fullerenes carbon nanotubes and carbon nanohorns

... single wall carbon nanotubes Carbon 2002, 40:2043-2061 24 Deng F, Zheng QS, Wang LF: Effects of anisotropy, aspect ratio, and nonstraightness of carbon nanotubes on thermal conductivity of carbon ... acid-treated carbon nanotubes (fMWNTs), even though the functionalization decreases the SSA of the nanotubes This result can be explained by the presence of the functional groups, hydroxyl and carbonyl, ... conductivity of carbon nanotubes and graphene in epoxy nanofluids and nanocomposites Mario Martin-Gallego1, Raquel Verdejo1, Mohamed Khayet2, Jose Maria Ortiz de Zarate2, Mohamed Essalhi2, and Miguel...

Ngày tải lên: 20/06/2014, 23:20

... *1580 cm-1 corresponding to sp2-hybridized carbon and a D band at *1346 cm-1 originating from disordered carbon [17, 18] In addition to the D band, the D0 band as a shoulder of the Nanoscale Res ... those D band, D0 band and G band peaks changed only slightly Additional Raman peaks from the ZnO shells appeared; the relatively strong peaks at 427 and 567 cm-1 correspond to Ehigh and A1 (LO) ... distortion [18] The intensity ratio of the D0 over the G band (ID0 /IG) increases with a decrease in the graphite crystalline domain The D band and D0 band peak are very strong, indicating that the CNTs...

Ngày tải lên: 21/06/2014, 08:20

... natural gas [19] The hydrogen produced is free of carbon monoxide and the other products being tubular carbon Results obtained on the generation of carbon monoxide-free hydrogen during the CVD growth ... observed The carbon yield during the deposition has been calculated as described previously [17] and a dependence of the yield of carbon with the growth temperature has been plotted and shown in ... ‘‘tip-growth’’ and ‘‘root-growth’’ mechanisms, the hydrocarbon gas decomposes on the metal surfaces of the metal particle to release carbon, which dissolve in these metal particles The dissolved carbon...

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 14/11/2014, 12:32

... (Fig 1.1) They can be classified into single-walled carbon nanotubes (SWCNTs), double-walled carbon nanotubes (DWCNTs) and multi-walled carbon nanotubes (MWCNT) according to the number of graphene ... of carbon nanotubes 1.4 Applications of carbon nanotubes 10 1.5 Structure and morphology of graphene 12 1.6 Properties of graphene 14 1.6.1 Electronic and ... of carbon nanotubes and a nonionic surfactant prepared by mechanical grinding 35 3.1 Introduction 35 3.2 Results and discussion 37 3.2.1 Gels of MWCNTs and...

Ngày tải lên: 10/09/2015, 08:35

... on carbon nanotubes and biosensors I want to thank A/P Sheu Fwu-Shan (NUS) and A/P Poenar D Puiu (NTU) for their guidances Special thanks to Dr Eishi Igata (NTU) for sharing his insights and ... turn improves the assay sensitivity, and (III) a single-strand DNA (ssDNA) standard bearing the same sequence and length as of the target gene was created and accurately quantified for use in ... multiple labelling strategies and the types of carrier involved are reviewed in Section 2.1 of Chapter and Section 5.1 of Chapter 1.2 Carbon Nanotubes (CNTs) 1.2.1 Introduction Carbon nanotube (CNT)...

Ngày tải lên: 12/09/2015, 09:28

... bath for 30 and collecting the fragments on holey carbon copper-supported grids Nitrogen adsorption and desorption isotherms were recorded at 77 K using an Accelerated Surface Area and Porosimetry ... radiation (50 kV, 40 mA) and a scan speed of 0.5°/min in h–2h mode The divergence, anti-scatter and receiving slits were fixed at 1o The crystallite size of AlFn(OH)3Àn (n = 1.5, 1.62 and 1.65) was calculated ... open circles – anatase TiO2), and (c) AAO membranes treated by liquid phase deposition for h with Ti/Al ratio of Recently, Shyue and co-workers [18] formed TiO2 nanotubes by coating the walls...

