Synthesis, Structural and Electrochemical Characterization of Honeycomb Supported Pt-Pd-Rh Composite Catalyst for the Decomposition of Gaseous Ammonia to Nitrogen
The behavior of the ammonia (NH3) oxidation was by selective catalytic oxidation (SCC over a honeycomb supported Pt-Pd-Rh composite catalyst in a tubular fixed-bed flow quartz reactor (TFBR) at 673 K. A honeycomb Pt-Pd-Rh composite catalyst was prepared by incipient wetness impregnation with aqueous solutions of H2PtCl6, Pd(NO3)3 and Rh(NO3)3 that were coated on cordierite cellular ceramic materials. The catalysts surface properties were characterized using OM. The experimental results show that contaminants crystal aggregation phases and washcoat loss from high initial concentration of NH3 may be responsible for the deactivation of the catalysts. In addition, the catalytic redox behavior was determined by cyclic voltammetric (CV), which showed that the catalytic behavior is related to the metal oxide properties of the catalyst.
selective catalytic oxidation (SCO) tubular fixed-bed reactor (TFBR) ammonia honeycomb supported Pt-Pd-Rh composite catalyst cyclic voltammetric (CV)
Chang-Mao Hung
Department of Vehicle Engineering,Yung-Ta Institute of Technology and Commerce,316 Chung-Shan Road,Linlo,Pingtung 909,Taiwan,R.O.C.
国际会议
the 2011 International Conference on Key Engineering Materials(ICKEM 2011)(2011关键工程材料国际会议)
三亚
英文
21-25
2011-03-25（万方平台首次上网日期，不代表论文的发表时间）