6. The oxidation catalysts are second in usage only to polymerization catalysts and most of industrial oxidation process

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6. The oxidation catalysts are second in usage only to
polymerization catalysts and most of industrial oxidation processes
tend to use chlorine or organic peroxides. Whereas the chlorine
processes produce large amounts of chloride salts and significant
amounts of chlorinated organic by-products, organic peroxides are
expensive. To remedy these problems, a team led by Graham J.
Hutchings, professor of physical chemistry at Cardiff University,
in Wales, has shown that gold nanoparticles supported on carbon
activate molecular oxygen in air to convert alkenes to partial
oxidation products such as epoxides at atmospheric pressure and
temperatures of 60–80 °C (Nature 2005, 437, 1132).
(a) Discuss the green aspects of Dr. Hutchings work
(b) Discuss the effect of the gold nanoparticles size on the
oxidation process
(c) Suggest ideas to improve the oxidation process