比较空心微球表面化学镀Ni薄膜的工艺.分别以Sn-Pd胶体溶液和[Ag(NH3)2]+溶液作为活化剂,将空心微球表面进行活化,再采用化学镀的方法分别在其上淀积金属Ni薄膜.使用扫描电子显微镜(SEM)、能量色散光谱(EDS)和X-射线衍射光谱(XRD)对两种工艺所镀Ni薄膜的表面微观结构和组分进行表征.结果表明:用Sn-Pd胶体溶液活化后的空心微球表面淀积了均匀、致密的金属Ni薄膜,该薄膜是由大小约100 nm的颗粒组成;而以[Ag(NH3)2]+溶液活化后的空心微球表面淀积的金属Ni薄膜,是由大小约1 μm的颗粒组成.并分析了这两种镀层形成的机理.
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