Sol–gel synthesis of Ag-doped titania-coated carbon nanotubes and study their biomedical applications

2019 ◽  
Vol 74 (1) ◽  
pp. 197-208 ◽  
Author(s):  
Duha S. Ahmed ◽  
Mustafa K. A. Mohammed ◽  
Mohammad R. Mohammad
Keyword(s):  
Carbon Nanotubes ◽  
Biomedical Applications ◽  
Sol Gel ◽  
Doped Titania ◽  
Sol Gel Synthesis ◽  
Coated Carbon

One-pot sol–gel synthesis of Ni/TiO2 catalysts for methane decomposition into COx free hydrogen and multiwalled carbon nanotubes

2017 ◽  
Vol 42 (26) ◽  
pp. 16495-16513 ◽  
Author(s):  
Manoj Pudukudy ◽  
Zahira Yaakob ◽  
Abudukeremu Kadier ◽  
Mohd Sobri Takriff ◽  
Nik Suhaimi Mat Hassan
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Sol Gel ◽  
Methane Decomposition ◽  
Multiwalled Carbon ◽  
One Pot ◽  
Free Hydrogen ◽  
Sol Gel Synthesis

Preparation and Electromagnetic Wave Absorption Properties of Carbon Nanotubes-Titanium Dioxide Nanoparticles

2012 ◽  
Vol 457-458 ◽  
pp. 225-228 ◽  
Author(s):  
Xin Jun Wang ◽  
Fang Wang ◽  
Chen Gao ◽  
Dong Shan Sun
Keyword(s):  
Carbon Nanotubes ◽  
Titanium Dioxide ◽  
Titanium Dioxide Nanoparticles ◽  
Sol Gel ◽  
Weight Fraction ◽  
Absorption Properties ◽  
Gel Method ◽  
Sol Gel Method ◽  
Microwave Absorbing Materials ◽  
Coated Carbon

A novel titanium dioxide （TiO2） nanoparticles coated carbon nanotubes (CNTs) composites were prepared by sol-gel method as microwave absorbing materials in this paper. SEM and XRD researches show that sol-gel method can realize uniform coating of CNTs with TiO2. Among them, with the weight fraction of TiO2/ CNTs composites was 10%, microwave absorption characteristics with a minimum RL value of -34 dB at 6.2 GHz on a coating with a matching thickness of 4mm and <−10 dB was obtained in the frequency range of 4.5-18 GHz with the thickness of 1.5-5.0mm.

Sol-Gel Synthesis of Nanocomposite Li4Ti5O12/Carbon Nanotubes as Anode Materials for High-Rate Performance Lithium Ion Batteries

2013 ◽  
Vol 833 ◽  
pp. 45-49 ◽  
Author(s):  
Xiao Wei Miao ◽  
Hong Ming He ◽  
Li Yi Shi ◽  
Xin Luo Zhao ◽  
Jian Hui Fang
Keyword(s):  
Carbon Nanotubes ◽  
High Current Density ◽  
Sol Gel ◽  
Electronic Conductivity ◽  
Lithium Ion ◽  
Cycling Performance ◽  
High Rate ◽  
The Matrix ◽  
Rate Capacity ◽  
Sol Gel Synthesis

Abstract. Nanocomposite Li4Ti5O12/carbon nanotubes (Li4Ti5O12/CNTs) are facilely synthesized by a sol-gel method. The crystal structure and morphology of the nanocomposite Li4Ti5O12/CNTs are characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. CNTs play the important role just like a big network connecting the nanoparticles of Li4Ti5O12, which provides a good channel for electronic conductivity and ion transport. Within the cut-off voltage between 1-2.4V, the initial discharge capacity of Li4Ti5O12/CNTs material is 179.6 mAh/g at the rate of 0.1C. The capacity retentions are 95.5% and 90.6% of Li4Ti5O12 with and without CNTs, respectively. At high current density of 10C, Li4Ti5O12/CNTs delivers the initial capacity of 141.5 mAh/g, and without any capacity loss after charge/discharge 100 cycles. The matrix of CNTs plays important roles in increasing the conductivity and avoiding the aggregation of Li4Ti5O12, which lead to high-rate capacity and cycling performance.

scholarly journals Coating of Titanium Substrates with ZrO2 and ZrO2-SiO2 Composites by Sol-Gel Synthesis for Biomedical Applications: Structural Characterization, Mechanical and Corrosive Behavior

Coatings ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 200 ◽  
Author(s):  
Michelina Catauro ◽  
Federico Barrino ◽  
Massimiliano Bononi ◽  
Elena Colombini ◽  
Roberto Giovanardi ◽  
...  
Keyword(s):  
Biomedical Applications ◽  
Sol Gel ◽  
Living Organism ◽  
Titanium Implants ◽  
Metallic Materials ◽  
Zro2 Content ◽  
Implant Surface ◽  
Sol Gel Synthesis ◽  
Titanium Substrates ◽  
Harmful Effects

The use of metallic materials as implants presents some major drawbacks, such as their harmful effects on the living organism, especially those induced by corrosion. To overcome this problem, the implant surface of titanium implants can be improved using a coating of bioactive and biocompatible materials. The aim of this work is the synthesis of SiO2/ZrO2 composites with different percentages of zirconia matrix (20, 33 and 50 wt.%), by the sol-gel method to coat commercial Grade 4 titanium disks using a dip coater. Attenuated total reflectance Fourier transform infrared (ATR/FTIR) spectroscopy was used to evaluate the interactions between the inorganic matrices. Furthermore, the mechanical properties and corrosive behavior of the SiO2/ZrO2 coatings were evaluated as a function of the ZrO2 content. The bioactive properties of the substrate coated with different composites were evaluated using simulated body fluid (SBF). The antibacterial activity was tested against gram-negative and gram-positive Escherichia coli and Enterococcus faecalis, respectively, to assess the release of toxic products from the different composites and to evaluate the possibility of using them in the biomedical field.

scholarly journals Sol–gel synthesis and structural characterisation of P2O5–B2O3–Na2O glasses for biomedical applications

2009 ◽  
Vol 19 (1) ◽  
pp. 150-158 ◽  
Author(s):  
Daniela Carta ◽  
Jonathan C. Knowles ◽  
Paul Guerry ◽  
Mark E. Smith ◽  
Robert J. Newport
Keyword(s):  
Biomedical Applications ◽  
Sol Gel ◽  
Structural Characterisation ◽  
Sol Gel Synthesis
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