763756

Cerium(IV) oxide-yttria doped

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

• Sinônimo(s): 20YDC, YDC-20, YDC20, Cerium yttrium oxide, YDC, Yttria doped ceria, Yttrium doped ceria
• Fórmula empírica (Notação de Hill): CeO₂/Y₂O₃
• Número CAS: 170033-03-1
• Número MDL: MFCD04039918
• Código UNSPSC: 26111700
• ID de substância PubChem: 329767074
• NACRES: NA.23

Propriedades

• Ensaio: 99.9% trace metals basis
• forma: nanopowder
• composição: yttria, 20 mol %
• características do produto alternativo mais ecológico: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• tamanho de partícula: <50 nm (TEM)
• categoria alternativa mais ecológica: , Enabling
• cadeia de caracteres SMILES: O=[Ce]=O.O=[Y]O[Y]=O
• InChI: 1S/Ce.5O.2Y
• chave InChI: XVLUKJGVKWVXMP-UHFFFAOYSA-N

Descrição

Descrição geral

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.

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Click here for more details.

Aplicação

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.

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable