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Characterization of metal oxide nanoparticles. (A) FE-SEM of CeO2, (B) HR-TEM of CeO2, (C) CeO2 nanoparticle, (D) FFT of (C), (E) FE-SEM of TiO2, (F) HR-TEM of TiO2, (G) TiO2 nanoparticle, (H) FFT of (G), (I) FE-SEM of ZnO, (J) HR-TEM of ZnO, (K) ZnO nanoparticle, (L) FFT of (K).
