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AssigneeGrirem Advanced Materials Co., Ltd.
InventorsXiaowei Huang, Qi Wang, Mei Yue, Qiang Zhong, Lei Wang, Yongke Hou, Meisheng Cui
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Provided are a cerium-zirconium composite oxide, a preparation method therefor and application of a catalyst. The cerium-zirconium composite oxide has a composite phase structure, and comprises a cerium oxide phase and a cerium-zirconium solid solution phase, or consists of two or more cerium-zirconium solid solution phases with different crystal structures and different chemical compositions, wherein the chemical formula of the cerium-zirconium solid solution phase is CexZr1-x-yMyO2, where M is at least one selected from the group consisting of a rare earth element other than cerium, a transition metal element and an alkaline earth metal element, x is 15-85 mol %, and y is 0-20 mol %.
A cerium-zirconium composite oxide, wherein the cerium-zirconium composite oxide has a composite phase structure, and comprises a cerium oxide phase and a cerium-zirconium solid solution phase, wherein the chemical formula of the cerium-zirconium solid solution phase is CexZr1-x-yMyO2, where M is at least one selected from the group consisting of a rare earth element other than cerium, a transition metal element and an alkaline earth metal element, x is 15˜85 mol %, and y is 0˜20 mol %.
A cerium-zirconium composite oxide, wherein the cerium-zirconium composite oxide consists of two or more cerium-zirconium solid solution phases with different crystal structures and different chemical compositions, wherein the chemical formula of the cerium-zirconium solid solution phase is CexZr1-x-yMyO2, where M is at least one selected from the group consisting of a rare earth element other than cerium, a transition metal element and an alkaline earth metal element, x is 15˜85 mol %, and y is 0˜20 mol %, and at least one of cerium-zirconium solid solution has a proportion of 0.1˜99.9 vol % in the cerium-zirconium composite oxide.
Dependencies are inferred from the claim text.