Precious Metal Elements

Principles of Proton-Exchange Membrane Fuel Cells and Role of Platinum

Platinum is used in fuel cells, the environmentally friendly next-generation energy supply system currently in the spotlight.

Hydrogen and oxygen are reacted with separate platinum catalyst electrodes to generate electrical energy. Platinum plays an important role in this clean energy generation system, with no carbon dioxide or air pollutants being generated, and only water being discharged.

Platinum catalyst is applied to fuel cell electrodes to promote reaction. Electrons (e-) at the cathode pass through a circuit to produce electrical energy.