Synthesis and characterization of Pd-Ni catalysts supported on KIT-6 and their application in cyclohexane oxidation using molecular oxygen

Homoselective synthesis of tetrazole derivatives using copper complex anchored on mesoporous KIT‐6 as a reusable, highly efficient, and environmentally green nanocatalyst

“…along with H1-hysteretic loops according to the IUPAC nomenclature. 51,[80][81][82][83] These diagrams displayed the existence of large channel-like pores within a narrow pore size distribution range. 85 The summarized textural parameters of bare KIT-6 and KIT-6@DABP@Cu such as average pore diameter, surface area, and total pore volume are listed in Table 1.…”

Constructing Defective Co3V2O8 Hexagonal Prism for Solvent-free Selective Oxidation of Cyclohexane: Strategy of Ionic Liquid Mediation

“…The single metal oxide MnO x and other composite metal oxides such as LaCoO 3 , Mn 2 Co 3 O x , CoMoO 4, Co 3 O 4 –CeO 2 , and VAlPO 4 show catalytic activity with a KA oil yield of below 8%. ,− As the Ce 0.5 Mn 0.5 O x solid solution, it was successfully fabricated according to the structural direction of [Bmim]­[Tf 2 N], which shows excellent low-temperature catalytic activity of cyclohexane oxidation while under the synergistic effect of the acetonitrile solvent . Other transition metal immobilized catalysts, including CoFe 2 O 4 /SiO 2 , Co/SBA-15, and Co-SAPO-5-0.2 maintained the KA oil yield below 8%. ,, In addition, noble metal catalysts such as Au/SiO 2 , PdNi/KIT-6, and Cl–RhFe have improved the yield of KA oil to more than 8%, while their scarcity and expensive value limited their application. − The carbon materials o -CNT-500 displayed an inferior activity despite it can initiate the free radical to ensure the progress of the reaction . Therefore, defective CVO catalysts constructed by ILs mediation exhibited a high KA oil yield, as promising and efficient heterogeneous catalysts in solvent-free selective oxidation of cyclohexane.…”

Synthesis of mesoporous Pt@KIT−6/SAPO−11 VIA in situ encapsulation to catalyze the decarboxylation of oleic acid to C8–C17 alkanes

“…Preparation of KIT-6 KIT-6 molecular sieves were synthesized using the method reported by Reisi et al 25 In this process, a 6 g quantity of P123 was dissolved in a mixture of 217 g deionized water and 11.8 g of an HCl solution (12 mol/L) with stirring at 35 °C for 2 h. Either 0, 0.5, 1.0, or 1.5 mL of a chloroplatinic acid solution (0.039 mol/L) was subsequently added to the mixture, followed by continued stirring for 1 h. Following this, 6 g n-butanol was added and stirring was continued for a further 1 h. At this point, 12.9 g TEOS was added to the above mixture and stirring was maintained for 24 h at 35 °C, after which the mixture was transferred to a Teflon-lined autoclave and heated at 100 °C for 24 h. After the reaction, the product was removed by filtration, washed with ethanol, and dried at 100 °C for 5 h. Finally, the solid was calcined by heating in air at 550 °C (applying a heating rate of 1 °C/min) for 4 h to obtain the KIT-6 molecular sieves. The samples made using 0, 0.5, 1.0, and 1.5 mL chloroplatinic acid, respectively, are referred to herein as KIT-6, 0.4 wt% Pt@KIT-6, 0.8 wt% Pt@KIT-6, and 1.2 wt% Pt@KIT, respectively.…”

“…KIT−6 molecular sieves possess a cubic, three-dimensional, and symmetrical Ia3d structure that provides a large internal volume, enhances the dispersion of metal particles, and effectively reduces resistance to the mass transfer of reactants. 25 In addition, KIT−6 has mesoporous channels, a high specific surface area, and adjustable pore sizes. 26 These materials have therefore been widely used in catalysis, adsorption, and other fields.…”