Better than platinum? Fuel cells energized by enzymes

ihydrogen (H 2 ) gas has the potential to be a limitless source of clean energy if simple and efficient methods of production and utilization can be developed.In that regard, using H 2 to store electrical energy by means of an electrochemical cell and returning that energy by means of a fuel cell would be among the cleanest and most efficient energy methodologies.This electrochemical apparatus needs to employ robust catalysts for proton reduction and dihydrogen oxidation.In a nonbiological setting, these processes are most readily accomplished at a platinum electrode.Unfortunately, platinum is resource-limited, expensive, and irreversibly inactivated by common trace impurities in H 2 gas, such as H 2 S and CO.