Direct spectroscopic observation of size-dependent vacancy distribution in Y-doped CeO2
Direct spectroscopic observation of size-dependent vacancy distribution in Y-doped CeO2
复制标题
Y 掺杂 CeO2 中尺寸依赖性空位分布的直接光谱观察
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
Sangtae Kim
中科院分区：
文献类型：
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作者：
S. Sen;H. Avila;Sangtae Kim
尺寸引起的结构差异，在纳米和散装Y掺杂的CeO2（YDC）之间的氧空位有序测量使用89 Y MAS NMR光谱，表明优先关联的空位与Ce原子在纳米YDC，这可能意味着显着的尺寸效应对固体氧化物燃料电池的这种固体电解质的离子电导率。
Size-induced structural differences in the oxygen-vacancy ordering between nano- and bulk Y-doped CeO2 (YDC) were measured using 89Y MAS NMR spectroscopy, demonstrating a preferential association of the vacancies with Ce atoms in nano-YDC, which may imply pronounced size effects on the ionic conductivity of this solid electrolyte for solid oxide fuel cells.