TY - JOUR
T1 - Removal of organometallic compounds from natural feedstock by surface organometallic chemistry on metals
T2 - Hydrogenolysis of AsPh3 on nickel supported on alumina
AU - Ryndin, Yuri Anton
AU - Candy, Jean Pierre
AU - Didillon, Blaise
AU - Savary, Laurent
AU - Basset, Jean-Marie Maurice
PY - 2000/1/1
Y1 - 2000/1/1
N2 - 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.
AB - 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.
KW - Arsenic removal
KW - AsPh hydrogenolysis on Ni
KW - Surface organometallic chemistry on metals
UR - http://www.scopus.com/inward/record.url?scp=0034311142&partnerID=8YFLogxK
U2 - 10.1016/S1387-1609(00)01136-1
DO - 10.1016/S1387-1609(00)01136-1
M3 - Article
AN - SCOPUS:0034311142
SN - 1387-1609
VL - 3
SP - 423
EP - 427
JO - Comptes Rendus de l'Academie des Sciences - Series IIc: Chemistry
JF - Comptes Rendus de l'Academie des Sciences - Series IIc: Chemistry
IS - 6
ER -