Recently, reagent-based electrode materials have received great attention in various applications (e.g., supercapacitors, solar cells, fuel cells, and batteries).
Cobalt-doped Ni3S2 nanorod arrays have been prepared via a hydrothermal method. As a free-standing electrode, the Co-Ni3S2 demonstrates ultrahigh areal capacitance, affording the Co-Ni3S2//FeOOH hybrid supercapacitor a high energy density.
α-NiS/rGO nanohybrids synthesized from water-refluxed Ni-MOF-74/rGO were applied as a high-performance hybrid supercapacitor positive electrode for the first time.
A novel high-energy-density zinc–iodine hybrid supercapacitor was designed via the introduction of a redox iodide ion electrolyte and B, N dual-doped carbon electrode.