In this work, micro plasma-induced non-equilibrium liquid chemistry was utilized to synthesize and controlled formation of gold metallic nanoparticles (Au MNPs) by governing the concentration of (HAuCl₄). These new approaches based on both plasma and liquid electrolytes contain charged species, and the interactions between the two phases represent a unique combination of physics, chemistry, and materials science. Continuous and stable DC glow discharge was done in home–made cavity to synthesize the definite sizes of (Au MNPs) by means of (3 kV) discharge voltage and (2 mA) discharge current for a period of (7 min) in aqueous solution of HAuCl₄ with four different concentrations of about 1 mM, 5 mM, 10 mM and 20 mM at room temperature. The atmospheric pressure plasma discharge between stainless steel capillary tube cathode electrode over the (HAuCl₄) solution and platinum plate as an anode dipped in solution for rapid formation of colloidal Au MNPs. Morphology aspects of the synthesized Au MNPs layer were studied by examining the (FE-SEM), HR-TEM images and X-ray difraction (XRD) pattern. Optical features of (Au MNPs) were considered via a UV–Vis beam spectrophotometer. These measurements showed that Au MNPs were organized by governing the concentration of HAuCl₄, and uniform Au MNPs with specific exclusive sizes were acquired. Grain size, specific surface area and optical stability of Au MNPs strongly be affected by the HAuCl₄ concentrations.

在这项工作中，利用微等离子体诱导的非平衡液相化学通过控制（HAuCl ₄）的浓度来合成和控制金金属纳米颗粒（Au MNPs）的形成。这些基于等离子体和液体电解质的新方法都包含带电物质，并且两相之间的相互作用代表了物理，化学和材料科学的独特结合。在自制腔体中进行连续稳定的直流辉光放电，以在水溶液中（7分钟）的（3 kV）放电电压和（2 mA）放电电流合成确定尺寸的（Au MNP）的HAuCl ₄在室温下具有大约1 mM，5 mM，10 mM和20 mM的四种不同浓度。（HAuCl ₄）溶液上方的不锈钢毛细管阴极电极与浸入溶液中的阳极铂板之间的大气压等离子体放电，用于快速形成胶体Au MNP。通过检查（FE-SEM），HR-TEM图像和X射线衍射（XRD）图案，研究了合成的Au MNPs层的形貌方面。（Au MNPs）的光学特征是通过紫外可见分光光度计考虑的。这些测量表明Au MNP通过控制HAuCl ₄的浓度来组织，并获得具有特定排他尺寸的均匀Au MNP。Au MNP的粒度，比表面积和光学稳定性受HAuCl ₄浓度的强烈影响。