Thioamidation of Single-Walled Carbon Nanotubes: a New Chemical Functionalization Protocol by the Willgerodt - Kindler Reaction

2009 ◽  
Vol 62 (5) ◽  
pp. 413 ◽  
Author(s):  
Hossein Reza Darabi ◽  
Shabnam Mohandessi ◽  
Kioumars Aghapoor ◽  
Farshid Mohsenzadeh ◽  
Mohammad Hashemi Karouei ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Reactions ◽  
Secondary Amine ◽  
Convenient Method ◽  
Single Walled Carbon Nanotubes ◽  
Covalent Attachment ◽  
Chemical Functionalization ◽  
Single Walled Carbon ◽  
Side Walls ◽  
Walled Carbon Nanotubes

A new and convenient method for covalent attachment of thioamide groups to the side-walls of carbon nanotubes (SWNT) via the Willgerodt–Kindler (WK) reaction is presented. Treating SWNTs with 4-acetylaniline and subsequently with morpholine as a secondary amine and sulfur leads to the thioamidation of SWNTs. This approach paves the way for a new chemical functionalization protocol to enhance the potential of SWNTs for further chemical reactions applicable in various fields.

scholarly journals Preparation of Bulk13C-Enriched Graphene Materials

2010 ◽  
Vol 2010 ◽  
pp. 1-5 ◽  
Author(s):  
Leilei Tian ◽  
Xin Wang ◽  
Li Cao ◽  
Mohammed J. Meziani ◽  
Chang Yi Kong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Convenient Method ◽  
Carbon Nanomaterials ◽  
Arc Discharge ◽  
Single Walled Carbon Nanotubes ◽  
Production Technique ◽  
Graphene Oxides ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes ◽  
Bulk Production

Arc-discharge has been widely used in the bulk production of various carbon nanomaterials, especially for structurally more robust single-walled carbon nanotubes. In this paper, the same bulk-production technique was applied to the synthesis of significantly13C-enriched graphitic materials, from which graphene oxides similarly enriched with13C were prepared and characterized. The results demonstrate that arc-discharge is a convenient method to produce bulk quantities of13C-enriched graphene materials from relatively less expensive precursors (largely amorphous13C powders).

Non-covalent attachment of silver nanoclusters onto single-walled carbon nanotubes with human serum albumin as linking molecule

2015 ◽  
Vol 331 ◽  
pp. 271-277 ◽  
Author(s):  
Andrés Rodríguez-Galván ◽  
Alejandro Heredia ◽  
Oscar Amelines-Sarria ◽  
Margarita Rivera ◽  
Luis A. Medina ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Human Serum Albumin ◽  
Serum Albumin ◽  
Human Serum ◽  
Single Walled Carbon Nanotubes ◽  
Silver Nanoclusters ◽  
Covalent Attachment ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Surface chemical functionalization of single walled carbon nanotubes with a bacteriorhodopsin mutant

Nanoscale ◽  
2012 ◽  
Vol 4 (20) ◽  
pp. 6434 ◽  
Author(s):  
Chiara Ingrosso ◽  
Giuseppe Valerio Bianco ◽  
Patrizia Lopalco ◽  
Michela Tamborra ◽  
Maria Lucia Curri ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Surface Chemical ◽  
Chemical Functionalization ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Functionalization of single-walled carbon nanotubes: Chemistry and characterization

2017 ◽  
Author(s):  
R. Graupner ◽  
F. Hauke
Keyword(s):  
Carbon Nanotubes ◽  
Nir Spectroscopy ◽  
Single Walled Carbon Nanotubes ◽  
Covalent Attachment ◽  
Spectroscopic Techniques ◽  
Force Microscopy ◽  
Single Walled Carbon ◽  
Transmission Electron ◽  
Tunnelling Microscopy ◽  
Walled Carbon Nanotubes

This article examines the chemical functionalization and structural alteration of single-walled carbon nanotubes (SWCNTs). It describes the covalent functionalization of the SWCNT framework that is the covalent attachment of functional entities onto the CNT scaffold. In particular, it considers the chemical modification and reactivity of SWCNTs in the context of the reactivity of graphite and fullerenes. It also discusses the defect and sidewall functionalization of SWCNTs, along with various techniques used in the characterization ofSWCNTs upon functionalization, namely: thermogravimetric analysis, spectroscopic techniques such as UV-Vis-NIR spectroscopy and Raman spectroscopy, and microscopic techniques like transmission electron microscopy, atomic force microscopy and scanning tunnelling microscopy.

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.

Vertical Alignment of Single-Walled Carbon Nanotubes on Chemically Functionalized Silicon Substrates

2002 ◽  
Vol 739 ◽  
Author(s):  
Ha-Jin Lee ◽  
Hyeyoung Park ◽  
Sunyoung Koo ◽  
Haiwon Lee
Keyword(s):  
Carbon Nanotubes ◽  
Reaction Time ◽  
Chemical Reactions ◽  
Chemical Reaction ◽  
Single Walled Carbon Nanotubes ◽  
Vertical Alignment ◽  
Single Walled Carbon ◽  
Functionalized Surfaces ◽  
Bundle Size ◽  
Walled Carbon Nanotubes

ABSTRACTCarbon nanotubes have been widely investigated as an essential component for fabricating nanoelectronic devices and for their numerous applications. We investigated the vertical alignment of single-walled carbon nanotubes (SWNTs) on chemically functionalized Si surfaces using chemical reactions between chemical groups in SWNTs and surfaces. For controlling the high selectivity of a specific chemical reaction, a pre-patterned 3-D nanostructure was used by using AFM anodization lithography for achieving the vertical alignment of SWNTs. To consider the subsequent chemical reaction with chemically modified Si surface, the carboxylic acid groups were converted into acid chloride groups followed by the reaction with chemically functionalized surfaces. The protruded structures on pre-patterned areas strongly suggest the vertically oriented SWNTs, and the distribution of the vertically aligned SWNTs becomes denser and their heights are longer with prolonged reaction time. The aspect ratio of SWNTs aligned on -OH functionalized surface is independent from the reaction time (H/W = 0.2). After random alignment of relatively shorter nanotubes on the substrate, their bundle size increases with increasing the reaction time due to strong van der Waals interaction between the lateral sides of nanotubes described as ‘nucleation growth’. Longer tubes get also adsorbed on the surface by increase in the bundle size and nanotube length, simultaneously. Based on the chemical reactions of the modified SWNTs with functionalized surfaces, selective attachments of SWNTs were carried out onto pre-patterned surfaces. Detailed characterization of aligned SWNTs will be discussed.

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