fullerene carbon nanotube cnt composites

... 5.5.1 5.6 5.6.1 Carbon Nanotube Ceramic Nanocomposites 131 Overview 131 Importance of Ceramic-Matrix Nanocomposites 133 Preparation of Ceramic -CNT Nanocomposites 136 Oxide-Based Nanocomposites 138 ... 8.2.1 8.3 Hydroxyapatite CNT Nanocomposites 218 Potential Applications of CNT Metal Nanocomposites References 224 Index 227 223 IX Preface Carbon nanotubes are nanostructured carbon materials having ... 349 418 Carbonaceous and metal species Oxidation of metal catalyst Amorphous carbon, carbon nanoparticle SWNT Amorphous carbon SWNT Multi-shell carbon Amorphous carbon SWNT Amorphous carbon SWNT...

Ngày tải lên: 04/06/2014, 15:04

... PPy/MWCNT composites with different shell thickness, two PPy/MWCNT composites were prepared at the same mass ratio of pyrrole to MWCNTs (6:4) with (PPy -CNT- 1, curve b) and without (PPyCNT-2, ... adding ethanol, carbon nanotubes are better dispersed and not randomly entangled in the PPy/MWCNT composites by adding ethanol in solution In addition, the surface of the PPy/MWCNT composites appears ... PPy/MWCNT composites: (a) MWCNT-COOH; (b) PPy/MWCNT-1 composite prepared by adding ethanol; (c) PPy/MWCNT-2 composite prepared without ethanol; (d) pure PPy The insets are the TEM images PPy/MWCNT-1...

Ngày tải lên: 21/06/2014, 03:20

... Page of 1011 a) 50 CNTs CNTox CNTox400 CNTox900 10 b) -PVDF 0.1% 0.2% 0.5% 40 105 30 ' Volume Resistivity / m Figure SEM images for the PVDF@ CNTox400 composites (for 0.2% CNTox400): (a) surface ... Volume resistivity of the PVDF /CNT nanocomposites for the different functionalized CNTs; (b) dielectric constant at room temperature and 10 kHz for the PVDF /CNT original composites for a given concentration ... Sandler JKW: Carbon Nanotube/ Nanofibre Polymer Composites, in Processing and Properties of Nanocomposites New York: World Scientific; 2006 Al-Saleh MH, Sundararaj U: ’A review of vapor grown carbon...

Ngày tải lên: 21/06/2014, 04:20

... these measurements (Fig 1) that upon increasing the nanotube concentration in our composites, the nanotubes form ropes and bundles with measured nanotube diameters about 1.4 ± 0.1 nm The effect ... studied ultrafast transient absorption on P3HT /carbon nanotube composites up to 65% SWNT concentration Linear absorption measurements in these composites give an important insight of excitonic ... through nanotubes and P3HT chains, respectively Exciton dissociation is accelerated with the concentration of carbon nanotubes strongly suggesting that dissociation takes place at the nanotube- polymer...

Ngày tải lên: 22/06/2014, 01:20

Ngày tải lên: 23/02/2014, 02:20

... ordered carbon nanotube array formed in this way is shown in Fig 1͑b͒ The resultant carbon nanotube arrays were characterized using SEM Figures 3͑a͒ and 3͑b͒ show SEM micrographs of carbon nanotube ... the mean diameter ͓Fig 3͑a͒, Li et al FIG Highly-ordered carbon nanotube arrays ͑a͒ SEM image showing oblique view of periodic carbon nanotube array The inset at the lower left is an enlarged ... 4͑a͒ shows a TEM image of a carbon nanotube bundle which resulted from completely dissolving the NCA matrix which supported the nanotube array using a chemical etch The nanotubes are straight and...

Ngày tải lên: 19/03/2014, 16:48

... Sample A: SnO2 /MWCNTs type Sample B: SnO2 /MWCNTs type Sample C: WO3 /MWCNTs type Sample D: WO3 /MWCNTs type Sample E: TiO2 /MWCNTs type Sample F: TiO2 /MWCNTs type where MWCNTs type and type ... where carbon nanotubes are not revealed However, regardless the metal oxide employed, carbon nanotubes could be observed in a few regions of the films’ surface (see Fig 2) Therefore, carbon nanotubes ... /p-MWCNTs (n-WO3 /p-MWCNTs) are formed at the interface between tin oxide (tungsten oxide) and carbon nanotubes The existence of such a hetero-structure has been suggested earlier for SnO2 /MWCNT...

