Multiple branched α-MnO2 nanofibers: A two-step epitaxial growth

Ultra fine MnO2 nanowire based high performance thin film rechargeable electrodes: Effect of surface morphology, electrolytes and concentrations

“…These octahedra share corners to form 2 Â 2 as well as 1 Â 1 tunnels. The 2 Â 2 tunnels favor the storage of electrolytic cations due to their larger size thereby increasing diffusion [19][20][21] and capacitance. This property makes a-MnO 2 a desirable material for electrode fabrication in storage devices like supercapacitors/alkaline-batteries.…”

Insight into the Growth of Multiple Branched MnOOH Nanorods

“…[26][27][28][29] Recently, much research has been focused on the synthesis of different morphologies and phases of manganese oxides. [30][31][32][33][34][35][36][37][38][39] Among the manganese oxide compounds, manganese oxide hydroxide (MnOOH) is currently arousing much attention, 25,[40][41][42] because it has extraordinary adsorption capacities; it is a useful tool for removing many trace elements from aquatic environments. [43][44][45] Moreover, it can be easily transformed into several different manganese oxide structures, such as Mn 3 O 4 , MnO 2 , and Mn 2 O 3 .…”

Controlled Preparation of MnO2 Hierarchical Hollow Nanostructures and Their Application in Water Treatment

“…[1][2][3][4][5] Up to now, various nanostructures of MnO 2 , such as nanoparticles, [6] nanorods/-belts/-wires/-tubes/-fibers, [7][8][9][10][11] nanosheets, [12] mesoporous/molecular sieves and branched structures, [13,14] urchins/orchids, and other hierarchical structures [15] have been synthesized by different methods.Over the past years, fabrication of hierarchical hollow nanostructures has attracted significant interest because of their widespread potential applications in catalysis, drug delivery, acoustic insulation, photonic crystals, [16][17][18][19][20] and other areas. Until now, the general approach for preparation of hollow structures has involved the use of various removable or sacrificial templates, referred to as "hard", such as monodispersed silica, [21,22] polymer latex spheres [23] and reducing metal nanoparticles, [24] as well as "soft" ones, for example, emulsion droplets/ micelles [25] and gas bubbles.…”