763756

Cerium(IV) oxide-yttria doped

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

• 동의어(들): 20YDC, YDC-20, YDC20, Cerium yttrium oxide, YDC, Yttria doped ceria, Yttrium doped ceria
• 실험식(Hill 표기법): CeO₂/Y₂O₃
• CAS Number: 170033-03-1
• MDL number: MFCD04039918
• UNSPSC 코드: 26111700
• PubChem Substance ID: 329767074
• NACRES: NA.23

속성

• Quality Level: 100
• 분석: 99.9% trace metals basis
• 형태: nanopowder
• 구성: yttria, 20 mol %
• 환경친화적 대안 제품 특성: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• 입자 크기: <50 nm (TEM)
• 환경친화적 대안 카테고리: , Enabling
• SMILES string: O=[Ce]=O.O=[Y]O[Y]=O
• InChI: 1S/Ce.5O.2Y
• InChI key: XVLUKJGVKWVXMP-UHFFFAOYSA-N

설명

일반 설명

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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애플리케이션

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.

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable