نتایج جستجو برای: disordered filaments tio2 nanotubes

تعداد نتایج: 104425  

2009
Yi Xie SungHwan Heo SeungHwa Yoo Ghafar Ali SungOh Cho

A simple and straightforward approach to prepare TiO2-coated carbon nanotubes (CNTs) is presented. Anatase TiO2 nanoparticles (NPs) with the average size ~8 nm were coated on CNTs from peroxo titanic acid (PTA) precursor even at low temperature of 100 °C. We demonstrate the effects of CNTs/TiO2 molar ratio on the adsorption capability and photocatalytic efficiency under UV-visible irradiation. ...

Journal: :Nanoscale 2013
David Di Yao Matthew R Field Anthony P O'Mullane Kourosh Kalantar-Zadeh Jian Zhen Ou

Despite a favourable morphology, anodized and ordered TiO2 nanotubes are incapable of showing electrochromic properties in comparison to many other metal oxide counterparts. To tackle this issue, MoO3 of ~5 to 15 nm thickness was electrodeposited onto TiO2 nanotube arrays. A homogenous MoO3 coating was obtained and the crystal phase of the electrodeposited coating was determined to be α-MoO3. T...

2005
G. P. Sklar H. Singh V. Mahajan

A quick and dependable technique has been developed that allows us to selectively produce anodized TiO2 in the form of nanotubes. The process employs mild chemical conditions and ambient temperature. The method can consistently produce nearly 100% surface coverage of nanotubes within 10 min of anodizing. Anodizing in relatively high pH electrolytes for 1 hour permitted us to produce nanotubes o...

Journal: :Nanoscale 2013
Yan Wen Bitao Liu Wei Zeng Yuhua Wang

Anatase/rutile mixed titania nanotubes (TiO2 NTs) precipitated with gold nanoparticles (Au NPs), i.e. Au/TiO2, have been synthesized and investigated on visible photocatalysis properties. A deposition-precipitation (DP) method was adopted to reduce the gold precursor to Au NPs within the preformed TiO2 NTs by the emulsion electrospinning technique. The optimal visible photocatalytic activity wa...

2013
Zhenhai Wen Suqin Ci Shun Mao Shumao Cui Zhen He Junhong Chen

This work describes a potential anode material for lithium-ion batteries (LIBs), namely, anatase TiO2 nanoparticle-decorated carbon nanotubes (CNTs@TiO2). The electrochemical properties of CNTs@TiO2 were thoroughly investigated using various electrochemical techniques, including cyclic voltammetry, electrochemical impedance spectroscopy, galvanostatic cycling, and rate experiments. It was revea...

2012
Koji Nakane Nobuo Ogata

Electrospinning (ES) is one of the most useful techniques to form nanofibers in a diameter of several hundred nanometers (Doshi & Reneker, 1995, Buchko et al., 1999, Huang et al., 2003). The diameter of the nanofibers produced by ES is at least one or two orders of magnitude smaller than those of conventional fiber production methods like melt or solution spinning. As a result, the electrospun ...

2012
Chang Hyo Lee Seung Woo Rhee Hyung Wook Choi

Efficiency of dye-sensitized solar cells [DSSCs] was enhanced by combining the use of TiO2 nanotubes [TNTs] and nanoparticles. TNTs were fabricated by a sol-gel method, and TiO2 powders were produced through an alkali hydrothermal transformation. DSSCs were constructed using TNTs and TiO2 nanoparticles at various weight percentages. TNTs and TiO2 nanoparticles were coated onto FTO glass by the ...

Journal: : 2022

The mechanical mixtures of titanium oxide (TiO2) with carbon nanostructures for 3D printing CJP technology, which are used as consumables the manufacturing electrically conductive composite products, created in this work. Various (single- and multi-walled nanotubes nanofibers) were creation products (TiO2–СNS) by technology. Optimal conditions processing (TiO2/MWCNT) on a planetary ball mixer (...

2010
Christiaan Richter Charles A. Schmuttenmaer

Nanoparticle films have become a promising low-cost, highsurface-area electrodematerial for solar cells and solar fuel production1,2. Compared to sintered nanoparticle films, oriented polycrystalline titania nanotubes offer the advantageof directed electron transport, and are expected to have higher electron mobility3–7. However, macroscopic measurements have revealed their electron mobility to...

Journal: :Chemistry 2016
Jingwen Xu Yan Li Xuemei Zhou Yuzhen Li Zhi-Da Gao Yan-Yan Song Patrik Schmuki

Herein, we use a facile procedure to graft a thin graphitic C3N4 (g-C3N4) layer on aligned TiO2 nanotube arrays (TiNT) by a one-step chemical vapor deposition (CVD) approach. This provides a platform to enhance the visible-light response of TiO2 nanotubes for antimicrobial applications. The formed g-C3N4/TiNT binary nanocomposite exhibits excellent bactericidal efficiency against Escherichia co...

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