Selective hydrogenation of nitrobenzene in phenylhydroxylamine on silica supported platinum catalysts

L. Pernoud*, J. P. Candy, B. Didillon, R. Jacquot, Jean-Marie Maurice Basset

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Selective hydrogenation of nitrobenzene into phenylhydroxylamine was studied in a batch reactor on silica supported metallic catalysts (M/SiO2, M=Pt, Pd, Rh, Ir), in neutral aqueous media without additives. It was found that selectivities close to 90% could be obtained at 80% conversion and yield as high as 80% was achieved at 100% conversion, using Pt/SiO2 catalyst working at 5°C, under 20 bar of hydrogen. The mechanism of the reaction was investigated and it was proposed that the reaction proceed via a M-O-N(H)-Ph adsorbed species, by competitive hydrogenolysis of both the M-O and the N-O bonds, leading respectively to Ph-NH-OH and Ph-NH2

Original languageEnglish (US)
Pages (from-to)2057-2062
Number of pages6
JournalStudies in Surface Science and Catalysis
Volume130 C
StatePublished - Jan 1 2000

ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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