Modeling and simulation of buckling of pristine and defective carbon nanotubes
Modeling and simulation of buckling of pristine and defective carbon nanotubes
... properties of carbon nanotubes 1.1.3 Applications of carbon nanotubes 1.2 Motivation 1.3 Objective and scope of work 11 1.4 Layout of the thesis 13 CHAPTER 2: LITERATURE REVIEW 2.1 Buckling of CNTs ... in armchair and zigzag CNTs 146 Figure 6.7: Effect of temperature on pristine and defective CNTs 147 Figure 6.8: Buckling mode shapes of pristine and defective SWNTs 152 Figure 6.9: Buckling mode ... Effect of volume fraction 116 5.5.4 Buckling of embedded CNTs of various diameters 121 5.5.5 Buckling of embedded CNTs of various lengths 125 5.6 Concluding remarks CHAPTER 6: BUCKLING OF DEFECTIVE...
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báo cáo hóa học:" Optimizing the thermoelectric performance of zigzag and chiral carbon nanotubes" pdf
... out the NEGF and NEMD calculations HJL participated in the design of the study and discussions of the theoretical results YWW, HYL, and LP participated in the implementation of the LAMMPS and ... method to study the thermoelectric properties of a serial of CNTs with different diameters and chiralities They are the zigzag (7,0), (8,0), (10,0), (11,0), (13,0), (14,0) and the chiral (4,2),(5,1), ... electric power, thermoelectric material is expected to be one of the promising candidates to meet the challenge of energy crisis The performance of a thermoelectric material is quantified by the dimensionless...
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sensor response of sol–gel multiwalled carbon nanotubes-tio2 composites
... gas sensor for monitoring ammonia, Mater Char 58 (2007) 680–684 Please cite this article in press as: M Sánchez, M.E Rincón, Sensor response of sol–gel multiwalled carbon nanotubes-TiO2 composites ... doctorate degree under Prof Rincón’s surpevision Please cite this article in press as: M Sánchez, M.E Rincón, Sensor response of sol–gel multiwalled carbon nanotubes-TiO2 composites deposited by ... inset Please cite this article in press as: M Sánchez, M.E Rincón, Sensor response of sol–gel multiwalled carbon nanotubes-TiO2 composites deposited by screen-printing and dip-coating techniques,...
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Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 1
... Background 1. 2 Carbon Nanotubes 1. 2 .1 Discovery of Carbon Nanotubes 1. 2.2 Bonding Structures of Carbon Nanotubes 1. 2.3 Properties of Carbon Nanotubes 1. 2.4 Applications of Carbon Nanotubes 2 13 1. 3 ... Nanostructures 10 6 5.2.5 FE Study of Tungsten Oxides Coated CNT Nanostructures 11 0 5.2.6 Summary 11 4 References 11 5 CHAPTER FIELD EMISSION STUDY OF HYDROGENATED TETRAHEDRAL AMORPHOUS CARBON COATED CARBON NANOTUBES ... CHAPTER FIELD EMISSION CHARACTERISTICS OF METAL OXIDE ULTRATHIN FILMS COATED CARBON NANOTUBES CORE- SHELL NANOSTRUCTURES 72 iv Table of Contents 5 .1 FE Study of Molybdenum Oxide Thin Films Coated...
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Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 2
... [9-13] 22 Chapter Physics of Field Emission -4 ln ( J/E2) Current density, J ( mA/cm2) -2 -6 -8 -10 - 12 -14 0 .2 0.3 0.4 0.5 1/E 0 Applied electric field, E ( V/µm) Fig 2. 2 The electron emission ... Proc 91, 429 (20 08) 29 Chapter Physics of Field Emission 20 C S Chang, S Chattopadhyay, L C Chen, K H Chen, C W Chen, Y F Chen, R Collazo, and Z Sitar, Phys Rev B 68, 125 322 (20 03) 21 L Diederich, ... 418, 21 9 (1998) 22 S R P Silva, J D Carey, X Guo, W M Tsang, and C H P Poa, Thin Solid Films 4 82, 79 (20 05) 23 H Yamaguchi, T Yamada, M Kudo, Y Takakuwa, and K Okano, Appl Phys Lett 88, 20 2101 (20 06)...
