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《Industrial Catalysis》 2006-04
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Selective catalytic reduction of NO by methane over Co/H-ZSM-5 in the presence of oxygen

LIU Yu-ying,ZHANG Jin-qiao,HE Yong,LI Rui-feng (Key Laboratory of Coal Science and Technology of Ministry of Education,Institute of Special Chemicals,Taiyuan University of Technology,Taiyuan 030024,Shanxi China)  
Co/H-ZSM-5 catalysts with different Si/Al and Co loadings were prepared by ion exchange and their catalytic properties studied.Effects of Si/Al ratio,cobalt loadings,space velocity,O_2 concentration and acidic sites were investigated.The samples were characterized by XRD,BET,H_2-TPR and DRS-UV-vis techniques.The results showed that activity of the catalysts increased with cobalt loadings but declined with Si/Al;NO conversion decreased with GHSV;Co~(2+) acted as the active centers for selective reduction of NO by methane and H~+ as the protonic sites;presence of acidic sites promoted the catalytic activity.
【Fund】: 国家自然基金资助项目(20206020)
【CateGory Index】: O643.36
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