In this study, the influence of surfactant on the specific capacitance of nickel oxide nanoparticles (NiO NPs) for supercapacitor applications is studied. We synthesized nickel oxide (NiO) and nickel oxide with sodium dodecyl sulphate (NiO/SDS) NPs using solution combustion synthesis SDS is significant in synthesizing nanomaterials that allow control over particle size, shape and stability. They can enhance the performance of nanoscale materials as energy storage materials by improving their electrochemical activity and charge transfer kinetics. The synthesized material’s performance was further characterized using X-ray diffraction (XRD), UV–vis spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscope, energy dispersive spectroscopy and transmission electron microscopy. The typical crystalline sizes of NiO and NiO/SDS nanomaterials were 28 and 22 nm, respectively. XRD analysis reveals that the structure of NiO is FCC. In addition, the electrochemical performance of the active material was investigated in the electrolyte 6M with potassium hydroxide. Accordingly, specific capacitances of NiO and NiO/SDS are observed as 955 and 1024 F g^–1 at a 2 mV s^–1 scan rate. It was established that NiO/SDS NPs offer considerably superior electrochemical performance due to the surfactant SDS’s inclusion in contrast to NiO NPs.

在本研究中，研究了表面活性剂对用于超级电容器应用的氧化镍纳米颗粒（NiO NP）的比电容的影响。我们使用溶液燃烧合成法合成了氧化镍 (NiO) 和氧化镍与十二烷基硫酸钠 (NiO/SDS) 纳米颗粒。SDS 在合成纳米材料方面具有重要意义，可以控制颗粒尺寸、形状和稳定性。它们可以通过改善纳米材料的电化学活性和电荷转移动力学来增强纳米材料作为储能材料的性能。使用X射线衍射（XRD）、紫外可见光谱、傅里叶变换红外光谱、扫描电子显微镜、能量色散光谱和透射电子显微镜进一步表征了合成材料的性能。 NiO和NiO/SDS纳米材料的典型晶体尺寸分别为28和22 nm。 XRD分析表明NiO的结构为FCC。此外，还研究了活性材料在含有氢氧化钾的6M电解液中的电化学性能。因此，在 2 mV s ^–1扫描速率下观察到 NiO 和 NiO/SDS 的比电容分别为 955 和 1024 F g ^–1。与 NiO NP 相比，由于含有表面活性剂 SDS，NiO/SDS NP 具有相当优越的电化学性能。