Open AccessPt-Rh/<FONT FACE=Symbol>g</FONT> Al2O3 Benzene Hydrogenation Reaction as a Characterization Technique
Author(s) -
N.M. da Fonseca,
T.G. Soares Neto,
M.N.S.C. Roma,
Judith Felcman,
D.S. Cunha,
G.M. Cruz
Publication year - 1998
Publication title -
brazilian journal of chemical engineering/brazilian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.313
H-Index - 52
eISSN - 1678-4383
pISSN - 0104-6632
DOI - 10.1590/s0104-66321998000200016
Subject(s) - bimetallic strip , benzene , catalysis , chemisorption , metal , chemistry , materials science , nuclear chemistry , organic chemistry
Pt-Rh/Al2O3 catalysts prepared by successive incipient impregnations and coimpregnation were characterized by H2 chemisorption, temperature programmed reduction and benzene hydrogenation reaction in the vapor phase. The results showed that Rh plays the role of Pt reducting agent, which is very different from the effects of metal-metal interaction which appear mainly in solids with the highest metal contents. The most important parameter that results in bimetallic particles in the catalyst prepared by successive impregnation is the sequence of metal addition