763756

氧化钇掺杂的氧化铈(IV)

nanopowder, yttria 20 mol %, <50 nm particle size (TEM), 99.9% trace metals basis

• 别名: 20YDC, YDC-20, YDC20, Cerium yttrium oxide, YDC, Yttria doped ceria, Yttrium doped ceria
• 经验公式（希尔记法）: CeO₂/Y₂O₃
• CAS号: 170033-03-1
• MDL號碼: MFCD04039918
• 分類程式碼代碼: 26111700
• PubChem物質ID: 329767074
• NACRES: NA.23

属性

• 品質等級: 100
• 化驗: 99.9% trace metals basis
• 形狀: nanopowder
• 成份: yttria, 20 mol %
• 環保替代產品特色: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• 粒徑: <50 nm (TEM)
• 環保替代類別: , Enabling
• SMILES 字串: O=[Ce]=O.O=[Y]O[Y]=O
• InChI: 1S/Ce.5O.2Y
• InChI 密鑰: XVLUKJGVKWVXMP-UHFFFAOYSA-N

说明

一般說明

8mol% Yttria doped ceria may be prepared by carbonate coprecipitation technique. Yttria doped ceria exhibits high ionic conductivity, low activation energy and small grain boundary resistance. The effect of microstructure on the electrolytic properties was investigated in detail.

Cerium(IV) oxide-yttria doped (YDC-20) is an electrolytic material that is used as an alternative to zirconia-based electrolytes. Its properties include high ionic conductivity (0.01 S cm⁻¹), electronic conductivity (3 S cm⁻¹), enhanced electrode reactions, and high oxygen surface exchange coefficient.

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應用

They are promising ceramic electrolytes for solid oxide fuel cells operating at low temperatures of 500-700°C (IT-SOFC). Doped ceria interlayers in between bulk yttria-stabilized zirconia electrolyte further enhance the performance of SOFCs.

YDC-20 can be used as an electrolyte in the fabrication of solid oxide fuel cells (SOFCs). A thin film of YDC-20 (~17.5 nm) effectively reduces the cathode/interfacial energy by 0.1 eV and increases the exchange current density by a factor of 4. It can be operated with a temperature range of 300° - 500°C.

安全信息

• 儲存類別代碼: 11 - Combustible Solids
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable