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. 2015 Nov 5;5:16195. doi: 10.1038/srep16195

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FESEM morphology images and cross section thickness of: (a₁, a₂) pristine MnO₂, (b₁, b₂) M30, (c₁, c₂) M60, and (d₁, d₂) M90; TEM images of: (e) M30 and (f) M60.