Pt Deposition Techniques for Catalytic Activation of Nano-structured Materials

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• 作者：Ferenc Bí ; r&oacute ; ^a ; ^b ; ^{birof@mfa.kfki.hu} ; Gyö ; rgy Z. Radn&oacute ; czi^a ; Má ; té ; Taká ; cs^a ; ^c ; Zs&oacute ; fia Baji^a ; Csaba Dü ; cső^a ; Istvá ; n Bá ; rsony^a
• 关键词：Pt deposition ; nanoporous materials ; gas sensors
• 刊名：Procedia Engineering
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：168
• 期：Complete
• 页码：1148-1151
• 全文大小：704 K
• 卷排序：168

文摘

Various deposition techniques were tested to form Pt catalyst on nano-structured materials characterized by 50-200 nm dimensions. Different layer structures applied in gas sensing were sensitized by Pt sputtering and droplet deposition of Pt nano-particles formed from H2[PtCl6] solutions. Besides, atomic layer deposition (ALD) of Pt was also investigated. The layers to be coated were disordered piles of WO3 nano-rods and sol-gel deposited WO3 nano-crystals as well as electrochemically formed alumina with high aspect ratio perpendicular pores. Distribution of Pt particles inside these layers was analyzed by scanning (SEM) and transmission electron microscopy (TEM). Demonstration of functionality is also provided.