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

In this work, peony-like structured MoS₂ with intercalation of polyaniline and crystal defects was prepared by a simple hydrothermal method. The defect-rich structure and broad interlayer distance can effectively provide vast ion transport paths to enhance the ion diffusion rate. PA-MoS₂ can maintain 157.7 mA h g^-1 at 0.1 A g^-1 after 80 cycles and 77.8 mA h g^-1 at 1 A g^-1 after 750 cycles.