Hydrogen (H₂) is supplied to the anode of the fuel cell.
Oxidation Reaction at Anode
At the anode, hydrogen is split into protons (H⁺) and electrons (e⁻) with the help of a catalyst.
The separated electrons travel through an external circuit to the cathode, generating electric current.
Protons (H⁺) move to the cathode through the electrolyte membrane.
Reduction Reaction at Cathode
At the cathode, oxygen (O₂), protons (H⁺), and electrons combine to produce water (H₂O).