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. 2019 Dec 26;23(1):100797. doi: 10.1016/j.isci.2019.100797

Figure 2.

Figure 2

Microstructure Characterization of D-β-MnO2

(A) Crystal structure of rutile-type D-β-MnO2; (B) XRD patterns of commercial β-MnO2 and D-β-MnO2; (C) SEM, (D) TEM, (E) HR-TEM, and (F) EDX mapping images of Mn and O elements of D-β-MnO2 sample.