Designing of nanoflakes anchored nanotubes-like MnCo₂S₄/halloysite composites for advanced battery like supercapacitor application

In this study, we report a facile chemical synthesis of a novel MnCo₂S₄/halloysite (HNTs) nanoflakes decorated on nanotubes which coated on Ni foam via a screen-printing technique. The MnCo₂S₄ thin films were prepared using a coprecipitation method which demonstrate battery kind of behavior. The MnCo₂S₄/HNTs-based electrode shows a specific capacity of 359 mAh g⁻¹ at 5 mV s⁻¹ with excellent cycling stability. Furthermore, the symmetric system exhibits an outstanding energy density and power density of 6.98 Wh kg⁻¹ and 1976.0 W kg⁻¹, respectively. The results obtained with the MnCo₂S₄/HNTs composite in a symmetric system indicate that this composite material can potentially be used as an alternative electrode material for electrochemical energy storage.