Ngày tải lên: 19/03/2014, 16:48

... screen-printed films, (b) dip-coated films (1) As received MWCNT, (2) acid treated MWCNT, (3) TiO2 , (4) TiO2 :MWCNT CNT/ Multiwall carbon nanotubes; A, anatase; B, brookite; R, rutile Discussion ... Photographs of: (a) screen printed TiO2 films (left) and TiO2 /MWCNT composites (rigth); (b) dip-coated TiO2 films (left) and TiO2 –MWCNT composites (right) Please cite this article in press as: M Sánchez, ... Screen-printed TiO2 /CNT Dip-coated TiO2 Dip-coated TiO2 -CNT 1.5 2.0 0.5 1.6 3.0 × 106 4.0 × 101 1.0 × 106 1.6 × 104 cm) same (close to wt%) in TiO2 /MWCNT and TiO2 –MWCNT composite films Fig...

Ngày tải lên: 20/03/2014, 13:07

Ngày tải lên: 24/03/2014, 10:20

... one-sided CNT array TIMs Interface Dry contacts Si CNT Ag [11] Si CNT Cu [12] Si CNT Ni [13] Si CNT Ag [14] Si CNT Al [15] Si CNT Ni [16] SiC CNT Ag [9] Free ends bonded Si CNT/ In–Au [17] Si CNT/ Pd–Al ... of carbon nanotubes (CNTs) For CNTs, theoretical predictions suggest thermal conductivity values as high as 3000 W m−1 K−1 [1] and 6600 W m−1 K−1 [2] for individual multi-wall and single-wall CNTs, ... significant attention has shifted to vertically aligned CNT (VACNT) arrays in the form of films and mats In contrast to the polymer CNT composites, the VACNT arrays are promising TIM structures that have...

Ngày tải lên: 06/05/2014, 08:53

... Plasma-Enhanced CVD of High-Quality Single-Walled Carbon Nanotubes, Carbon, vol 44, pp 10–18, 2006 22 M Terrones, Synthesis, Properties, and Applications of Carbon Nanotubes, Annual Review of Materials Research, ... Oriented Carbon Nanotubes on Silicon, ASME Journal of Heat Transfer, vol 128, pp 1109–1113, 2006 11 X Wang, Z Zhong and J Xu, Noncontact Thermal Characterization of Multiwall Carbon Nanotubes, ... of Carbon Nanotubes for Enhanced Thermal Interface Conductance, Nanotechnology, vol 18, p 385303, 2007 16 B.A Cola, P.B Amama, X Xu and T.S Fisher, The Effects of Growth Temperature on Carbon Nanotube...

Ngày tải lên: 06/05/2014, 08:53

... Single-Walled Carbon Nanotubes,” Carbon, 44, pp 10–18 Amama, P B., Maschmann, M R., Fisher, T S., and Sands, T D., 2006, “Dendrimer-Templated Fe Nanoparticles for the Growth of Single-Wall Carbon Nanotubes ... Discussion Fig SEM images of CNT arrays grown from 806° C to 506° C „a… Vertically oriented CNT array grown at 806° C „b… Higher magnification image of CNTs grown at 806° C „c… CNTs grown at 737° C The ... vertically oriented CNTs „scale bar is ␮m… „d… CNTs grown at 707° C The inset contains a lower magnification image „scale bar is ␮m… „e… CNTs grown at 641° C „inset scale bar is ␮m… „f… CNTs grown at...

Ngày tải lên: 06/05/2014, 08:53

... one-sided CNT interface ͑Si -CNT- glass͒ Tong et al.17 also reported component resistances of the onesided CNT interface ͑Si -CNT and CNT- glass͒ They concluded that the interface between the free CNT ... sheet, RSi–Cu ͑d͒ The CNT arrays are considered as layers in the PA model; therefore, the component resistances RSi CNT, RCNT -CNT, and RCNT–Cu and the thermal diffusivity of each CNT array can be ... Two-sided CNT interface results Fitted parameters Measured values at 0.172 MPa Measured values at 0.241 MPa RSi -CNT ͑mm2 K / W͒ RCNT -CNT ͑mm2 K / W͒ RCNT-Cu ͑mm2 K / W͒ Rtotal͑RSi–Cu͒ ͑mm2 K / W͒a ␣CNTs-on-Si...

Ngày tải lên: 06/05/2014, 08:53

... is defined as Rbulk ¼ RSi CNT þ RCNT þ RCNTÀAg (1) where RCNT is the resistance of the CNT array and RSi -CNT and RCNT-Ag are the contact resistances at the Si -CNT and CNT- Ag interfaces, respectively ... for h in air The Si/ CNT/ Ag foil structure consisted of Si /CNT and Ag while the Si/ CNT/ CNT/Cu structure comprised of Si /CNT and CNT/ Cu Figure contains an FESEM image of the CNT array after thermolysis ... for the Si /CNT/ Ag and Si /CNT/ CNT/Cu samples The resolved component resistances for the second Si /CNT/ Ag are tabulated in Table Within the temperature range, the Si /CNT/ Ag and Si /CNT/ CNT/ Cu structures...

