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Copper-thorium oxide catalysts prepared with different atomic ratios Cu : Th by coprecipitation of hydroxides and calcination in dry air at 1073 K, have been characterized by electron paramagnetic resonance (EPR) and UV-VIS spectroscopies before and after being tested as catalysts for the decomposition of isopropyl alcohol. The catalysts are selective for dehydrogenation to form acetone only. The simultaneous presence of Cu2+, Cu+ and/or Cuo in the thoria with a ratio of (Cuo + Cu+)/Cu2+ z 2 is required for activity toward isopropyl alcohol dehydrogenation.

No abstract

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