Defect engineering of molybdenum disulfide nanosheets boosting super Zn2+ storage from polyaniline intercalation

Layer structured MoS 2 with intercalation of polyaniline and crystal defects was prepared, which delivers high reversible capacity and excellent cycle stability, including 77.8 mA h g −1 at 1 A g −1 and near 100% retention rate after 750 cycles.