Ngày tải lên: 19/03/2014, 16:48

... nanotube MWCNT A multi-walled carbon nanotube (MWCNT) {7,0}, {10,0}, {13,0} and {16,0} tubes {7,0} Nanotube Bundle A bundle of seven {7,0} single-walled carbon nanotubes (SWCNT) {7,3} Nanotube ... generating a flat graphene sheet and then rolling it into a tube or a cone Two types of nanotubes can be capped with parts of the well-known Buckyball (C60) These are the {5,5} and the {9,0} tubes, which ... {5,5} Tube Carbon Nanotube Armchair structure with Bucky-ball caps Capped {5,5} Tube Carbon Nanotube Armchair structure with Bucky-ball caps Length ~25 Å, Diameter ~6.75 Å Capped {9,0} Tube Carbon...

Ngày tải lên: 04/06/2014, 15:20

... Ni nanotube and nanowire arrays obtained under different conditions: (a), (c) and (e) are top views of samples 1, and respectively; (b), (d) and (f) are side views of the samples 1, and respectively ... electrodeposition process for Ni nanotubes and nanowires Figure 4a provides a clear understanding of the growth mechanism of Ni nanotubes The junction between the electrode surface and the bottom edge of ... process of Ni nanowires begins with the formation of Ni nanotubes Nanotubes were formed at first, and then Ni nanoparticles of the electrode stacked randomly in the tubes, until nanowires were formed...

Ngày tải lên: 21/06/2014, 20:20

... 38 2.2 Carbon Nanotube Morphology and Structure 39 2.3 Synthesis of Carbon Nanotubes .40 2.4 Opening of Carbon Nanotubes .41 2.5 Functionalization of Carbon Nanotubes ... the functionalization and solubilization of carbon nanotubes, their self-assembly, film and fiber formation, and sensor and biosensor preparation Some basics on carbon nanotubes are introduced ... S Berber and D Tomanek, Scrolls and nested tubes in multiwall carbon nanotubes, Carbon 40, 1123–1130 (2002) 15 L Jin, C Bower and O Zhou, Alignment of carbon nanotubes in a polymer matrix by...

Ngày tải lên: 27/06/2014, 10:20

... Li Jing, and Sheng Su in CSMM and Mr Tan Choon Wan from the physics workshop I would also like to thank Prof Kang En-Tang, Dr Liu Yiliang and Dr Liu Gang from Department of Chemical and Biomolecular ... References 18 II Fabrication and characterization 2.1 Introduction 2.2 23 Preparation of aluminum oxide templates, titanium oxide nanotubes and magnetic nanowires and deposition of thin film 2.2.1 ... presence of sulfur and carbon atoms due to the P3HT polymer TEM observations also showed that the pore was filled with the polymer Polymer nanotubes can be obtained after the TiO2 nanotubes were...

Ngày tải lên: 09/09/2015, 18:58

... Chemistry and Pharmacological Potential of Fullerenes and Carbon Nanotubes CARBON MATERIALS: CHEMISTRY AND PHYSICS A comprehensive book series which encompasses the complete coverage of carbon materials ... advances on fullerenes and carbon nanotubes facing the biological-medical horizon, an important and interesting area to the scientific community We will present general overviews of fullerenes and CNTs ... Tsang and co-workers studied the interaction of protein, enzymes and DNA with carbon nanotubes They found that DNA molecules tended to cover the surface of nanotubes and the small proteins and...

Ngày tải lên: 17/02/2014, 05:20

... Chapter Synthesis and Purification of MultiWalled and Single-Walled Carbon Nanotubes M.Yumura Chapter Electron Diffraction and Microscopy of Carbon Nanotubes S Amelinckx, A Lucas and P Lambin ... Structure and Raman Effect of Single-Walled Carbon Nanotubes R Saito, G Dresselhaus and M S Dresselhaus 51 Chapter Behaviour of Single-Walled Carbon Nanotubes in Magnetic Fields H Ajiki and T Ando ... of Multi-Walled and SingleWalled Carbon Nanotubes EELS Study T Hanada, Y Okada and K Yase 29 Chapter Electronic Structure of Single-Walled Carbon Nanotubes K Tanaka, M Okada and Y Huang ...

Ngày tải lên: 05/03/2014, 17:20

... shell and electron trapping by a carbon nanotube core and following reactions where CNT is a carbon nanotube, hVB is a hole in TiO2 valence band, eCB is a electron in TiO2 conduction band, and ... compound), glass- and carbon fibers, ceramic materials, polymers, and activated carbon have been widely used as a catalytic support However, single-walled and multi-walled carbon nanotubes have ... carbon nanotubes was originally performed to open the tips and to fill the cavities of carbon nanotubes [112, 113] In order to covalently decorate the outside surface of multi-walled carbon nanotubes...

Ngày tải lên: 20/03/2014, 13:06

... G-band reflects the degree of graphitization of carbon materials The effect of dc bias voltage on the IG/ID ratio and the FWHM are presented in Figure The line shapes of the G- and D-bands and ... quality of the fit in the low-energy and high-energy tails of the D- and G-bands, respectively, is good The assignment of the peak components of the D- and G-bands is consistent with the works 19730 ... tangential bands for CNT samples grown under negative dc bias voltage were fitted using a Lorentzian doublet near 1596 and 1626 cm-1 while the D-bands were fitted with two Lorentzians at 1182 and 1321...

Ngày tải lên: 06/05/2014, 08:53

... infrared and Ramanactivc phonon modcs and showed for armchair and zig-zag tubes the displacement patterns of the Raman-active phonons 3 Electronic Properties of Carbon Nanotubes Carbon nanotubes ... consistent picture of experimental and thcoreiical studies of carbon nanotubes and offer the reader insight into aspects that are not only applicable to carbon nanotubes but are uscrul physical ... common understanding in solidstate physics because of the one-dimensional nature of carbon nanotubes The two focii of the book, electronic and vihrational properties of carbon nanotubes, rely...

Ngày tải lên: 04/06/2014, 15:05

... very low carbon solubility and negligible carbide formation Zhou et al [16] argue that low carbon solubility results in an increased precipitation rate To grow carbon nanotubes, Lu and Liu [17] ... of carbon nanotubes produced from phenylboronic acid in a MgO matrix The images show a carbon outer shell and a core (nanowire) comprised B, O and Mg Top image-zero loss image The C, B, O and ... http://www.nanoscalereslett.com/content/6/1/303 Page of 49 Rao F, Li T, Wang Y: Growth of “all -carbon single-walled carbon nanotubes from diamonds and fullerenes Carbon 47:353 50 Yu X, Zhang J, Choi W, Choi J-Y, Kim JM, Gan...

Ngày tải lên: 21/06/2014, 04:20

... conceived and designed this work HY and ZZ performed the MD simulations HY, YZ and ZZ collected and analyzed the data All authors discussed the results and edited the manuscript All authors read and ... Carbon Nanotube Nature 2001, 414:188 Holt JK: Carbon Nanotubes and Nanofluidic Transport Adv Mater 2009, 21:3542 Hanaski I, Yonebayashi T, Kawano S: Molecular dynamics of a water jet from a carbon ... Water and Proton Conduction through Carbon Nanotubes as Models for Biological Channels Biophys J 2003, 85:236 Thomas JA, McGaughey AJH: Reassessing Fast Water Transport through Carbon Nanotubes...

Ngày tải lên: 21/06/2014, 06:20

... performance of zigzag and chiral carbon nanotubes Xiaojian Tan1, Huijun Liu*1, Yanwei Wen1, Hongyan Lv1, Lu Pan1, Jing Shi*1, and Xinfeng Tang2 Key Laboratory of Artificial Micro- and Nano-structures ... simulations and nonequilibrium Green's function method, we investigate the thermoelectric properties of a series of zigzag and chiral carbon nanotubes which exhibit interesting diameter and chirality ... dispersion and separation of carbon nanotubes Nat Mater 2003, 2:338-342 Figure Lattice thermal conductivity of tube (4,2) as a function of temperature Results from the Callaway-Holland model and the...

Ngày tải lên: 21/06/2014, 17:20

... data (markers) and model fitting (line) R2 = 0.967 cell from the substrate and initiate cell migration towards the magnetic source Conclusion Carbon nanotubes produced by CCVD of hydrocarbon sources ... Cellpenetrating carbon nanotubes in the delivery of therapeutics Nano Today 2, 38–43 (2007) N.W Shi Kam, M O’Connell, J.A Wisdom, H Dai, Carbon nanotubes as multifunctional biological transporters and nearinfrared ... (CCVD) of hydrocarbon sources on substrates of alumina impregnated with metal catalysts (Fe) [11] This fabrication process produces nanotubes with a diameter of 20–40 nm and a carbon content...

Ngày tải lên: 22/06/2014, 00:20