. 2026 Apr 28;16(24):22319–22333. doi: 10.1039/d6ra01528j

Table 2. Comparison of the electrochemical efficiency of various electrode materials with the CaO@AC nanocomposite.

Sr. No.	Electrode material	Specific capacitance	Electrolyte	Capacity retention	Ref.
1	CuO/MPC	616 F g⁻¹ 1 A g⁻¹	2 M KOH	69% at 5000 cycles	75
2	MnO₂/N–AC	424 F g⁻¹ 1 1 A g⁻¹	6 M KOH	85.4% at 10 000 cycles	76
3	Bi₂O₃–GO NC	933 F g⁻¹ 14 A g⁻¹	6 M KOH	80% at 5000 cycles	77
4	AC/NiO	624.20 F g⁻¹ at A g⁻¹	6 M KOH	98% at 1000 cycles	78
5	BiFeO₃-NC	811 F g⁻¹	1 M Na₂SO₄	98% at 1000 cycles	79
6	NiCo₂O₄@NC	2000 F g⁻¹ at 1 A g⁻¹	6 M KOH	79.8% at 5000 cycles	73
7	CaO@AC	230 F g⁻ ¹ at 4 A g⁻ ¹	3 M KOH	99% at 5000 cycles	This work