Ngày tải lên: 06/05/2014, 08:54

... one-sided CNT interface ͑Si -CNT- glass͒ Tong et al.17 also reported component resistances of the onesided CNT interface ͑Si -CNT and CNT- glass͒ They concluded that the interface between the free CNT ... sheet, RSi–Cu ͑d͒ The CNT arrays are considered as layers in the PA model; therefore, the component resistances RSi CNT, RCNT -CNT, and RCNT–Cu and the thermal diffusivity of each CNT array can be ... Two-sided CNT interface results Fitted parameters Measured values at 0.172 MPa Measured values at 0.241 MPa RSi -CNT ͑mm2 K / W͒ RCNT -CNT ͑mm2 K / W͒ RCNT-Cu ͑mm2 K / W͒ Rtotal͑RSi–Cu͒ ͑mm2 K / W͒a ␣CNTs-on-Si...

Ngày tải lên: 06/05/2014, 08:54

... is defined as Rbulk ¼ RSi CNT þ RCNT þ RCNTÀAg (1) where RCNT is the resistance of the CNT array and RSi -CNT and RCNT-Ag are the contact resistances at the Si -CNT and CNT- Ag interfaces, respectively ... for h in air The Si/ CNT/ Ag foil structure consisted of Si /CNT and Ag while the Si/ CNT/ CNT/Cu structure comprised of Si /CNT and CNT/ Cu Figure contains an FESEM image of the CNT array after thermolysis ... for the Si /CNT/ Ag and Si /CNT/ CNT/Cu samples The resolved component resistances for the second Si /CNT/ Ag are tabulated in Table Within the temperature range, the Si /CNT/ Ag and Si /CNT/ CNT/ Cu structures...

Ngày tải lên: 06/05/2014, 08:58

... one-sided CNT interface ͑Si -CNT- glass͒ Tong et al.17 also reported component resistances of the onesided CNT interface ͑Si -CNT and CNT- glass͒ They concluded that the interface between the free CNT ... sheet, RSi–Cu ͑d͒ The CNT arrays are considered as layers in the PA model; therefore, the component resistances RSi CNT, RCNT -CNT, and RCNT–Cu and the thermal diffusivity of each CNT array can be ... Two-sided CNT interface results Fitted parameters Measured values at 0.172 MPa Measured values at 0.241 MPa RSi -CNT ͑mm2 K / W͒ RCNT -CNT ͑mm2 K / W͒ RCNT-Cu ͑mm2 K / W͒ Rtotal͑RSi–Cu͒ ͑mm2 K / W͒a ␣CNTs-on-Si...

Ngày tải lên: 06/05/2014, 08:58

... nucleation of Bi2Te3 on individual MWCNTs, b) Bi2Te3 CNT array coated metallic surfaces for thermofilm /CNT array interface, and a c) magnified view of the Bi2Te3 film /CNT array interface mechanically ... peaks correspond to Bi2Te3 except MWCNT 002, MWCNT material on the relative thermomechanical 101, and Si 400 peaks, labeled accordingly robustness of the TE /CNT/ M heterostructure, the temperature ... observations are presented in CNT array The X-ray diffraction patterns confirm the presence of Table For samples without a CNT interlayer, TE films polycrystalline Bi2Te3 film on the CNT array, and the crystalline...

Ngày tải lên: 06/05/2014, 08:58

... gate is best structure • CNT must be kept clean for optimal CNTFET performance • Top-gate CNT- FET biosensor – CNT kept clean because CNT is covered with SiNx 27 Top-gate CNT- FET illustration Resin ... (Au/Ti) metal cat (Co) Carbon nanotube 28 Top-gate structure prevents adsorbing contamination on CNT Water, oxygen and other contaminates cannot adsorb on CNTs 29 Top-gate CNT- FET has high stability ... Position of CNT biosensors in CNT applications Mass-production method of CNTs must be established Hydrogen storage Catalyst Electrode of Fuel cell Capacitor Filed emission DDS FET STM tip CNTs not...

Ngày tải lên: 13/05/2014, 14:00

... structures that carbon The Physics of Carbon Nanotube Devices Figure 1.3 Forms of nanotubes: (a) scanning tunneling microscope image of a single wall carbon nanotube (b) A bundle of single wall nanotubes ... topics that may interest the reader include the synthesis of carbon nanotubes, assembly of nanotube devices, the use of carbon nanotubes in composites, thermal properties, and high-frequency applications ... the new physics of carbon nanotube devices The intent is not to xi xii Preface only discuss the fundamental physical aspects of carbon nanotubes or to give an overview of carbon nanotube devices,...

Ngày tải lên: 04/06/2014, 14:42