https://scholars.lib.ntu.edu.tw/handle/123456789/74256
標題: | Electrokinetic Properties of Nanosized SiC Particles in Highly Concentrated Electrolyte Solutions | 作者: | Wang, Sheng-Chang Wei, Wen-Cheng J. |
公開日期: | 2001 | 卷: | 84 | 期: | 7 | 起(迄)頁: | 1411-1414 | 來源出版物: | Journal of the American Ceramic Society | 摘要: | In this research, the electrokinetic behavior and stability of nanosized SiC particles suspended in various electroplating solutions were studied. Analyses were performed using electrophoretic mobility photometry and streaming current (SC) techniques. The electrolytes included NiCl2, Ni(SO3NH2)2, and Na3Co(NO2)6, which are currently used in composite plating solutions with concentrations as high as 0.5M. The results showed that the adsorption of dissolved Ni2+ ions onto the surface of the SiC in the pH range 4-8 changed the sign and magnitude of the surface potential. Moreover, trivalent complex species Co(NO2)3-6 replaced nickel species on the SiC surface and decreased the surface charge of SiC to between pH 3 and pH 5. Even in a highly concentrated electrolyte solution, the SiC particles still maintained a positive charge in a Ni(SO3NH2)2 suspension with nickel coplating on the cathode. The difference between the SC reading and the zeta potential, as well as the surface adsorption of various species onto the SiC, are discussed here. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/95371 https://www.scopus.com/inward/record.uri?eid=2-s2.0-0035413137&doi=10.1111%2fj.1151-2916.2001.tb00852.x&partnerID=40&md5=2441f3369b3e32d4f5ccf25d8f8cf160 |
ISSN: | 00027820 | SDG/關鍵字: | Adsorption; Electric currents; Electrolytes; Electrophoresis; Kinetic theory; Nanostructured materials; Particles (particulate matter); pH effects; Photometry; Surface properties; Electrokinetic properties; Electrophoretic mobility photometry; Streaming current; Surface adsorption; Surface potential; Silicon carbide |
顯示於: | 材料科學與工程學系 |
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