Show simple item record

dc.contributor.authorSun Yi-Fei
dc.contributor.authorLi Guang-Chao
dc.contributor.authorPan Xin-Di
dc.contributor.authorHuang Chuan-Jing
dc.contributor.authorWeng Wei-Zheng
dc.contributor.authorWan Hui-Lin
dc.contributor.author万惠霖
dc.date.accessioned2013-01-25T03:35:21Z
dc.date.available2013-01-25T03:35:21Z
dc.date.issued2012-09
dc.identifier.citationACTA PHYSICO-CHIMICA SINICA,2012,28(9):2135-2140zh_CN
dc.identifier.issn1000-6818
dc.identifier.urihttp://dx.doi.org/10.3866/PKU.WHXB201206271
dc.identifier.uriWOS:000308627200018
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/14716
dc.description.abstractA series of mesoporous alumina supported nickel oxide, cobalt oxide, and bimetallic nickel-cobalt oxide catalysts were synthesized by a one-pot method, using nonionic triblock copolymer as a template and aluminum isopropoxide as the source of aluminum. For comparison, an additional supported Ni-Co oxide catalyst was prepared by impregnation, using mesoporous alumina as the support. The catalysts were tested for the oxidative dehydrogenation of propane, and their structure and properties were characterized by N-2 adsorption-desorption, high-resolution transmission electron microscopy (HRTEM), powder X-ray diffraction (XRD), temperature-programmed H-2 reduction (H-2-TFR), and laser Raman spectroscopy (LRS). All samples synthesized by the one-pot method had large surface area, highly ordered mesoporous structure, and highly dispersed supported oxide species. However, in the sample prepared by impregnation, the mesostructure of the carrier was destroyed with the formation of Co3O4 phase. Among the catalysts studied, the mesoporous alumina supported Ni-Co oxide catalyst from one-pot synthesis showed the best catalytic performance for propane oxidation to propylene. On this catalyst a 10.3% propylene yield was obtained at 450 degrees C, C3H8:O-2:N-2 molar ratio of 1:1:4, and gas hourly space velocity (GHSV) of 10000 mL.h(-1).g(-1). This result was much higher than the yield of 2.4% obtained from the catalyst prepared by impregnation. Combining the results of characterization and catalytic reaction, the relationship between structure and performance of the catalysts was discussed. The large difference observed in catalytic performance between catalysts prepared by one-pot and impregnation methods was attributed to their different structures, including textural structure, and dispersion of the supported metal oxide species.zh_CN
dc.description.sponsorshipNational Key Basic Research Program of China (973) [2010CB732303]; National Natural Science Foundation of China [21173173, 21073148, 21033006]; Program for Innovative Research Team of the Ministry of Education of China [IRT1036]; National Foundation for Fostering Talents of Basic Science, China [J1030415]; Key Scientific Project of Fujian Province, China [2009HZ0002-1]zh_CN
dc.language.isoenzh_CN
dc.publisherPEKING UNIV PRESSzh_CN
dc.subjectPropanezh_CN
dc.subjectPropylenezh_CN
dc.subjectOxidative dehydrogenationzh_CN
dc.subjectNi-Co oxide catalystzh_CN
dc.subjectMesoporous aluminazh_CN
dc.subjectOne-pot methodzh_CN
dc.titleOxidative Dehydrogenation of Propane to Propylene over Mesoporous Alumina Supported Ni-Co Oxide Catalystszh_CN
dc.typeArticlezh_CN


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record