Fuel Cell

• Fuel Cell: In this electrochemical cell, fuel loses electrons at one porous electrode while oxygen gains electrons at the alternate porous electrode.

• The product of a fuel cell is water:

  $2H_2\ +$$\ O_2\ =$$\ 2H_2O$
• Fuel cell reaction at anode:

  $2H_2\ =$$\ 4H+$$\ +$$4e-$
• Fuel cell reaction at cathode:

  $4H+$$\ +$$\ O_2\ +$$\ 4e-\ =$$\ 2H_2O$
• The flow of the electrons, through the electric circuit, from the cathode to the anode generates a current. This cell is used to drive electric motors in the automotive industry.