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Er-doped α-MnO2 (Er/α-MnO2) microspheres were successfully synthesized via a chemical process. The various techniques were used to investigate the crystal structures, morphologies, valence states, and electrochemical performances of the as-prepared materials. The results showed that Er can be doped into the lattice of α-MnO2 as Er3+ to distinctly affect the structure of α-MnO2. The as-obtained Er(1...
Ni–Al layered double hydroxide with nitrate anions as interlayer building blocks was synthesized by a dual-anion intercalating strategy of hydroxyl and nitrate anions during a facile co-precipitation process. In this case, nitrate anions with low charge densities are capable to expand the interplanar spacing between host layers of Ni–Al layered double hydroxide in the replacement of pristine carbonate...
Li2Fe1-x-yMnxTiySiO4/C (x = 0.05~0.20, y = 0.02~0.08), a porous spherical cathode material for lithium-ion batteries, has been prepared by combining the sol-gel, spray drying, and microwave synthesis method, and co-doped Li2FeSiO4 with the Mn2+ and Ti4+on the iron site. The effects of Mn2+ and Ti4+ co-doping on the crystal structure, microstructure, and electrochemical performance Li2FeSiO4 were investigated...
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