Roya Maboudian (Advisor)

Alloy engineering provides a powerful route to tune the reactivity and selectivity of Pd based hydrogen sensors operating in complex gas environments. Mesoporous SnO2, with its high surface area, interconnected pore network, and abundant adsorption sites, is an ideal support for such engineered nanostructures; these features promote efficient gas diffusion and uniform metal dispersion, thereby amplifying the catalytic and electronic contributions of Pd alloys.

In this work, we integrate composition controlled Pd–Co and Pd–Cu alloy nanostructures with mesoporous SnO2 to...

Concrete is the most widely used engineered material in the world and finds use in nearly every aspect of civil infrastructure. Safety concerns posed by the aging of infrastructure combined with the prevalence of concrete in these systems highlights the demand for a concrete-composite capable of structural health monitoring (SHM) while being low-cost and easily implementable. Embedment of electrically conductive forms of carbon such as graphitic fibers and nanotubes allow for concrete and other cementitious composites to act as self-sensors capable of SHM through a...