Figure 3.

FESEM images. FESEM images of (a) the pristine CNTs, (b) the flower-like MnO2 powder synthesized by hydrothermal reaction, and (c) the MnO2/CNT nanocomposite synthesized by hydrothermal reaction. (d) A magnified FESEM image of the MnO2/CNT nanocomposite synthesized by hydrothermal reaction.

Xia et al. Nanoscale Research Letters 2012 7:33   doi:10.1186/1556-276X-7-33
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