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Selective catalytic reduction of NO with methane (CH4-SCR) in an excess of oxygen over Co ions located in ZSM-5 of various Si/Al composition and in ferrierite, mordenite, chabazite and beta zeolite was investigated. From the comparison of the dependence of the TOF values per Co ion for NO conversion to N2 and Co ions distribution among the cationic sites on total Co ion concentration, the catalytic...
Ion-exchanged Co ions and nitrosyl complexes in CoH– and CoNaK–ferrierites with a Co loading up to Co/Al=0.4 were investigated by diffuse reflectance UV–Vis–NIR, FTIR in the region of the skeletal and NO vibrations, and EXAFS measurements. Co(II) ion coordination, cation-induced perturbations of the framework T–O bonds of the hosted cationic sites, and Co–O distances of three typical ion-exchanged...
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