Why platinum-based fuel cells?
In a platinum-based fuel cell, electricity is generated through an electrochemical reaction by combining hydrogen and oxygen, with heat and water as the only by-products. Molecules of hydrogen and oxygen react and combine using a proton exchange membrane (PEM) which is coated with a platinum catalyst, and there is no combustion. Platinum is the only element that can effectively perform this function within a PEM.
In many cases, those looking for fossil fuel-free transport solutions with zero emissions (other than water) are increasingly recognising that platinum-based hydrogen fuel cells are the technology that best meets their needs. Fuel cells offer the range and power output needed by vehicles like buses that batteries alone cannot offer.
Of course, fuel cells share many of the characteristics of a battery: silent operation, no moving parts and an electrochemical reaction to generate power. However, unlike a battery, fuel cells do not necessitate lengthy recharging stops to ‘refuel’, a further advantage.