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. 2017 Feb 23;8:14559. doi: 10.1038/ncomms14559

Figure 1. Electron microscopy of δ-MnO2 nanosheets.

Figure 1

(a) SEM image and (b) bright-field TEM image of exfoliated MnO2 nanosheets, (c) high-magnification SEM image and (d) SEM image of reassembled MnO2 nanostructures treated in pH=2 solution for 24 h. Scale bar, 50 nm (a–c); 500 nm (d).