Aluminum (Al³⁺) doped manganese (Mn)/copper (Cu) ferrite impregnated rGO hybrids are verified for photo-electrocatalytiz water-splitting and super-capacitor electrode applications. Energy band gaps of 2.17 eV (Mn) and 2.25 eV (Cu) confirm photocatalytic activity in the visible-band. High anodic photo-currents around 18–40 and 2–9 mA/cm² (1 V vs. Ag/AgCl) are observed for Mn and Cu systems. Formation of oxygen vacancies due to aluminum doping assisted in efficient charge transfer behavior both at surface and lattice orders due to the structural adjustments. 2-D rGO surface disorders (I_D/I_2D) emphasized the retardation of the charge recombination at the metal-oxide and rGO junction. During visible-light irradiation current densities are spiked by 0.7–9.2 mA/cm² with better redox behavior. The difference in transient currents are observed around 0.1–0.2 mA/cm² at 0 V vs. Ag/AgCl [0.7 mA/cm²: 0.5 V]. Intrinsic photo-current at zero voltage infers built-in potentials at the hybrid and electrolyte interface (Schotty-junction). Impedance study implicates better electron-transfer/ion diffusion characteristics during photon irradiation with a semi-infinite diffusion rate-limiting step. Specific-capacities (3-electrode) are observed around 216 F g⁻¹ (Mn), 142 F g⁻¹ (Cu) with pseudo-capacitance and EDLC characteristics. Li⁺-intercalation results in ultrahigh stability up to 100,000 cycles (t ∼ 69.4 h) at 0.8 V s⁻¹ with a capacity retention of 127%. 2-Electrode performance shows 99.1% capacity retention after 5000 cycles with decrease in the impedance value (1.38 Ω–1.06 Ω), and a maximum areal energy density of 0.54 μWh cm⁻² at power density of 50 μW cm⁻².

铝（Al ³⁺）掺杂的锰（Mn）/铜（Cu）铁氧体浸渍的rGO杂化物已被验证可用于光电催化水分解和超级电容器电极应用。2.17 eV（Mn）和2.25 eV（Cu）的能带隙证实了可见带中的光催化活性。锰和铜系统观察到大约18–40和2–9 mA / cm ^2的高阳极光电流（1 V对Ag / AgCl）。由于结构调整，铝掺杂引起的氧空位的形成有助于表面和晶格有序的有效电荷转移行为。2D RGO表面障碍（I _d / I _2D）强调了金属氧化物和rGO结处电荷复合的阻滞作用。在可见光辐照期间，电流密度峰值提高了0.7–9.2 mA / cm ^2，具有更好的氧化还原性能。相对于Ag / AgCl [0.7 mA / cm ²：0.5 V]，在0 V下观察到的瞬态电流差异约为0.1–0.2 mA / cm ²。零电压时的本征光电流会推断杂化和电解质界面（肖特结）处的内置电势。阻抗研究表明，在光子辐照过程中，通过半无限扩散速率限制步骤可以实现更好的电子传输/离子扩散特性。在216 F g ^-1（Mn），142 F g ^-1附近观察到比容量（3电极）（Cu）具有伪电容和EDLC特性。Li ^+的插入在0.8 V s ^-1下可达到100,000个循环（t〜69.4 h）的超高稳定性，容量保持率为127％。2-电极性能显示5000次循环后容量保持99.1％，阻抗值减小（1.38 Ω–1.06Ω），功率密度为50μWcm ^-2时最大面能量密度为0.54μWhcm ^-2。