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首页> 外文会议>Processes at the semiconductor solution interface 5 >The Nanoporous Metallisation of Polymer Membranes through Photocatalytically Initiated Electroless Deposition
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The Nanoporous Metallisation of Polymer Membranes through Photocatalytically Initiated Electroless Deposition

机译：通过光催化引发的化学沉积的聚合物膜的纳米孔金属化。

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We present the novel use of Photocatalytically Initiated Electroless Deposition (PIED) for the deposition of metal films with highly ordered arrays of sub-μm (hemi)spherical pores directly onto the surface of insulating organic membrane-based substrates. This is achieved by sensitisation of the target substrate with a TiO_2 photocatalyst followed by the self-assembly of a hexagonally close packed polystyrene microsphere template at the substrate surface. Metallisation then occurs through PIED into the template interstices and directly onto the TiO_2 sensitised membrane surface. The dimensions of the resultant pores in the deposited metal are determined by the size of the template microspheres while metal film thickness may be controlled by the deposition period. The fabrication of nanoporous metal by this novel method adds a conductive and permeable metallic structure of high surface area to an otherwise electrically insulating polymer membrane surface. Such metallised insulating membranes have potentially wide applications in membrane and separation technology, desalination and electrode / solid electrolyte composites for fuel cells.
机译：我们提出光催化引发的化学沉积（PIED）的新颖用途，用于将具有亚微米（半）球形孔的高度有序阵列的金属膜直接沉积到绝缘的基于有机膜的基底表面上。这是通过用TiO_2光催化剂对目标基材进行敏化，然后在基材表面自组装六边形紧密堆积的聚苯乙烯微球模板实现的。然后，金属化通过PIED进入模板间隙，并直接进入TiO_2敏化的膜表面。沉积的金属中所得孔的尺寸由模板微球的尺寸决定，而金属膜的厚度可以由沉积时间控制。通过这种新颖的方法来制造纳米多孔金属，将高表面积的导电且可渗透的金属结构添加到原本电绝缘的聚合物膜表面上。这种金属化的绝缘膜在膜和分离技术，脱盐和燃料电池的电极/固体电解质复合材料中具有潜在的广泛应用。

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