New insights into the spectral, thermal and morphological analysis of time dependent structural changes during open end functionalization of single walled carbon nanotubes

2017 ◽  
Vol 41 (20) ◽  
pp. 12159-12171 ◽  
Author(s):  
Rinu Elizabeth Roy ◽  
Bhuvaneswari Soundiraraju ◽  
Deepthi Thomas ◽  
Nisha Balachandran ◽  
Chithra Ambika ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Morphological Analysis ◽  
Structural Changes ◽  
Single Walled Carbon Nanotubes ◽  
Time Dependent ◽  
Time Intervals ◽  
Single Walled Carbon ◽  
Different Types ◽  
Walled Carbon Nanotubes

Acid functionalization inserts different types of functionalities on SWCNTs at different time intervals.

Intercalating 0.3 nm Single-Walled Carbon Nanotubes in Channels of SAPO-11 Crystals: Structural Changes

2017 ◽  
Vol 2 (33) ◽  
pp. 10926-10930
Author(s):  
Jianpang Zhai ◽  
Ruiyang Fang ◽  
Dunliang Jian ◽  
Qiangbing Wang ◽  
Shuangchen Ruan ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Structural Changes ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

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.

scholarly journals Epoxy-based nanocomposites with amine modified single walled carbon nanotubes

e-Polymers ◽  
2010 ◽  
Vol 10 (1) ◽  
Author(s):  
Celina-Maria Petrea ◽  
Corina Andronescu ◽  
Andreea Madalina Pandele ◽  
Sorina Alexandra Garea ◽  
Horia Iovu
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Diglycidyl Ether ◽  
Covalent Attachment ◽  
Single Walled Carbon ◽  
Reinforcing Agent ◽  
Different Types ◽  
Walled Carbon Nanotubes ◽  
Thermal Stability Of ◽  
Long Chain

AbstractCarboxylated Single Walled Carbon Nanotubes (SWNT-COOH) were functionalized using different types of amines as modifier agents to improve the compatibility with the epoxy matrix. Covalent attachment was proved by XPS and Raman spectroscopy. TGA showed that only long chain modifier agents improved the thermal stability of modified SWNTs. Epoxy-based composites were synthesized using diglycidyl ether of bisphenol A (DGEBA) as polymer matrix and modified SWNTs as reinforcing agent.

Structural changes induced in nanocrystals of binary compounds confined within single walled carbon nanotubes: a brief review

2002 ◽  
Vol 330 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Jeremy Sloan ◽  
Steffi Friedrichs ◽  
Rüdiger R. Meyer ◽  
Angus I. Kirkland ◽  
John L. Hutchison ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Structural Changes ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Binary Compounds ◽  
Walled Carbon Nanotubes

Study of the Mechanical Properties of Single-Walled Carbon Nanotubes

2008 ◽  
Author(s):  
Paola Jaramillo ◽  
Haym Benaroya
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Finite Element ◽  
Elastic Properties ◽  
Single Walled Carbon Nanotubes ◽  
Computational Time ◽  
Single Walled Carbon ◽  
Different Types ◽  
Properties Of Materials ◽  
Walled Carbon Nanotubes

Carbon nanotubes are composed of C-C covalent bonds, which are the strongest bonds found in nature. Hence, carbon nanotubes are identified as the “ultimate fiber” due to their great strength in the direction of the nanotube axis and their ability to enhance the elastic properties of materials. The first indications of synthesizing carbon nanotubes date back to 1952. Russian scientists Radushkevich and Lukyanovich [1] were able to produce nanosized hollow carbon filaments. Nevertheless, it was until 1991 that multi-walled carbon nanotubes (MWCNTs) were discovered by Sumio lijima [2, 3] at NEC Corporation Lab, which was followed by his study and synthesis of single-walled carbon nanotubes (SWCNTs) in 1993. Since their discovery, there has been a constant pursuit to understand the properties and identify the optimal applications of these structures. The paper focuses on the importance of carbon nanotubes and their ability to enhance the mechanical properties of other materials due to their unique elastic properties. Additionally, carbon nanotubes can improve the capabilities and properties of other materials, like polymer composite. Currently, there is an ongoing process to accurately understand the fundamental characteristics of these structures, in particular, to develop the governing laws necessary to control, predict, and manipulate these properties. This will eventually have an impact on the bulk properties of materials where carbon nanotubes may be incorporated. The current research focuses on the ability to create simplified models that can accurately predict the response of carbon nanotube structures undergoing different types of loading conditions. In this way, the mechanical characteristics regarding single-walled carbon nanotubes (SWCNTs) through finite element modeling are computed. A simplified finite element model is created in ANSYS for different types of SWCNTs with varying input parameters. An input array for the elastic modulus and load is generated to control the physical effects of these parameters in the nanotube structure. The geometries of the nanotubes are altered through various thicknesses employed for the construction of the C–C bonds. The current work contributes to the generation of different model responses to monitor the stress distribution employing a wide range of parameter values. The ability to introduce variability in the parameters and boundary conditions without altering the capabilities and computational time in the model represents the main contribution of this work.

scholarly journals Structural changes in single-walled carbon nanotubes under non-hydrostatic pressures: x-ray and Raman studies

2003 ◽  
Vol 5 ◽  
pp. 143-143 ◽  
Author(s):  
Sukanta Karmakar ◽  
Surinder M Sharma ◽  
P V Teredesai ◽  
D V S Muthu ◽  
A Govindaraj ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Structural Changes ◽  
Single Walled Carbon Nanotubes ◽  
X Ray ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes
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