Figure 1.

SEM and TEM images of carbonaceous spheres, revealing details of grainy surfaces and interiors. Carbon spheres produced at (a, b) 423 and (c, d) 453 K. (e, f) Cross-sectional views revealing the interior of the carbonaceous spheres.

Zhang et al. Nanoscale Research Letters 2012 7:38   doi:10.1186/1556-276X-7-38
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