Figure 4
From: Nanostrucutured MnO2-TiN nanotube arrays for advanced supercapacitor electrode material

Schematic diagrams of δ-MnO2 and α-MnO2 crystal structure.
From: Nanostrucutured MnO2-TiN nanotube arrays for advanced supercapacitor electrode material

Schematic diagrams of δ-MnO2 and α-MnO2 crystal structure.