Preparation method and application of 0D/1D/2D composite magnesium-aluminum bimetallic oxide nano catalytic material
A technology of bimetallic oxides and nanocatalytic materials, which is applied in the preparation of metal/metal oxide/metal hydroxide catalysts, organic compounds, catalyst activation/preparation, etc. The surface active sites of dimensional materials are easy to be covered and other problems, so as to achieve the effect of promoting the application of reduction performance, improving the catalytic ability of materials, and high catalytic efficiency.
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[0050] Preparation of Pd-W-LDO nanocatalytic materials:
[0051] (1) Add magnesium chloride hexahydrate (70 mmol) and aluminum chloride hexahydrate (35 mmol) with a molar ratio of Mg / Al=2:1 into 50 mL of deionized water, stir until completely dissolved to obtain magnesium-aluminum mixed salt solution. Then add urea (25 mmol) to the magnesium-aluminum mixed salt solution and stir until completely dissolved. Pour the obtained colorless and clear mixed solution into a polytetrafluoroethylene reactor liner with a capacity of 100 mL, then place the liner in the stainless steel shell of the reaction kettle to seal it, place it in an oven to keep warm, and set the temperature rise rate of the oven to be 5°C / min, the holding temperature was 120°C, the holding time was 24 h, then cooled to room temperature, the white precipitate at the bottom was taken out, collected by centrifugation, washed 4 times with deionized water, and placed in a freeze dryer at -53°C to freeze dry 12 h, obta...
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