Rapid microwave-assisted synthesis of saponites and their use as oxidation catalysts

Saponites containing divalent Mg, Ni, or Fe as octahedral cations and trivalent Al and Fe substituting Si in the tetrahedral sheet were synthesized using microwave radiation. Saponite with a high specific surface area was obtained in all the syntheses, although Fe-Al saponite crystallized was impuri...

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Detalhes bibliográficos
Autores: Trujillano Hernández, Raquel, Rico, E., Vicente Rodríguez, Miguel Ángel, Rives Arnau, Vicente Rafael, Ciuffi, Katia J., Cestari, A., Gil Bravo, Antonio, Korili, Sophia A.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:España
Recursos:Universidad de Salamanca (USAL)
Repositorio:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/150993
Acesso em linha:http://hdl.handle.net/10366/150993
Access Level:acceso abierto
Palavra-chave:Saponite
Oxidation catalysts
Epoxidation
Cyclooctene
Cyclooctenoxide
2303 Química Inorgánica
Descrição
Resumo:Saponites containing divalent Mg, Ni, or Fe as octahedral cations and trivalent Al and Fe substituting Si in the tetrahedral sheet were synthesized using microwave radiation. Saponite with a high specific surface area was obtained in all the syntheses, although Fe-Al saponite crystallized was impurified by Fe2O3 and analcime. The catalytic activity of the solids for the epoxidation of (Z)-cyclooctene by hydrogen peroxide was tested, the solids obtained being highly active (conversion up to 8.8%, and 100% selectivity to the epoxide)

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