Open AccessPt-Rh/<FONT FACE=Symbol>g</FONT> Al2O3 Influence of Catalyst Preparation Methods on Metallic Particle Dispersion and Size Distribution
Author(s) -
N.M. da Fonseca,
Gérald Djèga-Mariadassou,
JeanMarie Manoli,
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/s0104-66321998000200015
Subject(s) - catalysis , metal particle , dispersion (optics) , metal , particle (ecology) , materials science , chemistry , physics , metallurgy , optics , organic chemistry , oceanography , geology
- Pt-Rh/Al2O3 catalysts were prepared by successive incipient impregnations or coimpregnation. Characterization was achieved by H2 chemisorption and transmission electron microscopy. It was verified that method of preparation, ratio of metal weights and sequence of deposition are factors that result in very distinct catalysts