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鉑/二氧化鈦薄膜在ITO基材表面上的STM觀測與催化性研究

STM and Catalytic Study of Pt/TiO2 Film on ITO Surface

摘要


本研究利用光催化沉積法來製備鉑/二氧化鈦觸煤,必以浸漬覆膜(dip-coating)及旋轉覆膜(spin-coating)兩種方法將之轉覆在氧化銦錫(ITO)基材表面上形成薄膜。經由掃描式穿隧電子顯微鏡(STM)的鑑定,來探討鉑/二氧化鈦在ITO基材表面的分散度及其與製備條件、覆膜方式等的相關性。最後,利用雙硫化合物之還原反應鑑定該薄膜之催化性。

並列摘要


The platium-modified titanium oxide (Pt/TiO2) particles have been successfully made by photocatalytic deposition on Degussa P-25. Those photocatalytic particles are then deposited onto the indium tin oxide (lTO) substrate to form thin films of Pt/TiO2 by means of dip-coating and spin-coating processes. The morphology, crystaIIine structure, the extent of dispersion of Pt/TiO2, and the correlation among these factors to the coating conditions of Pt/TiO2 films have been investigated using scanning tunneling microscopy (STM) technique.

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