Figure 5.

Characterization of the as-prepared Eu3+:ACP (5 mol% Eu3+) porous nanospheres: (a, b) TEM micrographs; (c) N2 adsorption-desorption isotherm; and (d) BJH pore size distribution curve.

Chen et al. Nanoscale Research Letters 2011 6:67   doi:10.1186/1556-276X-6-67
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