764531
Yttrium-doped ceria
nanopowder, contains 10 mol % yttria, <50 nm particle size, 99.9% trace metals basis
别名:
10YDC, Cerium(IV) oxide-yttria doped, YDC-10, YDC10, Cerium yttrium oxide, YDC, Yttria doped ceria, Yttrium doped ceria
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关于此项目
经验公式（希尔记法）:
CeO2/Y2O3
化学文摘社编号:
PubChem Substance ID:
UNSPSC Code:
26111700
MDL number:
产品名称
氧化钇掺杂的氧化铈(IV), nanopowder, contains 10 mol % yttria, <50 nm particle size, 99.9% trace metals basis
InChI
1S/Ce.5O.2Y
SMILES string
O=[Ce]=O.O=[Y]O[Y]=O
InChI key
XVLUKJGVKWVXMP-UHFFFAOYSA-N
assay
99.9% trace metals basis
form
nanopowder
contains
10 mol % yttria
greener alternative product characteristics
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
particle size
<50 nm
mp
>400 °C
greener alternative category
, Enabling
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General description
8mol% Yttria doped ceria may be prepared by carbonate coprecipitation technique. Yttria doped ceria exihibits 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-10) 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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Application
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-10 can be used as an electrolyte in the fabrication of solid oxide fuel cells (SOFCs). A thin film of YDC-10 (~17.5 nm) effectively reduces the cathode/interfacial energy by 0.1 eV and increases the exchange current density by a factor of 4. YDC-10 can be operated with a temperature range of 300° - 500°C.
Wang, Y; et al.
Solid State Ionics, 177, 1681-1681 (2006)
Cales, B.; et al.
Journal of Physics and Chemistry of Solids, 45, 929-929 (1984)
Yttria-doped ceria anode for carbon-fueled solid oxide fuel cell
Kulkarni A, et al.
Journal of Solid State Electrochemistry, 19(2), 325-335 (2015)
Fabrication and sintering of fine yttria-doped ceria powder
Van HJ, et al.
Journal of the American Ceramic Society. American Ceramic Society, 80(4), 933-940 (1997)
A Yitbarek et al.
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