Freestanding bacterial cellulose-polypyrrole nanofibres paper electrodes for advanced energy storage devices

Supercapacitors based on freestanding paper electrodes using bacterial cellulose-polypyrrole nanofibers in combination with multi-walled carbon nanotubes via a simple vacuum-filtering method show high performance 2.43 F cm−2 at the mass of 11.23 mg cm−2.102