Ambient mechanochemical solid-state reactions of carbon nanotubes and their reactions via covalent coordinate bond in solution.

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dc.contributor.advisorAjayan, Pulickelen_US
dc.creatorKabbani, Mohamaden_US
dc.date.accessioned2017-08-02T18:29:39Zen_US
dc.date.available2017-08-02T18:29:39Zen_US
dc.date.created2016-05en_US
dc.date.issued2016-03-29en_US
dc.date.submittedMay 2016en_US
dc.date.updated2017-08-02T18:29:39Zen_US
dc.description.abstractIn its first part, this thesis deals with ambient mechanochemical solid-state reactions of differently functionalized multiple walled carbon nanotubes (MWCNTs) while in its second part it investigates the cross-linking reactions of CNTs in solution via covalent coordinate bonds with transitions metals and carboxylate groups decorating their surfaces. In the first part a series of mechanochemical reactions involving different reactive functionalities on the CNTs such as COOH/OH, COOH/NH2 and COCl/OH were performed. The solid-state unzipping of CNTs leading to graphene formation was confirmed using spectroscopic, thermal and electron microscopy techniques. The non-grapheme products were established using in-situ quadruple mass spectroscopy. The experimental results were confirmed by theoretical simulation calculations using the ‘hot spots’ protocol. The kinetics of the reaction between MWCNT-COOH and MWCNT-OH was monitored using variable temperature Raman spectroscopy. The low activation energy was discussed in terms of hydrogen bond mediated proton transfer mechanism. The second part involves the reaction of MWCNTII COOH with Zn (II) and Cu (II) to form CNT metal-organic frame (MOFs) products that were tested for their effective use as counter-electrodes in dyes sensitized solar cells (DSSC). The thesis concludes by the study of the room temperature reaction between the functionalized graphenes, GOH and G'-COOH followed by the application of compressive loads. The 3D solid graphene pellet product (~0.6gm/cc) is conductive and reflective with a 35MPa ultimate strength as compared to 10MPa strength of graphite electrode (~2.2gm/cc).en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationKabbani, Mohamad. "Ambient mechanochemical solid-state reactions of carbon nanotubes and their reactions via covalent coordinate bond in solution.." (2016) Diss., Rice University. <a href="https://hdl.handle.net/1911/96241">https://hdl.handle.net/1911/96241</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/96241en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectCNT Carbon Nanotubeen_US
dc.subjectSWCNT Single-Walled Carbon Nanotubeen_US
dc.subjectMWCNT Multiple-Walled Carbon Nanotubeen_US
dc.subjectDMF N, N-dimethylformamideen_US
dc.subjectMOF Metal organic frameworksen_US
dc.subjectCVD Carbon Vapor Depositionen_US
dc.subjectMCR Mechanochemical Reactionen_US
dc.subjectDSSC Dye-Sensitized Solar Cellen_US
dc.subjectSEM Scanning Electron Microscopyen_US
dc.subjectTEM Transmission Electron Microscopyen_US
dc.subjectATR-IR Attenuated Total reflectance IR spectroscopyen_US
dc.subjectTGA Thermal Gravimetric Analysisen_US
dc.subjectDTA Differential Thermal Analysisen_US
dc.subjectXPS X-ray Photoelectron Spectroscopyen_US
dc.subjectXRD X-Ray Diffractionen_US
dc.subjectDFT Density Function Theoryen_US
dc.subjectNEB Nudged Elastic Banden_US
dc.subjectReaxFF Reactive Force Fielden_US
dc.titleAmbient mechanochemical solid-state reactions of carbon nanotubes and their reactions via covalent coordinate bond in solution.en_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentMaterials Science and NanoEngineeringen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelDoctoralen_US
thesis.degree.nameDoctor of Philosophyen_US
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