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dc.contributor.authorZhang, Qinghong
dc.contributor.author张庆红
dc.contributor.authorLiu, Xianhong
dc.contributor.authorFan, Wenqing
dc.contributor.author方维平
dc.contributor.authorWang, Ye
dc.contributor.author王野
dc.date.accessioned2012-03-19T00:25:25Z
dc.date.available2012-03-19T00:25:25Z
dc.date.issued2011-02-01
dc.identifier.citationAPPLIED CATALYSIS B-ENVIRONMENTAL,2011,102(1-2):207-214zh_CN
dc.identifier.issn0926-3373
dc.identifier.urihttp://dx.doi.org/doi:10.1016/j.apcatb.2010.11.043
dc.identifier.uriWOS:000287103000025
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/11789
dc.description.abstractThe modification by MnO(x) significantly enhanced the activity and stability of Co(3)O(4) for the preferential oxidation of CO in H(2)-rich stream. The MnO(x)-promoted Co(3)O(4) catalyst with a Mn/Co molar ratio of 1/8 exhibited the best performance; CO conversion was 56% at 40 degrees C and increased to >90% as the temperature was raised to >75 degrees C. This catalyst could provide 100% CO conversion at 125-175 degrees C. CO conversions of 97% and 100% remained unchanged for 100 h at 100 and 125 degrees C, respectively, whereas the deactivation was observed over Co(3)O(4) alone. Our characterizations using XRD, XPS and TEM indicated that the modification of Co(3)O(4) with MnO(x) caused the formation of smaller Mn(x)Co(3-x)O(4) solid-solution particles. The O(2)-TPD, CO-TPD, and pulse reaction studies suggest that the incorporation of MnO(x) into Co(3)O(4) increased the amounts of reactive oxygen species and adsorbed CO species over catalyst surfaces and enhanced the regeneration ability of the reduced catalyst by O(2). All these enhancements are proposed to be responsible for the improved catalytic performance of the MnO(x)-promoted Co(3)O(4). (C) 2010 Elsevier B.V. All rights reserved.zh_CN
dc.description.sponsorshipNSF of China[20625310, 20773099, 20873110, 20923004]; National Basic Research Program of China[2010CB732303]; Key Scientific Project of Fujian Province[2009HZ0002-1]; Research Fund for the Doctoral Program of Higher Education[20090121110007]zh_CN
dc.language.isoenzh_CN
dc.publisherELSEVIER SCIENCE BVzh_CN
dc.subjectCarbon monoxidezh_CN
dc.subjectPreferential oxidationzh_CN
dc.subjectHigh-purity hydrogenzh_CN
dc.subjectCobalt oxidezh_CN
dc.subjectManganese oxidezh_CN
dc.titleManganese-promoted cobalt oxide as efficient and stable non-noble metal catalyst for preferential oxidation of CO in H(2) streamzh_CN
dc.typeArticlezh_CN


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