Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cerium oxide-based electrolyte as well as preparation method and application thereof
The invention discloses a cerium oxide-based electrolyte as well as a preparation method and application thereof, and relates to the technical field of electrolyte materials. The chemical composition of the cerium oxide-based electrolyte is GdxCe (1-x-y) MeyO (2-3x/2), Me is one or more of Zr, Hf, Ta, Nb, W, Mo, Si, Ge, P and the like, the value of x is between 0.01 and 0.4, and the value of y is between 0.01 and 0.3. The GdxCe < 1-x-y > MeyO < 2-3x/2 > electrolyte prepared by the method is high in ionic conductivity and transference number, wide in raw material source and simple in preparation process. Wherein the conductivity of the Gd < 0.1 > Ce < 0.89 > Zr < 0.01 > O < 1.95 > at 400 DEG C reaches 1.57 * 10 <-3 > S/cm, and the oxygen ion migration number gt at 700 DEG C in a reducing atmosphere (3% H2-Ar); the electrolyte is a cerium oxide-based electrolyte with good conductivity and strong reduction resistance at medium and low temperatures, and can be applied to medium and low temperature solid oxide fuel cells.
本发明公开了一种氧化铈基电解质及其制备方法和应用，涉及电解质材料技术领域。氧化铈基电解质的化学组成为GdxCe1‑x‑yMeyO2‑3x/2，Me分别为Zr、Hf、Ta、Nb、W、Mo、Si、Ge、P等元素中的一种或几种，其中x的数值在0.01‑0.4之间，y的数值在0.01‑0.3之间。本发明制备的GdxCe1‑x‑yMeyO2‑3x/2电解质，其离子电导率与迁移数高，原料来源广，制备工艺简单。其中Gd0.1Ce0.89Zr0.01O1.95在400℃时电导率达到1.57×10‑3S/cm，在700℃时还原气氛下(3％H2‑Ar)氧离子迁移数>0.9，是一种在中低温下具有良好电导率且抗还原能力强的氧化铈基电解质，可应用于中低温固态氧化物燃料电池。
Cerium oxide-based electrolyte as well as preparation method and application thereof
The invention discloses a cerium oxide-based electrolyte as well as a preparation method and application thereof, and relates to the technical field of electrolyte materials. The chemical composition of the cerium oxide-based electrolyte is GdxCe (1-x-y) MeyO (2-3x/2), Me is one or more of Zr, Hf, Ta, Nb, W, Mo, Si, Ge, P and the like, the value of x is between 0.01 and 0.4, and the value of y is between 0.01 and 0.3. The GdxCe < 1-x-y > MeyO < 2-3x/2 > electrolyte prepared by the method is high in ionic conductivity and transference number, wide in raw material source and simple in preparation process. Wherein the conductivity of the Gd < 0.1 > Ce < 0.89 > Zr < 0.01 > O < 1.95 > at 400 DEG C reaches 1.57 * 10 <-3 > S/cm, and the oxygen ion migration number gt at 700 DEG C in a reducing atmosphere (3% H2-Ar); the electrolyte is a cerium oxide-based electrolyte with good conductivity and strong reduction resistance at medium and low temperatures, and can be applied to medium and low temperature solid oxide fuel cells.
本发明公开了一种氧化铈基电解质及其制备方法和应用，涉及电解质材料技术领域。氧化铈基电解质的化学组成为GdxCe1‑x‑yMeyO2‑3x/2，Me分别为Zr、Hf、Ta、Nb、W、Mo、Si、Ge、P等元素中的一种或几种，其中x的数值在0.01‑0.4之间，y的数值在0.01‑0.3之间。本发明制备的GdxCe1‑x‑yMeyO2‑3x/2电解质，其离子电导率与迁移数高，原料来源广，制备工艺简单。其中Gd0.1Ce0.89Zr0.01O1.95在400℃时电导率达到1.57×10‑3S/cm，在700℃时还原气氛下(3％H2‑Ar)氧离子迁移数>0.9，是一种在中低温下具有良好电导率且抗还原能力强的氧化铈基电解质，可应用于中低温固态氧化物燃料电池。
Cerium oxide-based electrolyte as well as preparation method and application thereof
一种氧化铈基电解质及其制备方法和应用
WANG CHUNHAI (Autor:in) / YAN WEIXIN (Autor:in) / JI ZHILIN (Autor:in) / FENG XINYUAN (Autor:in) / LUO FA (Autor:in)
23.02.2024
Patent
Elektronische Ressource
Chinesisch
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