Papers:
Chirality Separation of single walled carbon nanotube using microfluidic
Han C-S, Shin D-H, Kim J-E, Shim H-C, Kang J-M, Baek S-H, Korea Insitute of Machinery & Materials, KR
Carbon nanotubes were separated by dielectrophoresis in a micro-fluidics chip, which is easy to scale-up the process. We used the H-filter with micro size channels, which have two inlets and two outlets. In this experiment, [...]
Controlled growth and electrical characterization of bent single-walled carbon nanotubes
The unique electrical and mechanical properties of single-walled carbon nanotubes (SWNTs) make them one of the most promising candidates for next generation nanoelectronics. However, synthesis of complex geometries for as-grown SWNTs still remains a challenging [...]
Transparent film sensor for strain measurement using carbon nanotube networks
Chang W.-S., Song S.-A., Kim J.H., Kim J.W., Kim J.H., Kim J.W., Lee H-C, Han C-S, Korea Institute of Machinery and Materials, KR
Since the carbon nanotube was reported by Iiijima, it has been intensively studied due to their great potential in nanoelectronics and nanomechanical devices. Recently, experimental results show that sing-wall carbon nanotubes (SWCNTs) change their electronic [...]
Design and Fabrication of Electromechanical Tweezers based on CNT Ropes
The aim of this work is to design and fabricate electromechanical tweezers based on CNT ropes. The electromechanical behaviour of such ropes has been studied. The average of Young’s modulus of the rope has been [...]
Synthesis of Single Walled Carbon Nanotubes Using Cobalt Grafted in MCM-41 as Catalyst
In this work (SWCNTs) have been synthesized by high pressure CO decomposition using cobalt grafted in MCM41 by means of grafting method employing cobalt (II) acetylacetonate. The reduction temperature of the metal species of this [...]
Adsorption of Pb2+ using platinum and ruthenium on carbon nanotubes
Recently, remove Pb2+ ions from drinking water has been focused due to its high toxicity to our health, such as nausea, convulsions, coma, renal failure, cancer and subtle effects on metabolism and intelligence. Different approaches [...]
Pt-Ru nanoparticles Supported on MWCNT as PEM fuel cell Electrocatalysts
Valenzuela-Muñiz A.M., Miki-Yoshida M., Botte G.G., Verde Y., Centro de Investigación en Materiales Avanzados S.C., MX
Support plays an important role in catalyst activity. Small particle size in catalysts provides a high contact area between active phase and the reagents, having as consequence a better activity. Multi Wall Carbon Nanotubes (MWCNT) [...]
Electron Hopping Process in SWCNT-Mediated Redox Reaction: An Evidence Observed by DFT Theory
Nongnual T., Choomwattana S., Nokbin S., Khongpracha P., Limtrakul J., Laboratory for Computational and Applied Chemistry, Physical Chemistry Division, TH
The electron hopping in SWCNT-mediated redox reaction of anthraquinonnyl (AQH2-) and 4-arylhydroxyl amine (4AHA-) groups is systematically studied by DFT for the first time. The spin-unrestricted DFT calculations were performed with generalized gradient approximation (GGA) [...]
Modification of photoluminescence characteristics of single wall carbon nanotubes by ZnS intercalation
Commercially available SWNT of >95% purity was purified by high temperature oxidation and acid treatment. By a simple chemical wet process, SWNT samples were intercalated with as-prepared ZnS nanoparticles. The dried samples were dispersed in [...]
Fabrication Processes and Multi-functional Properties of Carbon Nanotube/Inorganic Nanocomposites
Molecular level mixing process was developed for the fabrication of homogeneous carbon nanotube(CNT)/Inorganic nanocomposites instead of the conventional powder mixing process in order to solve the agglomeration of CNTs and weak interfacial bonding between CNTs [...]
Mechanical and Thermal Stability of Carbon Nanotube Junctions
Mechanical and thermal stability of carbon nanotube junctions was studied using molecular dynamics simulation method. Junctions made from armchair and zigzag thin carbon nanotubes were first formed by thermal welding process, then tested under 1D [...]
The role of Stone-Wales defects in the mechanical behavior of a zig-zag SWNT
A (5,0) SWNT with aspect ratio of 10.87 is simulated considering two different potentials, viz. Brenner’s Bond Order potential and Tight Binding potential. At first the Young’s modulus, failure stress and the maximum strain value [...]
Reinforcement of Abrasion Resistance & Heat Buildup for Tire Tread filled with Multi-Wall Carbon Nanotubes (MWCNTs)
A tire tread composites containing SBR/NR rubber blend and varying proportions of multi-wall carbon nanotubes (MWCNTs)/carbon black (CB) including a silane-coupling agent [Bis-(3-triethoxysilylpropyl)tetrasulfane] have been investigated in order to reinforce abrasion resistance
Carbon nanotube-reinforced epoxy nanocomposites for mechanical property improvement
Through proper functionalization of the surface of CNTs, covalent bonds can be formed with the epoxy matrix. In addition, by breaking the van de waals force, CNTs can be well dispersed in the epoxy matrix [...]
Predicting PEMFC Pt Catalyst Durability using DFT
Groves M.N., Chan A., Malardier-Jugroot C., Jugroot M., Malardier-Jugroot C., Royal Military College of Canada, CA
DFT calculations using B3LYP/Lanl2DZ on nitrogen doped graphene and single walled carbon nanotube structures are evaluated using Gaussian03 to measure the binding energy between its surface and a Pt atom. This is to characterize the [...]
Tribological properties of carbon nanotubes as lubricant additives
Tribological performances of innovative lubricant additives based on IF-WS2 and other transition metal dichalcogenides like MoS2 nanoparticles have been widely investigated in recent years. The boundary lubrication regime is the main target for the benefits [...]
Influence of MWNT on the physical properties of polyethylene nanocomposites
Ciambelli P., Sarno M., Neitzert H.C., Nobile M.R., Somma E., Valentino O., University of Salerno, IT
Physical properties of a series of multi-walled carbon nanotube-high density polyethylene (MWNT-HDPE) composites, prepared by melt mixing in a micro-twin screw extruder, were investigated. The effect of MWNT concentration (0.5-7 wt%) and nanotube surface treatment [...]
Preparation and Electrochemical Characterization of Porous SWNT-PPy Nanocomposite Sheets for Supercapacitor Applications
Highly porous sheets comprised of Single Walled Carbon Nanotubes and doped polypyrrole (SWNT-PPy) were prepared by vacuum filtration of SWNT-PPy methanol dispersions. The employed preparation procedure is an extension of conventional bucky-paper fabrication method for [...]
Nanotube Grafting in Porous Solids for High Surface Devices
Biological systems make use of hair and capillary type hierarchical structures to create more surface area in limited space, but very few synthetic materials use this concept. Geometrical calculations show that if hierarchical substrates are [...]
From Electrical to Fuel Powered Artificial Muscles
Kozlov M.E., Oh J., Mirfakhrai T., Zhang M., Fang S., Ferraris J.P., Madden J.D.W., Baughman R.H., University of Texas at Dallas, US
A number of materials ranging from carbon nanotube yarns and sheets to shape memory alloys (SMA) have been explored for the application in the area of artificial muscles (actuators). It was found that if powered [...]
Carbon nanotube/fused silica composite with gradient structure and carbon fiber/ fused silica back reflection layers for microwave absorbing application
Many investigations have been made to the carbon nanotube (CNT)/pure silica (SiO2) composites for their attractive properties. Our primary work demonstrates the decrease of reflection at interface and the improvement of microwave absorbing efficiency in [...]
Journal: TechConnect Briefs
Volume: 3, Nanotechnology 2009: Biofuels, Renewable Energy, Coatings, Fluidics and Compact Modeling
Published: May 3, 2009
Industry sector: Advanced Materials & Manufacturing
Topic: Carbon Nano Structures & Devices
ISBN: 978-1-4398-1784-1