Controlled Pd deposition on fibers by electroless plating. The effects of the support on the reduction of nitrite in water

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• 作者：M.L. Bosko ; F.A. Marchesini ; L.M. Cornaglia ; E.E. Mir¨®
• 关键词：Pd supported on fibers ; Nitrite reduction ; Water purification ; Electroless plating ; Selectivity to N2
• 刊名：Catalysis Today
• 出版年：2013
• 出版时间：1 September, 2013
• 年：2013
• 卷：212
• 期：Complete
• 页码：16-22
• 全文大小：2391 K

文摘

Pd catalysts supported on activated silica-alumina fibers (CFs) and activated carbon felts (ACFs) were prepared and evaluated for the reduction of nitrite in water in a batch reactor. The electroless plating (ELP) method was used in order to deposit small Pd particles on the surface of the fibers. While a homogeneous distribution of Pd nanoparticles was obtained for carbon fibers, this was not the case for ceramic ones in which non-homogeneous patches of Pd films were formed. This fact resulted in a higher activity for nitrite reduction when carbon fibers were used. However, the selectivity toward the undesired product ammonia, measured at the end of the reaction, was slightly higher for Pd/ACFs catalysts.