Energy is trapped in the chemical bonds of nutrient molecules. How is it then made usable for cellular functions and biosynthetic processes?

excess water can flood the cathode of the fuel cell diminishing fuel cell performance limiting the power output. A schematic of a polymer electrolyte membrane hydrogen-oxygen fuel cell is shown in ...

Various types of fuel cells exist, but the one automakers are primarily focusing on for fuel cell cars is one that relies on a proton-exchange membrane, or PEM. In the generic PEM fuel cell ...

A schematic of the propulsion system. Airbus The aircraft’s four propellers each have a fuel-cell stack powering an electric motor. Airbus has completed a similar 1.2-megawatt system ...