Cerium basis composite oxides doped precious metal integer catalyzer and method of manufacturing the same
A technology of composite oxides and monolithic catalysts, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of affecting catalytic activity, complex preparation process, and reducing Catalytic activity and other issues, to achieve the effect of high effective utilization, good catalytic performance and simple preparation process
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[0031] Example 1
[0032] (1) Preparation of dipping solution:
[0033] a. Prepare precious metal active component precursor solution, weigh 1.159g PdCl 2 , Add 5.0mL of 1.0mol·L -1 Dissolve in dilute hydrochloric acid to form H with a concentration of 6.954g / L 2 PdCl 4 Solution
[0034] b. Weigh 3.729g Ce(NO 3 ) 3 ·6H 2 O(AR), 0.922g Zr(NO 3 ) 4 ·5H 2 O(AR), add 11.0mL of deionized water to dissolve, prepare a mixed solution of soluble cerium salt and soluble metal zirconium salt;
[0035]c. Add 3.383g of citric acid (AR) to the above solution and stir evenly;
[0036] d. Heat the above solution in a water bath at 80°C, add 1.8mL 95% ethanol dispersant; after dispersion, add 0.96g polyethylene glycol (molecular weight M=10000) nonionic surfactant; wait for surface activity After the agent is completely dissolved, take 6.954g / L of H 2 PdCl 4 4.2mL of the solution was added to the solution; the whole step was carried out under constant stirring;
[0037] e. Heat the above solution ...
Example Embodiment
[0050] Example 2
[0051] (1) Preparation of dipping solution:
[0052] a. Prepare the precursor solution of the precious metal active component, H 2 PdCl 4 The solution was prepared according to the method in Example 1, and the concentration was 6.954g / L;
[0053] b. Weigh 2.068g Ce(NO 3 ) 3 ·6H 2 O(AR), 3.067g Zr(NO 3 ) 4 ·5H 2 O(AR), add 11.0mL of deionized water to dissolve, and prepare a mixed solution of soluble cerium salt and soluble metal zirconium salt;
[0054] c. Add 3.752g of citric acid (AR) to the above solution and stir evenly;
[0055] d. Heat the above solution in a water bath at 80°C, add 1.8mL 95% ethanol dispersant; after dispersion, add 0.96g polyethylene glycol (molecular weight M=10000) nonionic surfactant; wait for surface activity After the agent is completely dissolved, take 6.954g / L of H 2 PdCl 4 4.1 mL of solution was added to the solution; the whole step was carried out under constant stirring;
[0056] e. Heat the above solution in a water bath at 80...
Example Embodiment
[0066] Example 3
[0067] (1) Preparation of dipping solution:
[0068] a. Prepare the precursor solution of the precious metal active component, H 2 PdCl 4 The solution was prepared according to the method in Example 1, and the concentration was 6.954g / L;
[0069] b. Weigh 3.557g Ce(NO 3 ) 3 ·6H 2 O(AR), 0.879g Zr(NO 3 ) 4 ·5H 2 O(AR), add 11.0mL of deionized water to dissolve, and prepare a mixed solution of soluble cerium salt and soluble metal zirconium salt;
[0070] c. Add 3.228g of citric acid (AR) to the above solution and stir evenly;
[0071] d. Heat the above solution in a water bath at 80°C, and add 1.8 mL of 95% ethanol dispersant. After the dispersion is completed, add 0.96g polyethylene glycol (molecular weight M=10000) non-ionic surfactant; after the surfactant is completely dissolved, take 6.954g / L of H 2 PdCl 4 Add 4.0 mL of the solution to the solution; the entire step is carried out under constant stirring;
[0072] e. Heat the above solution in a water bath at...
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