2009
DOI: 10.1007/s11244-009-9249-6
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Microporosity in Mesoporous SBA-15 Supports: A Factor Influencing the Catalytic Performance of Immobilized Metalloporphyrin

Abstract: MnTMPyP cationic metalloporphyrin was immobilized by means of ion exchange on a series of aluminated SBA-15 mesoporous silica supports prepared by different methods. The solids were characterized with XRD, HRTEM, HRSEM, chemical analysis, and nitrogen sorption isotherms. The catalysts were tested in the reaction of cyclohexene oxidation with iodozobenzene. It was found that immobilization significantly enhances catalytic activity as compared to the homogeneous system. In contrast to previously investigated met… Show more

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Cited by 8 publications

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“…Existem relativamente poucos trabalhos nesta área, que exploram metaloporfirinas imobilizadas em materiais mesoporosos como catalisadores, sendo que a maioria dos trabalhos foram relatados nos últimos cinco anos, e envolvem as matrizes: SBA-16 [47] SBA-15 [32,[48][49][50], sílica hexagonal mesoporosa (HSM) [35], esfera oca mesoporosa [51,52], MCM-48 [53], MCM-41 [54][55][56][57][58] e compósitos mesoporosos magnéticos. [33,34,59] A maioria dos trabalhos aplica os catalisadores preparados na oxidação de hidrocarbonetos, mas poucos trabalhos exploram e relacionam as propriedades de adsorção e difusão dos catalisadores com os resultados catalíticos.…”
Section: A5 -Catálise De Metaloporfirinas Com Materias Mesoporosos
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