Kim, YG Kim, YC Hong, SB Kim, MH Kim, YP Uh, YS 2024-01-21T16:01:54Z 2024-01-21T16:01:54Z 2021-09-03 1999-02 1011-372X https://pubs.kist.re.kr/handle/201004/142437 Selective reduction of NO by CH4 in the presence of excess O-2 has been studied on cobalt-ion-exchanged synthetic clinoptilolite (Co-CLI) zeolite. The catalytic results are compared with those obtained from Co-ZSM-5 and Co-FER, the two most widely studied catalysts for this reaction. At T greater than or equal to 500 degrees C, Co-CLI is much more active for NO reduction than Co-ZSM-5, but it is less active than Co-FER. However, it is found that the selectivity for CH4 toward reacting with NO at high temperatures (T greater than or equal to 450 degrees C) is higher on Co-CLI than on Co-ZSM-5 or Co-FER. On the basic of the overall catalytic results, the importance of zeolite pore size as a structural parameter influencing the activity of intrazeolitic Co2+ ions for NO reduction by CH4 is discussed. English SPRINGER CATALYTIC REDUCTION FRAMEWORK TOPOLOGY ADSORPTION NITROGEN Selective reduction of nitric oxide by methane on cobalt-ion-exchanged synthetic clinoptilolite zeolite in oxygen-rich atmosphere Article 10.1023/A:1019032623674 1 CATALYSIS LETTERS, v.57, no.4, pp.179 - 185 CATALYSIS LETTERS 57 4 179 185 scie scopus 000079584500004 2-s2.0-0000046418 Chemistry, Physical Chemistry Article CATALYTIC REDUCTION FRAMEWORK TOPOLOGY ADSORPTION NITROGEN synthetic clinoptilolite cobalt NO reduction CH4 zeolite pore structure