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The N2 adsorption-desorption isotherms of: (a) Pure silica aerogel and (b) Fe2O3/SiO2 aerogel, and (c) the pore size distribution of pure silica aerogel and Fe2O3/SiO2 aerogel; a comparison of microporous distribution of pure silica aerogel and doped aerogel is inset.
