Direct chemical synthesis of pristine polypyrrole hydrogels and their derived aerogels for high power density energy storage applications

A direct chemical route for preparing pristine polypyrrole hydrogels and derived aerogels with specific surface areas of up to 425.8 m2 g−1 is presented. The structure of the thick hydrogel electrodes relieves the diffusion limitations of conventional polypyrrole-modified electrodes. The properties can be tuned by altering the synthesis conditions and exchanging the dopant.