Herein, we synthesized 1D bimetallic hydrogen phosphate [Co_xNi_x(HPO₄)] nanorods by using a simple and effective chemical bath deposition method for supercapacitor applications. The prepared Co_xNi_x(HPO₄) was analyzed by Fourier transform infrared (FT-IR) spectroscopy and X-ray diffraction (XRD) pattern. The surface morphology was envisaged by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) methods. The porous nature and surface area of the materials were characterized by nitrogen sorption isotherm and a high specific surface area of 153 m² g⁻¹ was found to be for Co_0.75Ni_0.25(HPO₄). The Co_0.75Ni_0.25(HPO₄) displays a maximum specific capacity of 475 mA h g⁻¹ at 1 A g⁻¹ in a three-electrode configuration using 3 M KOH as the electrolyte. Co_0.75Ni_0.25(HPO₄) exhibits almost 94.8% of its initial specific capacity over 5000 GCD cycles at 10 A g⁻¹. Furthermore, the fabricated asymmetric supercapacitor (ASC) with Co_0.75Ni_0.25(HPO₄) and activated carbon (AC) showed a high specific capacitance of 182.5F g⁻¹ at 0.5 A g⁻¹. The ASC device delivered a maximum energy density of 64.88 Wh kg⁻¹ at a power density of 800 W kg⁻¹.

在此，我们通过使用简单有效的化学浴沉积方法合成了一维双金属磷酸氢盐 [Co _x Ni _x (HPO _{4 )] 纳米棒，用于超级电容器应用。}通过傅里叶变换红外(FT-IR)光谱和X射线衍射(XRD)图案分析制备的Co _x Ni _x (HPO _{4 )。}通过扫描电子显微镜（SEM）和透射电子显微镜（TEM）方法设想表面形态。材料的多孔性质和表面积由氮吸附等温线表征，发现 Co _0.75 Ni具有 153 m ² g ^{-1的高比表面积}_0.25 (HPO ₄ )。Co _0.75 Ni _0.25 (HPO ₄ )在使用 3 M KOH 作为电解质的三电极配置中，在 1 A g ^-1下显示出 475 mAh g ^{-1的最大比容量。}Co _0.75 Ni _0.25 (HPO _{4 ) 在 10 A g} ^-1的 5000 次 GCD 循环中表现出几乎 94.8% 的初始比容量。_{此外，用Co 0.75} Ni _0.25 (HPO ₄ ) 和活性炭(AC)制造的非对称超级电容器(ASC)在0.5 A g ^{-1下显示出182.5F g -1的高比电容。}. ASC 器件在 800 W kg ^-1的功率密度下提供了 64.88 Wh kg ^-1的最大能量密度。