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. 2015 May 20;5:10122. doi: 10.1038/srep10122

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A: Cross-sectional TEM image of a SnO₂ particulate film with SnO₂ nanosheets created by 20 min immersion in SnF₂ solution (NS(20 min)/PF). (a) SnO₂ nanosheet and its FFT power spectrum. (b) SnO₂ particle and its FFT power spectrum. B: Cross-sectional STEM-HAADF image of NS(20 min)/PF together with EDS element maps of Sn, O, and Pd. C: EDS spectrum of the film showing its chemical ratio. D: EELS spectra of NS(20 min)/PF. (a) SnO₂ nanosheet in the a-EELS area marked in Fig. 2B. (b) SnO₂ nanoparticle in the b-EELS in Fig. 2B. (c) SnO₂ standard from the EELS-Atlas database.