In this paper, some factors affecting the total content of CeO2 and CuO particles in Ni-CeO2-CuO composite plating coating by using electroplating method from nickel sulfate solution are shown. The total content of above regarded particles in the composite plating solution was changed from 2 to 16 g/L. | Some factors affecting on the composition of CeO2 and CuO in Ni-CeO2-CuO composite plating coating Hóa học & Môi trường SOME FACTORS AFFECTING ON THE COMPOSITION OF CeO2 AND CuO IN Ni-CeO2-CuO COMPOSITE PLATING COATING Mai Van Phuoc*, Nguyen Duc Hung Abstract: In this paper, some factors affecting the total content of CeO2 and CuO particles in Ni-CeO2-CuO composite plating coating by using electroplating method from nickel sulfate solution are shown. The total content of above regarded particles in the composite plating solution was changed from 2 to 16 g/L. Some other parameters such as cathode current density and stirring speed were changed from to 4 A/dm2 and from 200 to 1000 rpm, respectively. Results obtained from composition analysis and SEM images of the composite coating showed that the content and distribution of particles on its surface reached the maximum value of % under plating bath condition at current density of 2 A/dm2, 8 g/L content of CeO2 and CuO in the plating solution, stirring speed of 600 rpm and plating time for 15 minutes. Keywords: Nickel composite electroplating; CuO particles; CeO particles; CuO/CeO2 catalyst layer. 1. INTRODUCTION The composite plating layer was created by co-precipitating from the fine solid particles and plating metal. The fine solid particles such as CeO2 and CuO were dispersed in the composite plating solution by stirring or bubbling. The composite plating layers have many advantages such as high hardness, good wear, antifriction and high corrosion resistance, so they were used in many industries. The properties of composite plating layers depended largely on the characteristics and content ratio of the fine solid particles which were formed on the surface of those coating[1-3]. The authors in [4] reported that the catalytic activity of Ni-CeO2-CuO composite plating layer depended largely on the composition of CeO2 and CuO particles from .
