Figure 2.

HRTEM images and EDS pattern of SiO2· Eu2O3 HSs. (A) Mesoporous structure of SiO2 · Eu2O3. (B) The interplanar spacing of the (001) plane of Eu2O3. (C, D) EDS pattern and results of SiO2 · Eu2O3 HSs, respectively.

Li et al. Nanoscale Research Letters 2013 8:435   doi:10.1186/1556-276X-8-435
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