Preparation method of porous CuO-CeO2 dual-metallic oxide catalyst
A double metal oxide and catalyst technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., to achieve the effects of high controllability, simple and easy method, and large output
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Embodiment 1
[0033] Take 0.5 g Ce(NO 3 ) 3 ·6H 2 O, 1.5 g Cu(NO 3 ) 2 ·3H 2 O. Dissolve 2 g of silica colloidal particles (particle size: 50 nm) in 5 ml of deionized water, heat to 150°C, and then add 400 mg of glycine. After the reaction is over, cool and wash with deionized water several times. Obtain CuO-CeO with silica template 2 double metal oxides;
[0034] CuO-CeO containing silica template 2 Double metal oxide, dispersed in 2 mol / L sodium hydroxide solution, stirred at 80°C for 8 h, centrifuged and rinsed briefly, then etched the silica template with 2 mol / L sodium hydroxide solution again, after the reaction , washed with deionized water and ethanol, and dried to obtain CuO and CeO with a pore size of 50 nm 2 Porous CuO-CeO with a molar ratio of 84:16 2 Bimetallic oxide catalysts.
Embodiment 2
[0036] Take 1 g Ce(NO 3 ) 3 ·6H 2 O, 1 g Cu(NO 3 ) 2 ·3H 2 O. Dissolve 2 g of silica colloidal particles (particle size: 50nm) in 5 ml of deionized water, heat to 150°C, and then add 400 mg of glycine. After the reaction, cool and wash with deionized water several times to obtain CuO-CeO with silica template 2 double metal oxides;
[0037] CuO-CeO containing silica template 2 Double metal oxide, dispersed in 2 mol / L sodium hydroxide solution, stirred at 80°C for 8 h, centrifuged and rinsed briefly, then etched the silica template with 2 mol / L sodium hydroxide solution again, after the reaction , washed with deionized water and ethanol, and dried to obtain CuO and CeO with a pore size of 50 nm 2 Porous CuO-CeO with a molar ratio of 64:36 2 Bimetallic oxide catalysts.
Embodiment 3
[0039] Take 1.5 g Ce(NO 3 ) 3 ·6H 2 O, 0.5 g Cu(NO 3 ) 2 ·3H 2 O. Dissolve 2 g of silica colloidal particles (particle size: 50 nm) in 5 ml of deionized water, heat to 150°C, and then add 400 mg of glycine. After the reaction is over, cool and wash with deionized water several times. Obtain CuO-CeO with silica template 2 double metal oxides;
[0040] CuO-CeO containing silica template 2 Double metal oxide, dispersed in 2 mol / L sodium hydroxide solution, stirred at 80°C for 8 h, centrifuged and rinsed briefly, then etched the silica template with 2 mol / L sodium hydroxide solution again, after the reaction , washed with deionized water and ethanol, and dried to obtain CuO and CeO with a pore size of 50 nm 2 Porous CuO-CeO with a molar ratio of 36:64 2 Bimetallic oxide catalysts.
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