Science and engineering of energy conversion with coupled mass, energy and momentum conservation, chemical and electrochemical reaction and heat transfer; steady-state and dynamic modeling of fundamental processes that govern energy conversion devices such as fuel cells, electrolyzers, and gas turbine engines; solid state ionics and electrochemistry; fuel processing; synthesis and experimental investigation of novel fuel cell materials sets; analyses of integrated energy systems comprising fuel cells, photovoltaics, fuel processing, gas turbines, and wind turbines; experimental analyses and model validation; renewable energy; life cycle analyses of energy conversion technologies.