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Type: Artigo de periódico
Title: Superparamagnetic nanoparticle-supported palladium: a highly stable magnetically recoverable and reusable catalyst for hydrogenation reactions
Author: Rossi, LM
Silva, FP
Vono, LLR
Kiyohara, PK
Duarte, EL
Itri, R
Landers, R
Machado, G
Abstract: Here we present a magnetically recoverable palladium catalyst prepared by immobilization of palladium over silica-coated magnetite nanoparticles. The catalyst reduced by molecular hydrogen contains palladium nanoparticles well distributed and stabilized in the magnetizable support surfaces and converts cyclohexene to cyclohexane under mild reaction conditions ( 75 degrees C and 6 atm) with TOF of 11 500 h(-1). The catalyst was easily recovered with a permanent magnet in the reactor wall and reused for up to 20 recycles of 2500 TON each without any significant loss in catalytic activity, demonstrating an efficient recycling process for hydrogenation reactions.
Country: Inglaterra
Editor: Royal Soc Chemistry
Rights: embargo
Identifier DOI: 10.1039/b612980c
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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