The fabrication of IMo₆@iPAF-1 as an enzyme mimic in heterogeneous catalysis for oxidative desulfurization under O₂ or air

Abstract

Na5[IMo6O24]·3H2O and a porous aromatic framework (iPAF-1) were used to build an off-the-shelf building material (IMo6@iPAF-1) to realize the highly efficient oxidation of organic sulfurs like oxygenase.

Aerobic Oxidative Desulfurization by Nanoporous Tungsten Oxide with Oxygen Defects

“…Therefore, the shortened catalytic induction period in the ODS test could be related to the boosted generation of • O 2 − , which was attributed to the unique structure that provided an expanded reactive interface and abundant catalytic sites for the activation of O 2 (Scheme 1). According to the previous studies, 58,59 W(V) would transfer to W(VI) by the activation of oxygen to generate superoxide radical species. The sulfur compounds would be oxidized to their corresponding sulfones by the superoxide radical species.…”

Synthesis of defected UIO‐66 with boosting the catalytic performance via rapid crystallization

“…In the ODS system, the commonly used oxidants, include tert ‐butyl hydroperoxide (TBHP), [ 16 ] hydrogen peroxide (H 2 O 2 ), [ 17 ] molecular oxygen (O 2 ), [ 18 ] and cyclohexanone peroxide (CHP). [ 19 ] Among these oxidants, H 2 O 2 has been widely used due to its low price, environmentally friendly, and remarkable oxidation performance.…”

“…[14] The extraction and oxidation processes are carried out at the same time, which promotes the oxidation reaction and improves the desulfurization efficiency. [15] In the ODS system, the commonly used oxidants, include tert-butyl hydroperoxide (TBHP), [16] hydrogen peroxide (H 2 O 2 ), [17] molecular oxygen (O 2 ), [18] and cyclohexanone peroxide (CHP). [19] Among these oxidants, H 2 O 2 has been widely used due to its low price, environmentally friendly, and remarkable oxidation performance.…”

Engineering Highly Dispersed Pt Species by Defects for Boosting the Reactive Desulfurization Performance

“…Among them, catalytic reaction desulfurization is an extremely important reaction for the removal of aromatic sulfur compounds in diesel. − Reactive desulfurization mainly lies in the oxidation of sulfide, and its polar oxidation products are easier to be extracted and adsorbed from the reaction liquid (Scheme ). The reported catalysts mainly include metal–organic frameworks, − metal oxides, − polyoxometalate, ,, ionic liquids, and eutectic solvents. − Besides, the Pt-based catalysts also have positive effects in catalytic oxidation desulfurization systems using air as the oxidant. , The precious metal Pt is expensive but shows high catalytic activity. A small amount of Pt can trigger the catalytic reaction during the catalytic process.…”

“…6−9 Reactive desulfurization mainly lies in the oxidation of sulfide, and its polar oxidation products are easier to be extracted and adsorbed from the reaction liquid (Scheme 1). 10 The reported catalysts mainly include metal−organic frameworks, 11−14 metal oxides, 15−20 polyoxometalate, 9,21,22 ionic liquids, and eutectic solvents. 23−28 Besides, the Pt-based catalysts also have positive effects in catalytic oxidation desulfurization systems using air as the oxidant.…”