Preparation of Palladium Supported on Ferric Oxide Nano-catalysts for Carbon Monoxide Oxidation in Low Temperature

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• 作者：Fagen Wang ; Yan Xu ; Kunfeng Zhao ; Dannong He
• 关键词：Pd/Fe2O3 ; Carbon monoxide ; Catalytic oxidation ; Low temperature
• 刊名：Nano-Micro Letters
• 出版年：2014
• 出版时间：July 2014
• 年：2014
• 卷：6
• 期：3
• 页码：233-241
• 全文大小：466KB
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• 作者单位：Fagen Wang (15)
  Yan Xu (15)
  Kunfeng Zhao (15)
  Dannong He (15)
  
  15. National Engineering Research Center for Nanotechnology, Shanghai, 200241, China
  
• 刊物类别：Nanotechnology and Microengineering; Nanotechnology; Nanoscale Science and Technology;
• 刊物主题：Nanotechnology and Microengineering; Nanotechnology; Nanoscale Science and Technology;
• 出版者：Springer Berlin Heidelberg
• ISSN：2150-5551

文摘

Catalytic property of Pd/Fe₂O₃ catalysts on carbon monoxide (CO) oxidation at low temperature were investigated in this paper. Both the as-prepared and H₂-pretreated Pd/Fe₂O₃ catalysts show catalytic performances on CO oxidation. The CO was completely converted at 333 K for the as-prepared sample, whereas at 313 K for H₂-pretreated Pd/Fe₂O₃-573 catalyst. The catalytic performance of the Pd/Fe₂O₃ catalyst decreases with increased calcination temperature. This may be due to the increased crystallinity of the support and decreased metal-support interaction. Progressive deactivation of the catalysts during long-time reaction was associated with the formation of carbonates on the catalyst surface that inhibits CO activation or intermediate transformation. Keywords Pd/Fe₂O₃ Carbon monoxide Catalytic oxidation Low temperature