Showing papers by "Michael W. Ellis published in 2013"
TL;DR: In this article, two models of the air-cathode of a PEM fuel cell were proposed using a two-phase non-equilibrium approach, and experimentally determined porosity, capillary pressure relationships, and permeability of the gas diffusion material in order to demonstrate whether or not the use of these properties enhances the accuracy of PEM Fuel Cell models to predict performance curves and liquid water saturation distribution.
12 citations
TL;DR: In this paper, high-aligned and long anatase TiO2 nanostructures, including unidirectional nanofibers, nanowires in micro-tubes (NW@MT), smooth and porous tubes, were fabricated using a sol-gel process combined with a non-electrospinning Spinneret based Tunable Engineered Parameters (STEP) technique.
Abstract: Highly aligned and long 1D anatase TiO2 nanostructures, including unidirectional nanofibers, nanowires in micro-tubes (NW@MT), smooth and porous tubes, were fabricated using a sol–gel process combined with a non-electrospinning Spinneret based Tunable Engineered Parameters (STEP) technique. The novel surface morphologies and cross-sectional profiles can be directly controlled through selectively tuning the synthesis parameters. When used as a photocatalyst for the degradation of methylene blue, the porous TiO2 tubes demonstrate a higher efficiency compared to the other TiO2 nanostructures. The newly developed technique and the resulting novel morphologies will inspire the design and fabrication of other similar materials for energy and biomedical applications.
4 citations