Three-dimensional bicontinuous nanoporous Au/polyaniline hybrid films for high-performance electrochemical supercapacitors

► Three-dimensional bicontinuous nanoporous Au/polyaniline composite films were made for the electrochemical supercapactiors. ► The nanoporous Au/polyaniline based supercapacitors exhibit ultrahigh volumetric capacitance and energy density. ► The novel nanostructure consisting of polyaniline shells and nanoporous gold cores ensures the impressive capacitive performance.