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Simultaneous catalytic removal of NOx and diesel soot particulate over perovskite-type oxides and supported Ag catalysts
Authors:Liu Zhi-Ming  Hao Zheng-Ping  Guo Yun  Zhuang Ya-Hui
Institution:1. Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China
2. Beijing Research Institute of Non-Ferrous Metals,Beijing 100088,China
Abstract:A series of perovskite type oxides and supported Ag catalysts were prepared, and characterized by X ray diffraction (XRD) and X ray photoelectron spectroscopy (XPS). The catalytic activities of the catalysts as well as influencing factors on catalytic activity have been investigated for the simultaneous removal of NOx and diesel soot particulate. An increase in catalytic activity for the selective reduction of NOx was observed with Ag addition in these perovskite oxides, especially with 5% Ag loading. This catalyst could be a promising candidate of catalytic material for the simultaneous elimination of NOx and diesel soot.
Keywords:perovskite  type catalysts  supported Ag catalyst  NOx  diesel soot
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