Catalysts Based on Porous Polyaromatic Frameworks for Deep Oxidative Desulfurization of Model Fuel in Biphasic Conditions

The first example of an application of porous aromatic frameworks (PAFs) in synthesis of catalysts for oxidative desulfurization was described. The mesoporous aromatic framework with a diamondlike structure was modified with tungsten and molybdenum carbonyls, and synthesized catalysts were successfully used for low-temperature oxidation of organic sulfides. The obtained materials were characterized by low-temperature nitrogen adsorption/desorption, transmission electron microscopy, atomic emission spectroscopy, and X-ray photoelectron spectroscopy techniques. It was shown that the polymer did not undergo oxidation and retained its structure in the presence of hydrogen peroxide and tert-butyl hydroperoxide. The catalysts possessed high activity because of the hydrophobic nature of the carrier and their high surface area.