Treatment of the spinel limn2o4 with aqueous acid produces - mno2 . x - ray diffraction and atomic absorption spectroscopy show that - mno2 with lattice constant of 0 . 806nm preserves the structural framework of the limn2o4 and the conversion of limn2o4 to - mno2 results in some contraction of the lattice 利用limn2o4与稀酸作用制得- mno2 ，经xrd 、原子吸收光谱( aas )分析表明- mno2仍然保持了尖晶石的面心立方点阵，晶胞参数0 . 806nm ； limn2o4经过酸处理、锂离子脱出后晶胞体积发生了收缩。
