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Synergistic Effects of TiO 2 and Palladium‐Based Cocatalysts on the Selective Oxidation of Ethene to Acetic Acid on Mo–V–Nb Oxide Domains
Author(s) -
Li Xuebing,
Iglesia Enrique
Publication year - 2007
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200700593
Subject(s) - acetic acid , palladium , chemistry , acetaldehyde , colloid , oxide , inorganic chemistry , precipitation , catalysis , organic chemistry , ethanol , physics , meteorology
A great show at the Palladium : Precipitation of Mo–V–Nb oxides in the presence of colloidal TiO 2 leads to more dispersed active structures and much higher rates of ethene oxidation to acetic acid. The presence of trace amounts of palladium as supported clusters in physical mixtures (<0.05 % w/w) catalyzes the formation of acetaldehyde intermediates and leads to unprecedented rates and selectivities in the synthesis of acetic acid from ethene and O 2 .