A precursor route to synthesize mesoporous γ-MnO2 microcrystals and their applications in lithium battery and water treatment

Capacitive properties of PANI/MnO2 synthesized via simultaneous-oxidation route

“…[17] As is wellknown that MnO 2 can form several kinds of polymorphs such as ␣-, ␤-, ␥-and ␦-types according to the different linkage patterns of basic unit [MnO 6 ] octahedral. Among all the structures, ␥-MnO 2 which is considered to be an intergrowth of ramsdellite (1 × 2 tunnels) and pyrolusite (1 × 1 tunnels) have wide applications in electrochemical supercapacitors [27], lithium ion battery [28,29] and dry-cell batteries [30]. In previous studies, PANI in its emeraldine salt form shows characteristic peak at 20.8 • .…”

Hierarchical architectured MnCO3 microdumbbells: facile synthesis and enhanced performance for lithium ion batteries

“…3 In this respect, manifold anode materials, such as Si, transition-metal oxides, and their analogues, have been explored as an essential constituent in LIBs. [8][9][10][11] In general, the shape guidingmechanism results in MnCO 3 being an unavoidable hot topic. In particular, MnCO 3 materials are widely used as sacrificial templates to synthesize the respective derivative metal oxides via thermal conversion with the target morphologies.…”

Determination of Cobalt in Seawater Using Neutron Activation Analysis after Preconcentration by Adsorption ontoγ-MnO2Nanomaterial

“…Among the nanomaterials, the manganese oxides with various types of crystalline structures, such as -, -, -MnO 2 , have been extensively studied owing to their structural varieties and excellent chemical characteristics. As a result, they have been applied to different areas such as batteries, molecular sieves, catalysts, and adsorbents [16,17]. However, the use ofMnO 2 nanomaterial as a solid phase for the preconcentration of cobalt from seawater has still been rarely studied.…”