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dc.contributor.authorLeón-Reina, Laura-
dc.contributor.authorCabeza, Aurelio-
dc.contributor.authorRius, Jordi-
dc.contributor.authorMaireles-Torres, Pedro-
dc.contributor.authorAlba Rubio, Ana Carolina-
dc.contributor.authorLópez Granados, Manuel-
dc.date.accessioned2019-05-17T10:53:24Z-
dc.date.available2019-05-17T10:53:24Z-
dc.date.issued2013-04-
dc.identifier.citationJournal of Catalysis 300: 30-36 (2013)-
dc.identifier.issn0021-9517-
dc.identifier.urihttp://hdl.handle.net/10261/181634-
dc.description.abstractCalcium diglyceroxide has been reported as a very active phase in the transesterification of triglycerides with methanol for biodiesel production. This work reports on the determination of the crystal structure of Ca diglyceroxide by Patterson-based direct methods from synchrotron X-ray powder diffraction (XRD) data in combination with characterisation by Differential Thermal Analysis-Thermogravimetry (DTA-TG), Scanning Electron Microscopy (SEM) and X-ray Photoelectron and Fourier Transform-Infrared spectroscopies (XPS and FT-IR). Its crystal structure is formed by molecular tetramers held together by a complex H-bond network. Both the XRD structural determination and the O1s XPS core level indicate the presence of a basic non-protonated O- anion at the surface of Ca diglyceroxide. Along with the presence of surface lipophilic CHx units, this O- anion may be the origin of this molecule's high activity relative to CaO.-
dc.description.sponsorshipThe authors are grateful for financial support from the Spanish Ministry of Science and Innovation (MAT2010-15175, ENE2009-12743-C04-01 and 03, MAT2009-07967, NANOSELECT CSD2007-00041 projects), Junta de Andalucía (P09-FQM-5070) and FEDER.-
dc.publisherElsevier-
dc.rightsclosedAccess-
dc.titleStructural and surface study of calcium glyceroxide, an active phase for biodiesel production under heterogeneous catalysis-
dc.typeartículo-
dc.identifier.doi10.1016/j.jcat.2012.12.016-
dc.relation.publisherversionhttps://doi.org/10.1016/j.jcat.2012.12.016-
dc.identifier.e-issn1090-2694-
dc.date.updated2019-05-17T10:53:24Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
dc.contributor.funderMinisterio de Ciencia e Innovación (España)-
dc.contributor.funderJunta de Andalucía-
dc.contributor.funderEuropean Commission-
dc.relation.csic-
dc.identifier.funderhttp://dx.doi.org/10.13039/501100004837es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
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