Effects of Nb doping on the TiO2 anatase-to-rutile phase transition
作者： J. Arbiol , J. Cerdà , G. Dezanneau , A. Cirera , F. Peiró
DOI: 10.1063/1.1487915
关键词:
摘要: We study the influence of Nb doping on TiO2 anatase-to-rutile phase transition, using combined transmission electron microscopy, Raman spectroscopy, x-ray diffraction and selected area analysis. This approach enabled transition hindering to be clearly observed for low Nb-doped samples. Moreover, there was clear grain growth inhibition in samples containing Nb. The use high resolution microscopy with our provides an innovative perspective compared previous research this issue. Our analysis shows that niobium is segregated from anatase structure before during transformation, leading formation NbO nanoclusters surface rutile nanoparticles.
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