scholarly journals Hydrogen Sorption on the Different Types of the Boron-Carbon Nanotubes

2020 ◽  
Author(s):  
Sergei Boroznin ◽  
Irina Zaporotskova ◽  
Natalia Boroznina ◽  
Lev Kozhitov
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Sorption ◽  
Different Types ◽  
Boron Carbon

Electronic and Mechanical Properties of Super Carbon Nanotube Networks

2006 ◽  
Vol 963 ◽  
Author(s):  
Vitor R. Coluci ◽  
Socrates O. Dantas ◽  
Ado Jorio ◽  
Douglas s Galvao
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Tight Binding ◽  
Deformation Mechanisms ◽  
Different Types ◽  
Dynamics Simulations ◽  
Walled Carbon Nanotubes ◽  
Carbon Nanotube Networks ◽  
Main Deformation

ABSTRACTEletronic and mechanical properties of ordered carbon nanotube networks are studied using molecular dynamics simulations and tight-binding calculations. These networks are formed by single walled carbon nanotubes (SWNT) regularly connected by junctions. The use of different types of junctions (“Y”-, “X”-like junctions, for example) allows the construction of networks with different symmetries. These networks can be very flexible and the elastic deformation was associated with two main deformation mechanisms (bending and stretching ) of the constituents SWNTs. Rolling up the networks, “super” carbon nanotubes can be constructed. These super-tubes share some of the main electronic features of the SWNT which form them but important changes are predicted (e.g. reduction of bandgap value). Simulations of their deformations under tensile stress have revealed that the super-tubes are softer than the corresponding SWNT and that their rupture occur in higher strain values.

Adsorption capacity of different types of carbon nanotubes towards metronidazole and dimetridazole antibiotics from aqueous solutions: effect of morphology and surface chemistry

2020 ◽  
Vol 27 (14) ◽  
pp. 17123-17137 ◽  
Author(s):  
Damarys H. Carrales-Alvarado ◽  
Roberto Leyva-Ramos ◽  
Inmaculada Rodríguez-Ramos ◽  
Esmeralda Mendoza-Mendoza ◽  
Adriana E. Moral-Rodríguez
Keyword(s):  
Carbon Nanotubes ◽  
Surface Chemistry ◽  
Aqueous Solutions ◽  
Adsorption Capacity ◽  
Different Types

Effects of Silicon Substrate on the Growth of Carbon Nanotubes

2009 ◽  
Author(s):  
K. P. Yung ◽  
R. Y. J. Tay ◽  
J. Wei ◽  
B. K. Tay
Keyword(s):  
Carbon Nanotubes ◽  
Vapor Deposition ◽  
Reference Value ◽  
Chemical Vapor ◽  
Catalyst Layer ◽  
Ni Catalyst ◽  
Thermal And Mechanical Properties ◽  
Si Substrate ◽  
Different Types ◽  
Deposition Conditions

Due to their extraordinary electrical, thermal and mechanical properties, carbon nanotubes (CNTs) have been foreseen as potential materials for electronics devices in the future. To integrate CNTs in electronic applications, CNTs would need to be deposited on different types of Si substrate. In this study, CNTs were grown on Ni catalyst layer with four types of substrates, namely Si, n++ Si, p++ Si and SiO2, using Plasma Enhanced Chemical Vapor Deposition (PECVD). The morphology and microstructure of the CNT films were analyzed by scanning electron microscopy (SEM) and Raman spectroscope. It was found that the type of Si substrate has significant effects on CNT growing characteristics. The possible mechanisms for the observed results are proposed. These findings add significant reference value to select deposition conditions suitable for deposition of CNTs on different types of Si substrate.

On the Practicability of Sensors Based on Surface-Carboxylated Boron—Carbon Nanotubes

2019 ◽  
Vol 64 (1) ◽  
pp. 74-78 ◽  
Author(s):  
N. P. Boroznina ◽  
I. V. Zaporotskova ◽  
S. V. Boroznin ◽  
L. V. Kozhitov ◽  
A. V. Popkova
Keyword(s):  
Carbon Nanotubes ◽  
Boron Carbon

scholarly journals Mechanical Properties of C3N Nanotubes from Molecular Dynamics Simulation Studies

Nanomaterials ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 894 ◽  
Author(s):  
Azam Salmankhani ◽  
Zohre Karami ◽  
Amin Hamed Mashhadzadeh ◽  
Mohammad Reza Saeb ◽  
Vanessa Fierro ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Dynamics Simulation ◽  
Simulation Studies ◽  
Different Types ◽  
Carbon Based Nanomaterials ◽  
C60 Fullerenes ◽  
Carbon Based

