以镁铁类水滑石化合物为前驱体,利用选择性物相溶出法制备了2L-型水铁矿.对产物进行了XRD和N2吸附脱附等表征,并研究了产物的电化学性能.结果表明:这种多孔的2L-型水铁矿具有比表面积大、介孔分布均匀等优点;在电压区间1.5~4.2 V,电流密度0.318 mA/cm2的测试条件下,以Mg/Fe=2(物质的量之比)的水滑石为前驱体制得的样品性能最佳,初始放电比容量在203.8 mAh/g,经过14次充放电循环后的放电比容量稳定在100 mAh/g上.
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