Figure 3.

SEM images of two thicknesses of Fe catalyst on CF after annealing. (a) 5 nm of Fe catalyst on CF after annealing with the inset showing the EDS analysis of the circled area and (b) 10 nm of Fe catalyst on CF after annealing.

Gao et al. Nanoscale Research Letters 2012 7:651   doi:10.1186/1556-276X-7-651
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