Although the properties of carbon nanotubes (CNTs) are very well-known and are still extensively studied, a thorough understanding of other carbon-based nanomaterials such as C3N nanotubes (C3NNTs) is still missing. In this article, we used molecular dynamics simulation to investigate the effects of parameters such as chirality, diameter, number of walls, and temperature on the mechanical properties of C3N nanotubes, C3N nanobuds, and C3NNTs with various kinds of defects. We also modeled and tested the corresponding CNTs to validate the results and understand how replacing one C atom of CNT by one N atom affects the properties. Our results demonstrate that the Young’s modulus of single-walled C3NNTs (SWC3NNTs) increased with diameter, irrespective of the chirality, and was higher in armchair SWC3NNTs than in zigzag ones, unlike double-walled C3NNTs. Besides, adding a second and then a third wall to SWC3NNTs significantly improved their properties. In contrast, the properties of C3N nanobuds produced by attaching an increasing number of C60 fullerenes gradually decreased. Moreover, considering C3NNTs with different types of defects revealed that two-atom vacancies resulted in the greatest reduction of all the properties studied, while Stone–Wales defects had the lowest effect on them.

Multifunctionalized carbon nanotubes as advanced multimodal nanomaterials for biomedical applications

2012 ◽  
Vol 1 (1) ◽  
pp. 17-29 ◽  
Author(s):  
Giuseppe Lamanna ◽  
Alessia Battigelli ◽  
Cécilia Ménard-Moyon ◽  
Alberto Bianco
Keyword(s):  
Carbon Nanotubes ◽  
Diagnostic Imaging ◽  
Biomedical Applications ◽  
Therapeutic Modalities ◽  
Different Types ◽  
Therapeutic Properties ◽  
New Strategies ◽  
Combine Diagnosis

AbstractThe increasing importance of nanotechnology in the field of biomedical applications has encouraged the development of new nanomaterials endowed with multiple functions. Novel nanoscale drug delivery systems with diagnostic, imaging and therapeutic properties hold many promises for the treatment of different types of diseases, including cancer, infection and neurodegenerative syndromes. Functionalized carbon nanotubes (CNTs) are one of the most recent type of nanomaterial developed in biomedicine as they can be designed and imparted with multimodal capabilities. Indeed, the possibility of inserting different functionalities on CNTs is opening the possibility to exploit them on new strategies that combine diagnosis with improved therapeutic efficacies. In this review, we describe the different approaches that have been recently developed to generate multifunctionalized CNTs for biomedical applications. In particular, covalent and non-covalent double and triple functionalization methods are discussed, putting in evidence their use in vitro and in vivo and highlighting the advantages and the drawbacks of these new systems. Preclinical studies have demonstrated that multifunctional CNTs are highly promising when combining diagnostic, imaging and therapeutic modalities.

Random Telegraph Noise in Individual Single-walled Carbon Nanotubes

2004 ◽  
Vol 858 ◽  
Author(s):  
SungHo Jhang ◽  
SangWook Lee ◽  
DongSu Lee ◽  
Eleanor E. B. Campbell ◽  
Siegmar Roth ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Inelastic Scattering ◽  
Gate Voltage ◽  
Single Walled Carbon Nanotubes ◽  
Random Telegraph Noise ◽  
Single Walled Carbon ◽  
Telegraph Noise ◽  
Different Types ◽  
Discrete Values ◽  
Walled Carbon Nanotubes

ABSTRACTThe switching of resistance between two discrete values, known as random telegraph noise (RTN), was observed in individual single-walled carbon nanotubes (SWNTs). The RTN has been studied as a function of bias-voltage and gate-voltage as well as temperature. By analyzing the features of the RTN, we identify three different types of RTN existing in the SWNT related systems. While the RTN can be generated by the various charge traps in the vicinity of the SWNTs, the RTN for metallic SWNTs is mainly due to reversible defect motions between two metastable states, activated by inelastic scattering with electrons.

Comparison of the physical properties of epoxy-based composites filled with different types of carbon nanotubes for aeronautic applications

2012 ◽  
Vol 31 (3) ◽  
pp. 205-218 ◽  
Author(s):  
Biagio De Vivo ◽  
Patrizia Lamberti ◽  
Vincenzo Tucci ◽  
Liberata Guadagno ◽  
Luigi Vertuccio ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Physical Properties ◽  
Different Types
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