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Relationship between surface area and crystal size of pure and doped cerium oxides 被引量：5

Relationship between surface area and crystal size of pure and doped cerium oxides
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摘要 Pure and Zr, La or Pr-doped cerium oxides were characterised by transmission electron microscopy (TEM), N2 adsorption-desorption at –196 oC and X-ray diffraction (XRD). For crystal sizes calculation, the Scherrer and Williamson-Hall equations were compared, and the relationship between surface area and crystal size was critically discussed. It was demonstrated that the Williamson-Hall equation must be used instead of the Scherrer equation to calculate crystal sizes, since the latter equation underestimated ... Pure and Zr, La or Pr-doped cerium oxides were characterised by transmission electron microscopy (TEM), N2 adsorption-desorption at –196 oC and X-ray diffraction (XRD). For crystal sizes calculation, the Scherrer and Williamson-Hall equations were compared, and the relationship between surface area and crystal size was critically discussed. It was demonstrated that the Williamson-Hall equation must be used instead of the Scherrer equation to calculate crystal sizes, since the latter equation underestimated ...
作者 C. Bueno-Ferrer S. Parres-Esclapez D. Lozano-Castelló A. Bueno-López
机构地区 Analytical Chemistry Inorganic Chemistry Department
出处 《Journal of Rare Earths》 SCIE EI CAS CSCD 2010年第5期647-653,共7页 稀土学报（英文版）
基金 Project supported by the Spanish Ministry of Science and Innovation (CIT-420000-2009-48 project, partially funded with FEDER resources)
关键词 CERIA XRD N2 adsorption crystal size surface area rare earths ceria XRD N2 adsorption crystal size surface area rare earths
分类号 O731 [理学—晶体学]
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参考文献40

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Journal of Rare Earths
2010年 第5期

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