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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Non-hydrolytic sol-gel synthesis of mesoporous iron-aluminum oxide and their properties in the oxidation of hydrocarbons by hydrogen peroxide

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Author(s):
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Ricci, Gustavo Pimenta [1] ; Garcia, Larissa Oliveira [1] ; Nassar, Eduardo Jose [1] ; Nakagaki, Shirley [2] ; Stival, Joao Felipe [2] ; da Rocha, Zenis Novaes [3] ; Vicente, Miguel Angel [4] ; Trujillano, Raquel [4] ; Jimenez, Alejandro [4] ; Rives, Vicente [4] ; Marcal, Liziane [1] ; de Faria, Emerson Henrique [1] ; Ciuffi, Katia Jorge [1]
Total Authors: 13
Affiliation:
[1] Univ Franca, Sol Gel Grp, Parque Univ 201, BR-14404600 Franca, SP - Brazil
[2] Univ Fed Parana, Dept Quim, Bioinorgan & Catalysis Grp, Curitiba, Parana - Brazil
[3] Univ Fed Bahia, Inst Quim, BR-40170290 Salvador, BA - Brazil
[4] Univ Salamanca, Dept Quim Inorgan, GIR QUESCAT, Salamanca 37008 - Spain
Total Affiliations: 4
Document type: Journal article
Source: Microporous and Mesoporous Materials; v. 325, OCT 2021.
Web of Science Citations: 0
Abstract

Iron-containing alumina materials were prepared by the non-hydrolytic sol-gel method in the presence of surfactants and their use as catalysts in the oxidation of hydrocarbons was studied. The solids were mesoporous, with large specific surface areas, > 250 m(2)/g for the solids treated at 500 degrees C, depending on the surfactant used (cetyltrimethylammonium bromide, sodium dodecyl sulfate or hexadecylamine), and the calcination treatment applied (500 or 1000 degrees C). Iron was well distributed on the alumina surface, as confirmed by the EPR signals at 4.3 and 2.0 G and SEM imaging. The catalytic activity in the oxidation of cyclooctene, cyclohexane, and n-hexane was evaluated. After reaction for 48 h, the solid prepared with cetyltrimethylammonium bromide and calcined at 1000 degrees C showed a 25% conversion of cyclohexane with 51% selectivity to cyclohexanone. These were promising results, considering the mild reaction conditions, using a non-polluting oxidant at room temperature or 50-55 degrees C. (AU)

FAPESP's process: 13/19523-3 - Functional Biohybrid materials based on layered and/or fibrous natural clays with multifaceted applications
Grantee:Emerson Henrique de Faria
Support Opportunities: Regular Research Grants
FAPESP's process: 05/00720-7 - Synthesis, characterization and catalytic activity of biomimetic and non-biomimetic systems, in hydrocarbon oxidation, using hydrogen peroxide as oxidant
Grantee:Katia Jorge Ciuffi Pires
Support Opportunities: Regular Research Grants
FAPESP's process: 17/15482-1 - Novel strategies synthesis to reuse Tanner industry by-products to obtain high-value functional porous materials
Grantee:Emerson Henrique de Faria
Support Opportunities: Regular Research Grants
FAPESP's process: 12/11673-3 - Thin films obtained by spin and dip-coating using sol-gel methodology
Grantee:Eduardo José Nassar
Support Opportunities: Regular Research Grants
FAPESP's process: 16/01501-1 - Multifunctional catalysts for advanced oxidation processes employing biogenic matrices or clays
Grantee:Katia Jorge Ciuffi Pires
Support Opportunities: Regular Research Grants
FAPESP's process: 11/03335-8 - Ironporphyrins as catalysts in oxidation reaction of cyclohexane and Baeyer-Villeger: heterogeneous systems
Grantee:Katia Jorge Ciuffi Pires
Support Opportunities: Regular Research Grants
FAPESP's process: 16/50322-2 - Materials with advanced technological and environmental applications
Grantee:Katia Jorge Ciuffi Pires
Support Opportunities: Regular Research Grants