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Keywords:

  • aluminophosphate;
  • autoxidation;
  • catalysis;
  • zeolites

Isolated and immobilized cobalt centers are the essential prerequisites for the heterognization of the industrially important catalysis of cyclohexane autoxidation. This study reveals inter alia a higher selectivity for the formation of cyclohexyl hydroperoxide and the suppression of cobalt deactivation when, instead of soluble cobalt salts, cobalt-modified aluminophosphates with low cobalt loading are employed as catalysts.