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Full-Text Articles in Physics
Tunable Controlled Release Of Molecular Species From Halloysite Nanotubes, Divya Narayan Elumalai
Tunable Controlled Release Of Molecular Species From Halloysite Nanotubes, Divya Narayan Elumalai
Doctoral Dissertations
Encouraged by potential applications in rust coatings, self-healing composites, selective delivery of drugs, and catalysis, the transport of molecular species through Halloysite nanotubes (HNTs), specifically the storage and controlled release of these molecules, has attracted strong interest in recent years. HNTs are a naturally occurring biocompatible nanomaterial that are abundantly and readily available. They are alumosilicate based tubular clay nanotubes with an inner lumen of 15 nm and a length of 600-900 nm. The size of the inner lumen of HNTs may be adjusted by etching. The lumen can be loaded with functional agents like antioxidants, anticorrosion agents, flame-retardant agents, …
Understanding Electrical Conduction In Lithium Ion Batteries Through Multi-Scale Modeling, Jie Pan
Understanding Electrical Conduction In Lithium Ion Batteries Through Multi-Scale Modeling, Jie Pan
Theses and Dissertations--Chemical and Materials Engineering
Silicon (Si) has been considered as a promising negative electrode material for lithium ion batteries (LIBs) because of its high theoretical capacity, low discharge voltage, and low cost. However, the utilization of Si electrode has been hampered by problems such as slow ionic transport, large stress/strain generation, and unstable solid electrolyte interphase (SEI). These problems severely influence the performance and cycle life of Si electrodes. In general, ionic conduction determines the rate performance of the electrode, while electron leakage through the SEI causes electrolyte decomposition and, thus, causes capacity loss. The goal of this thesis research is to design Si …