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Low-cost micro-aged rare earth oxide doped zirconium oxide electrolyte
The invention discloses a low-cost micro-aged rare earth oxide doped zirconium oxide electrolyte and a preparation method thereof, and belongs to the technical field of solid oxide fuel cells. The expression of the electrolyte is (Yb2O3) x (Sc2O3) 0.1-x (CeO2) 0.01 (ZrO2) 0.89, wherein x is more than 0 and less than or equal to 0.1; the electrolyte preparation method is a one-step solid phase method. According to the invention, ytterbium oxide is used as a dopant to co-dope scandium oxide and cerium oxide stabilized zirconium oxide, the usage amount of scandium oxide is reduced, the operation stability of the electrolyte is improved while the production cost is reduced, the electrolyte is directly prepared by a one-step solid phase method, the electrolyte powder does not need to be pre-sintered into a phase in advance, the process flow is simplified, and the production cost is reduced. And the problems of high raw material price, serious powder agglomeration, low sintering activity and the like of a liquid phase method are avoided, the production cost is saved, and the method has a good industrial application prospect.
本发明公开了一种低成本微老化的稀土氧化物掺杂氧化锆电解质及其制备方法，属于固体氧化物燃料电池技术领域。该电解质的表达式为(Yb2O3)x(Sc2O3)0.1‑x(CeO2)0.01(ZrO2)0.89，0＜x≤0.1；所述的电解质制备方法为一步固相法。本发明以氧化镱为掺杂剂对氧化钪、氧化铈稳定的氧化锆进行共掺杂，降低了氧化钪的使用量，实现在降低生产成本的同时提高电解质的运行稳定性，通过一步固相法直接制备电解质，无需提前将电解质粉体预烧成相，简化了工艺流程，也避免了液相法存在的原料价格昂贵、粉体团聚严重、烧结活性低等问题，节约了生产成本，具有良好的产业化应用前景。
Low-cost micro-aged rare earth oxide doped zirconium oxide electrolyte
The invention discloses a low-cost micro-aged rare earth oxide doped zirconium oxide electrolyte and a preparation method thereof, and belongs to the technical field of solid oxide fuel cells. The expression of the electrolyte is (Yb2O3) x (Sc2O3) 0.1-x (CeO2) 0.01 (ZrO2) 0.89, wherein x is more than 0 and less than or equal to 0.1; the electrolyte preparation method is a one-step solid phase method. According to the invention, ytterbium oxide is used as a dopant to co-dope scandium oxide and cerium oxide stabilized zirconium oxide, the usage amount of scandium oxide is reduced, the operation stability of the electrolyte is improved while the production cost is reduced, the electrolyte is directly prepared by a one-step solid phase method, the electrolyte powder does not need to be pre-sintered into a phase in advance, the process flow is simplified, and the production cost is reduced. And the problems of high raw material price, serious powder agglomeration, low sintering activity and the like of a liquid phase method are avoided, the production cost is saved, and the method has a good industrial application prospect.
本发明公开了一种低成本微老化的稀土氧化物掺杂氧化锆电解质及其制备方法，属于固体氧化物燃料电池技术领域。该电解质的表达式为(Yb2O3)x(Sc2O3)0.1‑x(CeO2)0.01(ZrO2)0.89，0＜x≤0.1；所述的电解质制备方法为一步固相法。本发明以氧化镱为掺杂剂对氧化钪、氧化铈稳定的氧化锆进行共掺杂，降低了氧化钪的使用量，实现在降低生产成本的同时提高电解质的运行稳定性，通过一步固相法直接制备电解质，无需提前将电解质粉体预烧成相，简化了工艺流程，也避免了液相法存在的原料价格昂贵、粉体团聚严重、烧结活性低等问题，节约了生产成本，具有良好的产业化应用前景。
Low-cost micro-aged rare earth oxide doped zirconium oxide electrolyte
一种低成本微老化的稀土氧化物掺杂氧化锆电解质
CHEN KONGFA (Autor:in) / LIANG FUJUN (Autor:in) / AINA (Autor:in)
23.01.2024
Patent
Elektronische Ressource
Chinesisch
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