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首页> 外文期刊>RSC Advances >Synthesis of core-shell structured alumina/Cu microspheres using activation by silver nanoparticles deposited on polydopamine-coated surfaces
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Synthesis of core-shell structured alumina/Cu microspheres using activation by silver nanoparticles deposited on polydopamine-coated surfaces

机译：用银纳米粒子沉积在聚二胺涂层表面上的含银纳米颗粒的核壳结构氧化铝/ Cu微球的合成

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摘要

A facile approach was developed to synthesize core-shell structured alumina/Cu microspheres by means of activation by silver nanoparticles in situ deposited on the polydopamine-coated alumina microsphere surface. This approach takes advantage of both the sufficient reductive capacity of polydopamine towards silver ions and the high activation of silver nanoparticles towards copper deposition. The chemical compositions of composite microspheres were characterized by energy dispersive X-ray spectroscopy (EDS) and Fourier transform infrared spectroscopy (FTIR). The surface morphologies and crystalline structures of the coated alumina were studied by field-emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD), respectively. The adhesion strength between the copper layer and the substrate was evaluated by ultrasonic exposure and thermal shock test. The results showed that silver nanoparticles effectively catalyzed the copper deposition reaction on the polydopamine-coated surface, which led to a faster and more reliable plating process compared with the process without activation. The compact and continuous copper layer obtained showed strong adhesion on the substrate surface.
机译：开发了一种容易方法，通过通过沉积在多多达多胺涂覆的氧化铝微球表面上的原位的银纳米颗粒活化来合成核 - 壳结构化氧化铝/ Cu微球。这种方法利用多碳胺的充分还原能力朝向银离子和银纳米颗粒的高活化朝向铜沉积。通过能量分散X射线光谱（EDS）和傅里叶变换红外光谱（FTIR）的化学组成特征。通过现场 - 发射扫描电子显微镜（FESEM）和X射线衍射（XRD）研究了涂覆的氧化铝的表面形态和结晶结构。通过超声波暴露和热冲击试验评估铜层和基板之间的粘合强度。结果表明，银纳米粒子有效地催化了多胺涂覆表面上的铜沉积反应，其导致了与未激活的过程相比更快，更可靠的电镀过程。在基板表面上获得的紧凑和连续铜层显示出强烈的粘附性。

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  • 来源
    《RSC Advances》 |2016年第85期|共7页
  • 作者

    Hu Jiaxun; Wu Shuqing; Cao Qin; Zhang Wenda;

  • 作者单位

    South China Univ Technol Sch Mat Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Sch Mat Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Sch Mat Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Sch Mat Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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