Removal of organometallic compounds from natural feedstock by surface organometallic chemistry on metals: Hydrogenolysis of AsPh3 on nickel supported on alumina

Yuri Anton Ryndin, Jean Pierre Candy*, Blaise Didillon, Laurent Savary, Jean-Marie Maurice Basset

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Hydrogenolysis of triphenylarsine (AsPh3) on Ni/Al2O3 at 172 °C and 6 bars of hydrogen occurs selectively on the nickel particles and not on the alumina support. According to the kinetic, magnetic and XRD data, the reaction of AsPh3 with the surface Nis-H produces benzene and the surface organometallic fragments Nis-[AsPhx]y. Stepwise hydrogenolyis of these fragments leads progressively, with time, to the formation of arsenic 'adatoms', which migrate rapidly inside the nickel particles. The reaction is stopped after complete formation of a well defined Ni-As alloy, which has been fully characterized by X-ray diffraction.

Original languageEnglish (US)
Pages (from-to)423-427
Number of pages5
JournalComptes Rendus de l'Academie des Sciences - Series IIc: Chemistry
Volume3
Issue number6
DOIs
StatePublished - Jan 1 2000

Keywords

  • Arsenic removal
  • AsPh hydrogenolysis on Ni
  • Surface organometallic chemistry on metals

ASJC Scopus subject areas

  • Chemistry(all)

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