II International Symposium on Carbon for Catalysis ABSTRACTS

PP-<strong>II</strong>-3
prepared, characterized and tested in wet air oxidation of aniline, phenol and Cl-phenol. The
experiments were performed in batch autoclave reactors of different constructions (V=200 ml
and V=500 ml) at T=160 – 200 o C and P O2 =0.3-1.0 MPa. The most promising results show
that the Sibunit-supported catalysts have the highest catalytic activity for oxidation of
different molecules and degradation of all the intermediate organic compounds to CO 2 . It is
necessary to note that the activity of Sibunit is very high, so we have investigated the nature
of Sibunit catalytic activity by various methods. After testing and analysis of possible variants
(e.g. formation of the radical generating surface species, the presence of catalytically active
impurities Fe and Cu, peculiar properties of the Sibunit structure) we have came to the
conclusion that the presence of active sites, with O-containing functional groups, explains the
Sibunit catalytic activity in some cases. Overall concentration of O-containing groups was
measured by IR-spectroscopy and it is equal to 0.1±0.05 mmol/g Sibunit.
The catalytic and adsorptive properties of promoted Ru-CeO 2 /C catalysts are considered
explicitly as the examples of application of offered principles of design for creation of the
catalysts for practical use in clearing of industrial wastewater. Principally, three aims were
identified and solved: (1) minimization of Ru loading in the catalyst, (2) introduction of
promoters to provide complete oxidation of organic compounds adsorbed on the catalyst
surface, and (3) prevention of the leaching of active component. The developed techniques of
catalysts synthesis have given us a possibility to solve the indicated problems in the best way.
Acknowledgment: The financial support of this study by INTAS (grants Nrs. 00-129 and
05-1000007-420) and the Russian Foundation for Basic Research
(grant 05-03-22004-CNRS_а) is gratefully acknowledged.
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