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Full-Text Articles in Engineering

Kinetic Modeling Of Catalytic Aerogels, Yi Cao Jun 2015

Kinetic Modeling Of Catalytic Aerogels, Yi Cao

Honors Theses

As pollution becomes an increasing concern globally, strict regulations have been set on vehicle pollutant emissions. The three-way catalytic converter is capable of converting toxic emissions such as carbon monoxide, unburned hydrocarbons and nitrogen oxides to less hazardous waste such as carbon dioxide, water, and nitrogen. Current catalysts employ platinum group metals, which are expensive and environmentally damaging to mine. Catalytically-active aerogels such as Co-Al, Cu-Al and V-Al aerogels have shown promise as alternatives to these metals. The work presented here adapts and extends a global kinetic model which predicts the conversion of hydrocarbons and carbon monoxide on platinum catalyst …


Investigation Of Boat Hull Performance With Superhydrophobic Coating, Nolan Sayre Jun 2015

Investigation Of Boat Hull Performance With Superhydrophobic Coating, Nolan Sayre

Honors Theses

Aerogels are a nano-porous material that have the ability to be made chemically superhydrophobic. A durable boat hull coating of superhydrophobic aerogels could form the boundary conditions necessary to reduce drag in water and in turn improve overall boat performance. This project investigated whether a superhydrophobic aerogel coating could effectively reduce skin friction drag on a boat. Various techniques for superhydrophobic surface fabrication were researched and tested with the goal of maximizing the surface water contact angle. It was concluded that Nafion solution is not an effective material to adhere aerogels to a surface. Hydrophobic and non-hydrophobic aerogels were adhered …