  Hydrogen-based fuels demand high-density storage that can operate under
ambient temperatures. Pd and its alloys are the most investigated metal
hydrides for hydrogen fuel cell applications. This study presented an
alternative Pd alloy for hydrogen storage that can store and release hydrogen
at room temperature. The surface of the most studied Pd (110) was modified with
Au and Rh so that the hydrogen adsorption energy was 0.49 eV and the release
temperature was 365 K. Both values are quite near to the optimum values for the
adsorption energy and release temperature of a hydrogen fuel cell in real-world
usage.
