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Physical Sciences and Mathematics Commons

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Full-Text Articles in Physical Sciences and Mathematics

Joint Small-Angle X-Ray And Neutron Scattering Data Analysis Of Asymmetric Lipid Vesicles, Barbara Eicher, Frederick A. Heberle, Drew Marquardt, Gerald N. Rechberger, John Katsaras, Georg Pabst Jan 2017

Joint Small-Angle X-Ray And Neutron Scattering Data Analysis Of Asymmetric Lipid Vesicles, Barbara Eicher, Frederick A. Heberle, Drew Marquardt, Gerald N. Rechberger, John Katsaras, Georg Pabst

Chemistry and Biochemistry Publications

Low- and high-resolution models describing the internal transbilayer structure of asymmetric lipid vesicles have been developed. These models can be used for the joint analysis of small-angle neutron and X-ray scattering data. The models describe the underlying scattering length density/electron density profiles either in terms of slabs or through the so-called scattering density profile, previously applied to symmetric lipid vesicles. Both models yield structural details of asymmetric membranes, such as the individual area per lipid, and the hydrocarbon thickness of the inner and outer bilayer leaflets. The scattering density profile model, however, comes at a cost of increased computational effort …


Asymmetric Membranes For High Capacity Lithium-Ion Battery Electrodes, Ian Byrd Jan 2017

Asymmetric Membranes For High Capacity Lithium-Ion Battery Electrodes, Ian Byrd

Electronic Theses and Dissertations

Lithium-Ion Batteries (LIBs) have broad applications such as portable electronic devices, electric vehicles, and for green energy storage from intermittent sources. Current LIBs are limited by their low capacity materials at both the anode and cathode. At the anode, graphite suffers from a low capacity of only 372 mAh g-1. The most commonly used cathode material is LiCoO2 which has a meager capacity of 140 mAh g-1. Thereby the broader applications of LIBs are limited due to these low capacities. It is imperative to develop higher capacity materials to further improve the performance of LIBs. …