Exploring the role of quantum-mechanical descriptors in the concentration-dependent adsorption of aromatic organic compounds by multiwalled carbon nanotubes

2018 ◽  
Vol 119 (5) ◽  
pp. e25825 ◽  
Author(s):  
Suman Lata ◽  
Vikas
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Organic Compounds ◽  
Quantum Mechanical ◽  
Multiwalled Carbon

Functionalization of Multiwalled Carbon Nanotubes with Cyclic Nitrones for Materials and Composites: Addressing the Role of CNT Sidewall Defects

2011 ◽  
Vol 23 (7) ◽  
pp. 1923-1938 ◽  
Author(s):  
Giuliano Giambastiani ◽  
Stefano Cicchi ◽  
Alessandra Giannasi ◽  
Lapo Luconi ◽  
Andrea Rossin ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon ◽  
Cyclic Nitrones

Enhanced field emission properties of thin-multiwalled carbon nanotubes: Role of SiOx coating

2006 ◽  
Vol 100 (10) ◽  
pp. 104303 ◽  
Author(s):  
J. S. Moon ◽  
P. S. Alegaonkar ◽  
J. H. Han ◽  
T. Y. Lee ◽  
J. B. Yoo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Field Emission ◽  
Multiwalled Carbon ◽  
Emission Properties ◽  
Field Emission Properties

Enhanced vacuum sensing performance of multiwalled carbon nanotubes: role of defects and carboxyl functionalization

RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 20479-20485 ◽  
Author(s):  
K. Rajavel ◽  
M. Dinesh ◽  
R. Saranya ◽  
R. T. Rajendra Kumar
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon ◽  
Surface Active ◽  
Sensing Characteristics ◽  
Carboxyl Functionalization ◽  
Sensing Performance

The presence of surface active carboxylic sites and the nature of the (ordered and defective) stacking of graphite layers in the nanotubes determined the vacuum sensing characteristics.

Inelastic Deformations in Multi-Walled Carbon Nanotubes

1999 ◽  
Vol 593 ◽  
Author(s):  
D. Tekleab ◽  
R. Czerw ◽  
A. Rubio ◽  
P.M. Ajayan ◽  
D.L. Carroll
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
High Power ◽  
Multiwalled Carbon ◽  
Ultrasonic Agitation ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Insight Into

ABSTRACTWe report the use of high power ultrasonic agitation to create inelastic deformations in multiwalled carbon nanotubes. Using STM coupled with TEM we show that this damage can range from kinking to breaking of continuous tube walls into segments. Such deformed tubes provide an insight into the role of re-hybridization in the electrical and mechanical properties of tubes.

scholarly journals Pt- and Pd-decorated MWCNTs for vapour and gas detection at room temperature

2015 ◽  
Vol 6 ◽  
pp. 919-927 ◽  
Author(s):  
Hamdi Baccar ◽  
Atef Thamri ◽  
Pierrick Clément ◽  
Eduard Llobet ◽  
Adnane Abdelghani
Keyword(s):  
Carbon Nanotubes ◽  
Volatile Organic Compounds ◽  
Multiwalled Carbon Nanotubes ◽  
Organic Compounds ◽  
Room Temperature ◽  
Surface Defects ◽  
Pd Nanoparticles ◽  
Oxygen Plasma Treatment ◽  
Multiwalled Carbon ◽  
Volatile Organic

Here we report on the gas sensing properties of multiwalled carbon nanotubes decorated with sputtered Pt or Pd nanoparticles. Sputtering allows for an oxygen plasma treatment that removes amorphous carbon from the surface of the carbon nanotubes and creates oxygenated surface defects in which metal nanoparticles nucleate within a few minutes. The decoration with the 2 nm Pt or the 3 nm Pd nanoparticles is very homogeneous. This procedure is performed at the device level (i.e., for carbon nanotubes deposited onto sensor substrates) for many devices in one batch, which illustrates the scalability for the mass production of affordable nanosensors. The response to selected aromatic and non-aromatic volatile organic compounds, as well as pollutant gases has been studied. Pt- and Pd-decorated multiwalled carbon nanotubes show a fully reversible response to the non-aromatic volatile organic compounds tested when operated at room temperature. In contrast, these nanomaterials were not responsive to the aromatic compounds studied (measured at concentrations up to 50 ppm). Therefore, these sensors could be useful in a small, battery-operated alarm detector, for example, which is able to discriminate aromatic from non-aromatic volatile organic compounds in ambient.

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