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dc.contributor.authorWang, Ye
dc.contributor.author王野
dc.contributor.authorYang, Wei
dc.contributor.authorYang, Luejuan
dc.contributor.authorWang, Xiaoxing
dc.contributor.authorZhang, Qinghong
dc.contributor.author张庆红
dc.date.accessioned2011-07-08T12:28:40Z
dc.date.available2011-07-08T12:28:40Z
dc.date.issued2006-06
dc.identifier.citationCATALYSIS TODAY,2006,117(1-3):156-162zh_CN
dc.identifier.issn0920-5861
dc.identifier.urihttp://dx.doi.org/doi:10.1016/j.cattod.2006.05.018
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/10025
dc.description.abstractMesoporous molecular sieves containing iron sites with different dispersions and environments were studied for the partial oxidation of methane and the epoxidation of propylene. The tetrahedral Fe(111) sites incorporated inside the framework of SBA-15 showed higher HCHO selectivity under a similar CH4 conversion than the oligomeric FeOx clusters located in the mesopores in the partial oxidation of CH4 by O-2. HCHO selectivity of the FeOx clusters in SBA-15 could be improved by the modification with either an acidic group (e.g., phosphate) or an alkali metal ion, which increased the dispersion or changed the local coordination environment of iron species. The catalyst containing FePO4 clusters formed by the modification with phosphate exhibited the best catalytic performances for HCHO formation. This catalyst also showed uniquely high selectivities to HCHO and CH3OH as N2O was used as the oxidant for the partial oxidation of CH4. For the epoxidation of propylene to propylene oxide (PO), the modification of the FeOx/SBA-15 with an alkali metal salt typified by KCl was effective. Among many SBA-15-supported transition metal oxides modified by KCl, the KCl-FeOx/SBA-15 showed the best catalytic performances for the epoxidation of propylene by N2O. The comparative studies using N2O and O-2 as the oxidant revealed that N2O was necessary for PO formation over the KCl-FeOx/SBA-15 catalyst. (C) 2006 Elsevier B.V. All rights reserved.zh_CN
dc.language.isoenzh_CN
dc.publisherELSEVIER SCIENCE BVzh_CN
dc.subjectironzh_CN
dc.subjectmesoporous silicazh_CN
dc.subjectmethanezh_CN
dc.subjectselective oxidationzh_CN
dc.subjectpropylenezh_CN
dc.subjectepoxidationzh_CN
dc.titleIron-containing heterogeneous catalysts for partial oxidation of methane and epoxidation of propylenezh_CN
dc.typeArticlezh_CN


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