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Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 3
... the acquisition time per spectrum of ~150 s 3. 4 Field Emission Apparatus Field emission testing of the samples was carried out with a custom-designed field emission system, using parallel plate ... ionization and emission of a core (inner shell) electron whereas in UPS the photon interacts with valence levels of the molecule or solid, leading to ionization by removal of one of these valence ... hυ − EB − φ (3. 2) where hυ is the energy of the photon and Ø is the work function of the spectrometer 44 Chapter Experimental Techniques Fig 3. 2 Schematic illustration of XPS photoemission process...
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Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 4
... heater Fig 4. 1 Schematic setup of the PECVD system used 55 Chapter Synthesis of Vertically-Aligned Carbon Nanotubes 4. 3 Results and Discussion 4. 3.1 Characterization of the As-Grown Carbon Nanotubes ... covered with amorphous carbon, which is the product of the thermal deposition of hydrocarbon [3] 52 Chapter Synthesis of Vertically-Aligned Carbon Nanotubes In terms of other CNT growth approaches, ... the hollow part of Fig 4. 4 TEM images of the as-grown CNTs obtained with Fe catalyst 58 Chapter Synthesis of Vertically-Aligned Carbon Nanotubes the nanotube that a few layers of graphene sheets...
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Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 6a
... these core- shell nanostructures, consisting of core CNTs and shell DLC films The average shell films 125 Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon Coated Carbon Nanotubes ... multilayer thin film structures or core- shell structures, the FE 132 Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon Coated Carbon Nanotubes Core- Shell Nanostructures properties ... 6.5 Carbon 1s core level XPS spectrum confirms high sp3 content of the DLC films 127 Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon Coated Carbon Nanotubes Core- Shell...
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Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 6b
... Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon Coated Carbon Nanotubes Core- Shell Nanostructures with the increase of ambient temperature during emission process, ... average diameter of these nanotubes is comparable to that 136 Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon Coated Carbon Nanotubes Core- Shell Nanostructures Fig 6.10 ... C ta-C coated CNTs with a 30 s hydrogenation treatment C 137 Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon Coated Carbon Nanotubes Core- Shell Nanostructures of the...
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Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 6c
... Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon Coated Carbon Nanotubes Core- Shell Nanostructures Fig 6.15 Carbon 1s core level XPS spectra of the (a) 50 nm ta C coated ... trend of the threshold fields exhibited by these samples during FE process, 142 Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon Coated Carbon Nanotubes Core- Shell Nanostructures ... C 146 Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon Coated Carbon Nanotubes Core- Shell Nanostructures height ratios of the pristine CNTs, 100 nm ta-C coated CNTs and...
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Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 7
... molybdenum oxide -coated carbon nanotubes core- shell nanostructures” Journal of Materials Science 46, 4858 (2011) Jun Yu, and Daniel H C Chua “Enhanced field emission properties of hydrogenated ... H C Chua “Hydrogenation and its effects on the field emission characteristics of tetrahedral amorphous carbon coated carbon nanotubes Journal of Physical Chemistry C (Accepted) Jun Yu, Kuan ... List of Publications J Yu, C H Sow, Andrew T S Wee, and Daniel H C Chua “Enhanced field emission of vertically-aligned core- shell carbon nanotubes with molybdenum oxide encapsulation” Journal of...
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Modeling and Simulation of Microbial Depolymerization Processes of Xenobiotic Polymers
... 12 Modeling and Simulation of Microbial Depolymerization Processes of Xenobiotic Polymers 12.4.2 Analysis of Enzymatic PLA Depolymerization The experimental and analytical study of endogenous depolymerization ... HPLC profiles of PEG before and after the cultivation of the microbial consortium E-1 [11, 12] 289 290 12 Modeling and Simulation of Microbial Depolymerization Processes of Xenobiotic Polymers Solution ... 12 Modeling and Simulation of Microbial Depolymerization Processes of Xenobiotic Polymers 12 13 14 15 16 17 of xenobiotic polymers with experimental data introduced into analysis Proceedings of...
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Case Study in Financial Modeling and Simulation of a Forestry Investment potx
... watering Maintenance:- weed control, fertilizing, pruning and thinning, fire and pest protection Inflows:wood; commercial thinning, final harvest non-wood; flora gathering, recreation, land ... Evaluation Criteria The Land Expectation Value(LEV) model is applied in preference to the NPV model Key Parameters in Forestry Models Establishment:- land, land preparation, plant stock, planting, ... usage and fashion changes Sovereign risk: regulatory changes, taxation changes, uncertain harvest rights Predicting Cash Flows The key growth indicator is the Mean Annual Increment 20 Years of...
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