Sandwich-like MnOx/Ni1-xMnxOy@nanoporous nickel/MnOx architecture with high areal/volumetric capacitance

Direct growth of Ni–Mn–O nanosheets on flexible electrospun carbon nanofibers for high performance supercapacitor applications

Ni–Mn–O nanosheets on flexible electrospun carbon nanofibers have been fabricated as binder-free supercapacitor electrodes, showing good performance for supercapacitor applications.

Ultra-tiny ZnMn2O4 nanoparticles encapsulated in sandwich-like carbon nanosheets for high-performance supercapacitors

Known as an excellent energy storage material, ZnMn₂O₄ has a wide range of applications in supercapacitors. In this report, a special sandwich-like structure of ZnMn₂O₄/C has been first designed and synthesized via a simple hydrothermal method and subsequent calcinations. The designed special sandwich-like structure can benefit ion exchange and remit the probable volume changes during a mass of electrochemical reactions. Furthermore, the porous carbon nanosheets, derived from low-cost glucose, can effectively increase ion flux. Therefore, the novel sandwich-like ZnMn₂O₄ nanoparticles encapsulated in carbon nanosheets can undoubtedly demonstrate an exceptional electrochemical performance for SCs. In this work, the composite material with porous sandwich-like structure exhibits excellent cyclic stability for 5000 cycles (∼5% loss) and high specific capacitance of 1786 F g^-1.

Novel graphene/polyaniline/MnOx3D-hydrogels obtained by controlled morphology of MnOxin the graphene/polyaniline matrix for high performance binder-free supercapacitor electrodes

Graphene/polyaniline/MnO_x(PGM-HCl) hydrogel prepared in an acidic environment using hydrochloric acidviaa simple hydrothermal reaction for high-performance supercapacitors.