Patent ID: 11865520
Assignee: SHANDONG SINOCERA FUNCTIONAL MATERIAL CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC B  F  Y | IPC B

Claim 8:
9. The preparation method for the cerium-zirconium solid solution according to claim 7, wherein the step 2) comprises the following steps:
{circle around (1)} adding an alkaline precipitant to the initial mixture until the pH of the solution is 1.0-2.5; adding 30% of an aqueous solution of hydrogen peroxide to the acidic initial mixture according to the amount of trivalent cerium ions and tetravalent cerium ions, and stirring at least 1 hour for a second hydrothermal reaction; and
{circle around (2)} adding a precipitant to adjust the pH of the solution to 10-11, and aging the solution for at least 1 hour to obtain the precursor solution.