Etching-induced electronic modulation in Prussian blue analogue-derived metal sulfides for advanced hybrid supercapacitors

Key Points

• The aim is to explore the energy storage capabilities of a hybrid supercapacitor using metal sulfides derived from Ni-FePBA.
• Used Ni-FePBA as a precursor to synthesize metal sulfides.
• Characterized the resulting E9-Ni-FePBA-S.
• Evaluated the performance of E9-Ni-FePBA-S in a hybrid supercapacitor configuration.
• The E9-Ni-FePBA-S//AC hybrid supercapacitor achieved an energy density of 31.4 Wh kg−1.
• Demonstrated power density of 1.6 kW kg−1.