Electrochemical synthesis of polyaniline in the micropores of activated carbon for high-performance electrochemical capacitors.

Polyaniline (PANI) was synthesized exclusively inside the micropores of activated carbon (AC). This nanosized PANI was smaller than 2 nm in diameter and allowed for fast redox reactions, exhibiting superior pseudocapacitance in terms of power and energy densities over the electric double layer capacitance generated inside the micropores.