Ajayan, Pulickel M.2017-07-312017-07-312016-122016-07-27December 2Koizumi, Ryota. "Synthesis and Characterization of Three Dimensional Nanostructures Based on Interconnected Carbon Nanomaterials." (2016) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/95571">https://hdl.handle.net/1911/95571</a>.https://hdl.handle.net/1911/95571This thesis addresses various types of synthetic methods for novel three dimensional nanomaterials and nanostructures based on interconnected carbon nanomaterials using solution chemistry and chemical vapor deposition (CVD) methods. Carbon nanotube (CNT) spheres with porous and scaffold structures consisting of interconnected CNTs were synthesized by solution chemistry followed by freeze-drying, which have high elasticity under nano-indentation tests. This allows the CNT spheres to be potentially applied to mechanical dampers. CNTs were also grown on two dimensional materials--such as reduced graphene oxide (rGO) and hexagonal boron nitride (h-BN)--by CVD methods, which are chemically interconnected. CNTs on rGO and h-BN interconnected structures performed well as electrodes for supercapacitors. Furthermore, unique interconnected flake structures of alpha-phase molybdenum carbide were developed by a CVD method. The molybdenum carbide can be used for a catalyst of hydrogen evolution reaction activity as well as an electrode for supercapacitors.application/pdfengCopyright 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.carbon nanotubesgraphenehybrid structure2D3Dtransition metal carbideThesis2017-07-31