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This paper describes a high NaOH concentration hydrothermal soft chemical reaction to prepare Na 0.44 MnO 2 nanorods. In this process, Na-birnessite precursors and concentrated NaOH solution are introduced into the hydrothermal reaction. As a result, the hydrothermal time can be significantly shortened from 96 to 24 h, the hydrothermal temperature can be reduced from...
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