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dc.contributor.authorJia, J
dc.contributor.authorWang, Y
dc.contributor.author王野
dc.contributor.authorTanabe, E
dc.contributor.authorShishido, T
dc.contributor.authorTakehira, K
dc.date.accessioned2012-05-01T02:14:13Z
dc.date.available2012-05-01T02:14:13Z
dc.date.issued2003-12-27
dc.identifier.citationMICROPOROUS AND MESOPOROUS MATERIALS,2003,57(3):283-289zh_CN
dc.identifier.issn1387-1811
dc.identifier.urihttp://dx.doi.org/10.1016/S1387-1811(02)00598-X
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/12214
dc.description.abstractThe pyrolysis of CH4 to H-2 and carbon fibers over MCM-41 supported Ni catalyst has been investigated at different temperatures, The initial conversion of CH4 at 873 K is higher than it is at 773 K, but the deactivation at 873 K occurs rapidly. The investigations with SEM and TEM techniques indicate that the pyrolysis of CH4 generates mainly solid carbon fibers at 773 K but mostly hollow ones at 873 K on Ni/MCM-41. Ni metal particles have hardly been found on the tip of or inside the carbon fibers. Raman spectroscopic studies suggest that the carbon fibers formed at 873 K are more graphitic than those obtained at 773 K. The temperature-programmed reactions with O-2 (TPO) and H-2 (TPH) reveal that the solid carbon fibers formed at 773 K show higher reactivity towards O-2 and H-2 than the hollow ones formed at 873 K. (C) 2002 Elsevier Science Inc. All rights reserved.zh_CN
dc.language.isoenzh_CN
dc.publisherELSEVIER SCIENCE BVzh_CN
dc.subjectpyrolysiszh_CN
dc.subjectCH4zh_CN
dc.subjectNi catalystzh_CN
dc.subjectMCM-41zh_CN
dc.subjectcarbon fiberszh_CN
dc.titleCarbon fibers prepared by pyrolysis of methane over Ni/MCM-41 catalystzh_CN
dc.typeArticlezh_CN


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