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Phase transformations of mesoporous zirconia

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dc.contributor.author Neeraj
dc.contributor.author Rao, C N R
dc.date.accessioned 2012-11-06T11:11:13Z
dc.date.available 2012-11-06T11:11:13Z
dc.date.issued 1998-07
dc.identifier 0959-9428 en_US
dc.identifier.citation Journal Of Materials Chemistry 8(7), 1631-1634 (1998) en_US
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/924
dc.description Open Access en_US
dc.description.abstract The kinetics of the lamellar-->thexagonal-->cubic transformations of mesoporous zirconia prepared by using a neutral organic amine as the amphiphile have been studied in phosphoric acid medium. The lamellar-->hexagonal transformation is preceded by a loss of the template molecules and the hexagonal-->cubic transformation proceeds only when the lamellar form has entirely transformed to the hexagonal phase. The kinetics of the thermal transformation of lamellar zirconia to the hexagonal form have also been examined; this transformation also occurs and is accompanied by a loss of template molecules. Accordingly, the activation energy of the transformation is comparable to the hydrogen bond energy between the amine and the oxo-zirconium species. The phase transformations of mesoporous zirconia can be understood in terms of minimum energy surfaces. en_US
dc.description.uri http://dx.doi.org/10.1039/a801419a en_US
dc.language.iso en en_US
dc.publisher Royal Society Chemistry en_US
dc.rights © 1998 Royal Society Chemistry en_US
dc.subject Molecular-Sieves en_US
dc.subject Liquid-Crystal en_US
dc.subject Surfactant en_US
dc.subject Interfaces en_US
dc.title Phase transformations of mesoporous zirconia en_US
dc.type Article en_US


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