The synergy of ultrasonic treatment and organic modifiers for tuning the surface chemistry and conductivity of multiwalled carbon nanotubes

2014 ◽  
Vol 46 (10-11) ◽  
pp. 940-944 ◽  
Author(s):  
Mária Omastová ◽  
Matej Mičušík ◽  
Pavol Fedorko ◽  
Jürgen Pionteck ◽  
Jana Kovářová ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Surface Chemistry ◽  
Multiwalled Carbon Nanotubes ◽  
Ultrasonic Treatment ◽  
Organic Modifiers ◽  
Multiwalled Carbon

Surface Chemistry and Structure of Purified, Ozonized, Multiwalled Carbon Nanotubes Probed by NEXAFS and Vibrational Spectroscopies

ChemPhysChem ◽  
2004 ◽  
Vol 5 (9) ◽  
pp. 1416-1422 ◽  
Author(s):  
Sarbajit Banerjee ◽  
Tirandai Hemraj-Benny ◽  
Mahalingam Balasubramanian ◽  
Daniel A. Fischer ◽  
James A. Misewich ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Surface Chemistry ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon ◽  
Vibrational Spectroscopies ◽  
Surface Chemistry And Structure

Nanotubols under H2O2 exposure: is it possible to poly-hydroxylate carbon nanotubes?

2019 ◽  
Vol 21 (43) ◽  
pp. 24077-24091 ◽  
Author(s):  
J. Vicente-Santiago ◽  
J. Cornejo-Jacob ◽  
D. Valdez-Pérez ◽  
J. Ruiz-García ◽  
R. A. Guirado-López
Keyword(s):  
Carbon Nanotubes ◽  
Surface Chemistry ◽  
Multiwalled Carbon Nanotubes ◽  
High Temperatures ◽  
Theoretical Study ◽  
Multiwalled Carbon

We present a combined experimental and theoretical study dedicated to analyze the variations in the surface chemistry of hydroxylated multiwalled carbon nanotubes (MWCNTs), so called nanotubols, when exposed to H2O2 at high temperatures.

Influence of the Surface Chemistry of Multiwalled Carbon Nanotubes on the Selective Conversion of Cellulose into Sorbitol

ChemCatChem ◽  
2017 ◽  
Vol 9 (5) ◽  
pp. 888-896 ◽  
Author(s):  
Lucília S. Ribeiro ◽  
Juan J. Delgado ◽  
José J. de Melo Órfão ◽  
M. Fernando Ribeiro Pereira
Keyword(s):  
Carbon Nanotubes ◽  
Surface Chemistry ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon ◽  
Selective Conversion

scholarly journals Characterization of Multiwalled Carbon Nanotubes Dispersing in Water and Association with Biological Effects

2011 ◽  
Vol 2011 ◽  
pp. 1-12 ◽  
Author(s):  
Xuelian Cheng ◽  
Jun Zhong ◽  
Jie Meng ◽  
Man Yang ◽  
Fumin Jia ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Surface Chemistry ◽  
Multiwalled Carbon Nanotubes ◽  
Biomedical Application ◽  
Uv Spectroscopy ◽  
Biological Effects ◽  
Length Distribution ◽  
Multiwalled Carbon ◽  
Physicochemical Features

Biomedical application potentials of carbon nanotubes-based materials have been investigated intensively in recent years; however, characterization and metrology are still facing great technical challenges when the materials are intended to be used as carriers for therapeutics in aqueous solutions. Systematic characterization on the dispersing carbon nanotubes is urgently required and therefore of significance. In this paper multiwalled carbon nanotubes (MWCNTs) with different average lengths or with different oxidation degrees were dispersed in water and characterized systematically by applying UV spectroscopy, SEM, DLS, TGA, XPS, and FTIR. In particular, the characteristic absorption of the carbon nanotubes was analyzed using resolution-fitting technique to establish relations of wavelength and absorption intensity to the size distribution and surface chemistry. Results indicated that the absorption spectra of MWCNTs could reflect the variation of surface chemistry and length distribution of carbon nanotubes dispersed in water by combining with the other measurements. A vascular endothelium cell line was taken as a model to figure out association between physicochemical features and cytotoxicity of the carbon nanotubes. It was showed that the multiwalled carbon nanotubes with different oxidation degrees and similar length distribution exhibited different interaction files to the cells proliferation in a manner of time dependence and concentration dependence.

Influence of Ultrasonic Treatment on Electromagnetic Characteristics of Composites Based on Multiwall Carbon Nanotubes at Microwave Frequencies

2016 ◽  
Vol 683 ◽  
pp. 65-70 ◽  
Author(s):  
Olga Dotsenko ◽  
Anastasia Kachusova
Keyword(s):  
Carbon Nanotubes ◽  
Dielectric Properties ◽  
Multiwalled Carbon Nanotubes ◽  
Ultrasonic Treatment ◽  
Multiwall Carbon Nanotubes ◽  
Multiwalled Carbon ◽  
Microwave Frequencies ◽  
Absorbing Materials ◽  
Electromagnetic Characteristics ◽  
Multiwall Carbon

There is a growing demand for light and radar absorbing materials in both commercial and military purposes. In this paper, microwave properties of polimer based composites containing multiwalled carbon nanotubes used as fillers have been analyzed. The multiwall carbon nanotubes used in the composite were about 9.4 nm in diameter. The results show that the ultrasonic treatment modifies the dielectric properties of the composite. Both real and imaginary permittivity of composites is 2 times more than ordinary example after sonicating for 3 minutes.

Controlling the Surface Chemistry of Multiwalled Carbon Nanotubes for the Production of Highly Efficient and Stable Laccase-Based Biocatalysts

ChemPlusChem ◽  
2014 ◽  
Vol 79 (8) ◽  
pp. 1116-1122 ◽  
Author(s):  
Cláudia G. Silva ◽  
Ana P. M. Tavares ◽  
Goran Dražić ◽  
Adrián M. T. Silva ◽  
José M. Loureiro ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Surface Chemistry ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon ◽  
Highly Efficient
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