Natural nacre built up with a brick-and-mortar architecture, exhibiting extraordinary strength and toughness, provides an inspiration to construct high-performance multifunctional films for flexible energy storage and portable electrical devices. In the present work, a nacre-mimetic graphene-based film (CNT@PANI/rGO/TA) is fabricated following this idea, wherein electroactive biomass tannin (TA) serves as glue, accompanied by the 'mortar' polyaniline wrapped carbon nanotubes (CNT@PANI), to stick the reduced graphene oxide (rGO) 'bricks' togethe...
