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Cerium oxide-based composite electrolyte material and preparation method thereof
The invention discloses a cerium oxide-based composite electrolyte material and a preparation method thereof, and relates to the technical field of solid oxide fuel cells, and the cerium oxide-based composite electrolyte material is prepared by compounding Ce < 0.8 > (SmLaPrYM) < 0.04 > O < 2-delta > nano powder and La < 1.9 > Ba < 0.1 > Mo < 1.85 > W < 0.15 > O < 8.95 > nano powder and sintering. The pure-phase high-entropy nano-powder with the cubic fluorite structure can be prepared by adopting an activated carbon improved sol-gel method through high-entropy component optimization and preparation process control. The problem that pure-phase high-entropy ceramic powder is difficult to obtain due to mixing nonuniformity and incomplete reaction in a traditional preparation method is solved. And the densification of the material can be realized at a lower temperature (1200 DEG C). The prepared composite electrolyte has relatively high ionic conductivity and relatively low activation energy in a medium temperature range (600-800 DEG C), and can meet the use requirements of medium-temperature SOFCs.
一种氧化铈基复合电解质材料及其制备方法，涉及固体氧化物燃料电池技术领域，由Ce0.8(SmLaPrYM)0.04O2‑δ纳米粉体和La1.9Ba0.1Mo1.85W0.15O8.95纳米粉体复合后经烧结制备得到。本发明通过优选高熵组元和制备工艺控制，采用活性炭改进的溶胶‑凝胶法可以制备出纯相的具有立方萤石结构的高熵纳米粉体。解决了传统制备方法因混合不均性和反应的不完全而难以获得纯相的高熵陶瓷粉体的难题。可以在较低的温度(1200℃)实现材料的致密化。制备的复合电解质在中温范围(600～800℃)具有较高的离子电导率和较低活化能，能够满足中温SOFCs的使用要求。
Cerium oxide-based composite electrolyte material and preparation method thereof
The invention discloses a cerium oxide-based composite electrolyte material and a preparation method thereof, and relates to the technical field of solid oxide fuel cells, and the cerium oxide-based composite electrolyte material is prepared by compounding Ce < 0.8 > (SmLaPrYM) < 0.04 > O < 2-delta > nano powder and La < 1.9 > Ba < 0.1 > Mo < 1.85 > W < 0.15 > O < 8.95 > nano powder and sintering. The pure-phase high-entropy nano-powder with the cubic fluorite structure can be prepared by adopting an activated carbon improved sol-gel method through high-entropy component optimization and preparation process control. The problem that pure-phase high-entropy ceramic powder is difficult to obtain due to mixing nonuniformity and incomplete reaction in a traditional preparation method is solved. And the densification of the material can be realized at a lower temperature (1200 DEG C). The prepared composite electrolyte has relatively high ionic conductivity and relatively low activation energy in a medium temperature range (600-800 DEG C), and can meet the use requirements of medium-temperature SOFCs.
一种氧化铈基复合电解质材料及其制备方法，涉及固体氧化物燃料电池技术领域，由Ce0.8(SmLaPrYM)0.04O2‑δ纳米粉体和La1.9Ba0.1Mo1.85W0.15O8.95纳米粉体复合后经烧结制备得到。本发明通过优选高熵组元和制备工艺控制，采用活性炭改进的溶胶‑凝胶法可以制备出纯相的具有立方萤石结构的高熵纳米粉体。解决了传统制备方法因混合不均性和反应的不完全而难以获得纯相的高熵陶瓷粉体的难题。可以在较低的温度(1200℃)实现材料的致密化。制备的复合电解质在中温范围(600～800℃)具有较高的离子电导率和较低活化能，能够满足中温SOFCs的使用要求。
Cerium oxide-based composite electrolyte material and preparation method thereof
一种氧化铈基复合电解质材料及其制备方法
TIAN CHANG'AN (author) / ZHU MINZHENG (author) / ZHAO ZHIGUANG (author) / LIU YANG (author) / CHEN CHAO (author) / WANG CAO (author) / LI ZAIBO (author)
2023-07-25
Patent
Electronic Resource
Chinese
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