Morphology-controlled fabrication of polypyrrole hydrogel for solid-state supercapacitor

Conducting polypyrrole (PPy) hydrogels are considered as one promising class of materials for high performance supercapacitors because they synergize the unique features of conducting polymers and hydrogels with three-dimensional porous network. PPy hydrogels are synthesized in the absence of any additional crosslinkers by using ammonium persulfate as the oxidizing agent and sodium dodecylsulfonate as the surfactant. The as-prepared hydrogels...