The specific surface area and pore size of illustrative electrode material is a promising task to achieve better performance of energy storage devices. In this respect, Mg-substituted Ni_1-xMg_xCo₂O₄ (x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5) samples were synthesized by cost-effective and facile hydrothermal method. As-prepared samples were evaluated as the electrode material for a battery application. The structural and electrochemical characterization analysis has been carried out systematically. Among different samples, NMC50 (x = 0.5) exhibit highest BET surface area of 61 m²g^-1 with a suitable pore volume of 0.3029 cm³g^-1 and narrow pore size distribution of 2–10 nm. It is verified that the special features of the NMC50 including uniformity of the surface texture and porosity bring significant effect on the electrochemical performances. Consequently, the excellent specific capacity of 302 mAhg⁻¹ is observed for NMC50 sample at a current density of 1.1 Ag^-1 and a remarkable cyclic stability of ∼95% is maintained over 2000 continuous charge-discharge cycles. The improved electrochemical performance of NMC50, undoubtedly makes it worth as an excellent electrode material for high-performance energy storage applications.

说明性电极材料的比表面积和孔径是实现储能装置更好性能的有希望的任务。在这方面，通过成本有效且简便的水热法合成了Mg取代的Ni _1-x Mg _x Co ₂ O ₄（x = 0.0、0.1、0.2、0.3、0.4、0.5）样品。评价所制备的样品作为电池应用的电极材料。已经进行了结构和电化学表征分析。在不同的样品中，NMC50（x = 0.5）的BET表面积最高，为61 m ² g ^-1，合适的孔体积为0.3029 cm ³ g ^-1和2-10 nm的窄孔径分布。证实了NMC50的特殊特征，包括表面纹理的均匀性和孔隙率，对电化学性能产生了重大影响。因此，对于NMC50样品，在电流密度为1.1 Ag ^-1时，观察到了302 mAhg ^-1的优异比容量，并且在2000个连续的充放电循环中保持了约95％的出色循环稳定性。NMC50电化学性能的提高无疑使其成为高性能储能应用中极好的电极材料。