Catalytic reduction of NO by CO over NiO/CeO2 catalyst
A new catalyst composed of nickel oxide and cerium oxide was studied with respect to itsactivityfor NO reduction by CO under stoichiometric conditions.NiO/CeO2 catalyst was very active，and complete conversion of NO and CO occurred at 210℃at a space velocity of 120 000h-1.Based on theresults of surface analysis，a reaction model for NO/COinteraction over NiO/Ce02 has been proposed：(i)CO reduces surface oxygen to create vacant sites;(ii)On the vacant sites，NO dissociates to produce N2;and (iii)theoxygen originated from NO dissociation is removed by CO to regenerate vacant sites for furtherNO dissociation.
催化还原 催化剂 氧化镍 氧化铈 二氧化碳
Yong Wang Aimin Zhu Nan Zheng Xiaoqing Cheng Chuan Shi
Laboratory of Plasma Physical Chemistry,Dalian University of Technology,Dalian 116024
国内会议
青岛
英文
361-362
2007-08-19（万方平台首次上网日期，不代表论文的发表时间）