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dc.contributor.authorChang, Yen-Poen_US
dc.contributor.authorChang, Po-Hsuehen_US
dc.contributor.authorLee, Yuan-Tseen_US
dc.contributor.authorLee, Tai-Jungen_US
dc.contributor.authorLai, Yen-Hoen_US
dc.contributor.authorChen, San-Yuanen_US
dc.date.accessioned2014-12-08T15:33:22Z-
dc.date.available2014-12-08T15:33:22Z-
dc.date.issued2014-01-01en_US
dc.identifier.issn1387-1811en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.micromeso.2013.09.013en_US
dc.identifier.urihttp://hdl.handle.net/11536/23198-
dc.description.abstractNovel special dual-structure calcium aluminate nanocomposites consisting of mesoporous Ca-containing Al2O3 nanonetworks with Ca12Al14O33 polycrystalline nanorods have been successfully synthesized using the microwave-hydrothermal (M-H) process in an alcohol solution consisting of calcium nitrate and mesoporous alumina, followed by calcination at a lower temperature (e.g., less than 600 degrees C). The mesoporous Ca-containing aluminate nanocomposites possessed a specific surface area of 51 m(2) g(-1) and a broad pore size distribution of 4-12 nm in diameter, as observed from N-2 adsorption/desorption measurements. The results showed that highly dispersed Ca12Al14O33 nanorods grown on the mesoporous nanostructure were obtained by varying the molar ratio of Ca/Al or by controlling microwave heating time, as characterized by scanning electron microscopy (SEM), transmission electron microscopy/electronic energy loss spectroscopy (TEM/EELS) and powder X-ray diffraction (PXRD). The Ca12Al14O33 nanorods with diameters of 50-100 nm and lengths of 200-400 nm were grown in and on the one-dimensional mesochannels. A formation mechanism of the mesoporous Ca-containing aluminate nanocomposites involving amorphous mesoporous hydrated-Al2O3 was also proposed. (C) 2013 Elsevier Inc. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectMetal oxidesen_US
dc.subjectNanocompositesen_US
dc.subjectCalcium aluminatesen_US
dc.subjectMicrowaveen_US
dc.titleMorphological and structural evolution of mesoporous calcium aluminate nanocomposites by microwave-assisted synthesisen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.micromeso.2013.09.013en_US
dc.identifier.journalMICROPOROUS AND MESOPOROUS MATERIALSen_US
dc.citation.volume183en_US
dc.citation.issueen_US
dc.citation.spage134en_US
dc.citation.epage142en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.identifier.wosnumberWOS:000327284900018-
dc.citation.woscount0-
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