Size dependency variation in lattice parameter and valency states in nanocrystalline cerium oxide
Size dependency variation in lattice parameter and valency states in nanocrystalline cerium oxide
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DOI：
10.1063/1.2061873
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发表时间：
2005-09-26
影响因子：
4
通讯作者：
Seal, S
中科院分区：
文献类型：
--
作者：
Deshpande, S;Patil, S;Seal, S
在纳米氧化铈颗粒（3 ~ 30 nm）中，建立了颗粒尺寸与晶格参数之间的关系。晶格参数的变化归因于Ce3+的引入引起的晶格应变，这是由于氧空位的形成。观察到晶格应变随颗粒尺寸的增大而减小。随着粒径的减小，Ce3+离子浓度从17%增加到44%。(C) 2005美国物理研究所。
A correlation between the particle size and the lattice parameter has been established in nanocerium oxide particles (3-30 nm). The variation in the lattice parameter is attributed to the lattice strain induced by the introduction of Ce3+ due to the formation of oxygen vacancies. Lattice strain was observed to decrease with an increase in the particle size. Ce3+ ions concentration increased from 17% to 44% with the reduction in the particle size. (C) 2005 American Institute of Physics.