Cover: FIG. 1(a). FE-SEM images of the as-synthesized MnO2 materials under solvothermal conditions and heating at 120 °C for 1 h. [K-J Lin, W-Y Ko, L-J Chen, and Y-H Chen: Solvothermal synthesis of shape-controlled manganese oxide materials and their electrochemical capacitive performances. p. 107].