一种Ce掺杂单相复杂尖晶石的制备方法和应用
The preparation of Ce-doped single-phase complex spinel oxides by microwave heating solves the problems of high cost and complex preparation of OER catalysts, and achieves a high efficiency improvement in OER catalytic performance.
CN118479562BActive Publication Date: 2026-07-17SOUTHEAST UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTHEAST UNIV
- Filing Date
- 2024-05-15
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing OER catalysts are expensive, scarce in resources, and have complex preparation processes, making it difficult to achieve large-scale application. Furthermore, transition metal oxides have insufficient catalytic performance.
Method used
Ce-doped single-phase complex spinel oxide (CexCo(1-x)/4Ni(1-x)/4Mn(1-x)/4Fe(1-x)/4)3O4) was prepared by microwave heating. The electronic structure was adjusted by controlling the doping ratio of rare earth element Ce to improve catalytic performance.
Benefits of technology
Under low-cost conditions, the catalytic performance of OER catalysts is significantly improved, the preparation process is simplified, and the preparation time is shortened.
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Figure CN118479562B_ABST
Abstract
本发明公开了一种Ce掺杂单相复杂尖晶石的制备方法和应用，本发明通过控制稀土元素Ce掺入比例制备了一系列单相高熵尖晶石氧化物(CexCo(1‑x) / 4Ni(1‑x) / 4Mn(1‑x) / 4Fe(1‑x) / 4)3O4(0.01≤x≤0.05)样品。Ce含量不同的样品表现出不同的结构、性能差异。结构方面，当Ce含量较低时(0.01≤x≤0.05)，样品呈现单相尖晶石结构，Ce含量较高时(x≥0.1)样品内出现CeO2颗粒，为常见的尖晶石‑氧化铈复合结构。在电催化方面，少量掺杂Ce能够提高催化剂催化活性，其中(Ce0.02Co0.245Ni0.245Mn0.245Fe0.245)3O4的性能最优。
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