Figure 3
From: Biotemplating pores with size and shape diversity for Li-oxygen Battery Cathodes
Top-down and cross-sectional SEM micrographs of MWCNT films (a,e), S-MWCNT films (b,f), and E-MWCNT films (c,d,g) with different E. coli initial cell numbers, (c) ~2.76 × 1010 and (d,g) ~8.19 × 1010 cells added during the film fabrication process. Scale bar for all figures represent 10 μm. The inset figures are high magnification images of pores with a 1 μm length scale bar. The flat planar cross sectional surfaces were prepared by ion milling to better visualize pore distribution of (f) the S-MWCNT (~1.28 × 1011 cells) and (g) E-MWCNT (~8.19 × 1010 cells) films, compared to MWCNT film (e). Because of the porosity, the S-MWCNT and E-MWCNT films were almost 1.8 times thicker than the MWCNT films, fabricated with the same amount of MWCNT.
