biological environment for orthopaedic applications.

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Green triboelectric nanogenerator based on waste polymers for electrophoretic deposition of titania nanoparticles

Nano Energy ◽

10.1016/j.nanoen.2021.106581 ◽

2021 ◽

pp. 106581

Author(s):

M.A. Jalili ◽

Z. Khosroshahi ◽

N. Raeisi Kheirabadi ◽

F. Karimzadeh ◽

M.H. Enayati

Keyword(s):

Electrophoretic Deposition ◽

Titania Nanoparticles ◽

Triboelectric Nanogenerator

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Electrophoretic deposition of titanate nanotubes from commercial titania nanoparticles: Application to dye-sensitized solar cells

Electrochemistry Communications ◽

10.1016/j.elecom.2006.03.037 ◽

2006 ◽

Vol 8 (6) ◽

pp. 961-966 ◽

Cited By ~ 96

Author(s):

Gil-Sung Kim ◽

Hyung-Kee Seo ◽

V.P. Godble ◽

Young-Soon Kim ◽

O-Bong Yang ◽

...

Keyword(s):

Solar Cells ◽

Electrophoretic Deposition ◽

Dye Sensitized Solar Cells ◽

Titanate Nanotubes ◽

Titania Nanoparticles ◽

Dye Sensitized ◽

Sensitized Solar Cells

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Aligned ZnO:Co nanorod arrays: Electrophoretic deposition fabrication and magnetic manipulation

Ceramics International ◽

10.1016/j.ceramint.2014.10.159 ◽

2015 ◽

Vol 41 (3) ◽

pp. 3456-3460 ◽

Cited By ~ 6

Author(s):

Jianjun Li ◽

Liting Zhang ◽

Jinbo Zhu ◽

Yin Liu ◽

Weichang Hao

Keyword(s):

Electrophoretic Deposition ◽

Nanorod Arrays ◽

Magnetic Manipulation

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Electrophoretic deposition of titania nanoparticles: Wet density of deposits during EPD

Bulletin of Materials Science ◽

10.1007/s12034-014-0042-1 ◽

2014 ◽

Vol 37 (5) ◽

pp. 1039-1046 ◽

Cited By ~ 8

Author(s):

Morteza Farrokhi-Rad ◽

Taghi Shahrabi ◽

Shirin Khanmohammadi

Keyword(s):

Electrophoretic Deposition ◽

Titania Nanoparticles

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Methods for functionalization of microsized polystyrene beads with titania nanoparticles for cathodic electrophoretic deposition

Journal of Colloid and Interface Science ◽

10.1016/j.jcis.2007.10.061 ◽

2008 ◽

Vol 318 (2) ◽

pp. 264-270 ◽

Cited By ~ 17

Author(s):

S. Radice ◽

P. Kern ◽

H. Dietsch ◽

S. Mischler ◽

J. Michler

Keyword(s):

Electrophoretic Deposition ◽

Titania Nanoparticles ◽

Polystyrene Beads

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Growth of Oxide Nanorod, Nanotube and Nanocable Arrays through Template-Based Sol Electrophoretic Deposition

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.336-338.2122 ◽

2007 ◽

Vol 336-338 ◽

pp. 2122-2127 ◽

Cited By ~ 1

Author(s):

H.M. Shang ◽

Ying Wang ◽

Guo Zhong Cao

Keyword(s):

Thin Films ◽

Metal Oxide ◽

Single Crystal ◽

Electrophoretic Deposition ◽

Nanotube Arrays ◽

Core Shell ◽

Nanorod Arrays ◽

Conformal Coating

This paper introduces a process for the growth of oxide nanorod, nanotube, and nanocable arrays that combines sol preparation and template-based electrophoretic deposition. Examples are shown that the sol electrophoretic deposition is an effective method for the formation of polycrystalline and single crystal oxide nanorod arrays, nanotube arrays and conformal coating of thin films of oxides on metal nanorods to produce metal-oxide core-shell nanocable arrays.

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SELF-ASSEMBLY OF CdSe NANOROD ARRAYS BY ELECTROPHORETIC DEPOSITION OF CdSe NANOPARTICLES

International Journal of Nanoscience ◽

10.1142/s0219581x11008198 ◽

2011 ◽

Vol 10 (06) ◽

pp. 1215-1223 ◽

Cited By ~ 1

Author(s):

B. VIGNEASHWARI ◽

S. V. M. SATYANARAYANA

Keyword(s):

Electrophoretic Deposition ◽

Self Assembly ◽

Low Cost ◽

Nanorod Arrays ◽

Fractal Nature ◽

Spherical Nanoparticles ◽

Post Heat Treatment ◽

Deposited Film ◽

Deposition Techniques ◽

Cdse Nanorod

The formation of arrays of CdSe nanorods and their fractal aggregates by a self-assembly of spherical nanoparticles of CdSe is achieved using electrophoretic deposition (EPD). Notably, neither templates nor complexating agents are used during the deposition. Also, deposits have not been subjected to any post-heat treatment. EPD turns out to be a low-cost, pollution-free, and a highly portable technique among all the other deposition techniques known. The size, crystallinity, composition, and shape of the nanoparticles as well as the deposits were analyzed using XRD, TEM, and EDAX. Mechanisms for different stages of deposition, and self-assembly is inferred by a detailed analysis of surface morphology of nanostructural deposits using HRSEM and AFM studies. Fractal nature of the deposits is quantified by computing fractal dimension of a typical portion of a deposited film.

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