Figure 2: Microstructure characterization. | Nature Communications

Figure 2: Microstructure characterization.

From: Nanoporous gold supported cobalt oxide microelectrodes as high-performance electrochemical biosensors

Figure 2

(a) Low-magnification and (b) cross-section SEM images of seamless S/NPG microwire. (a) Scale bar, 25 μm; (b) scale bar, 300 nm. Top-view SEM images of (c) bare S/NPG and (d) S/NPG/Co3O4 hybrid with the characteristic length of ~300 nm. (c,d) Scale bar, 300 nm. (e) High-resolution transmission electron microscope (HRTEM) image of Au/Co3O4 interfacial structure. (e) Scale bar, 2 nm. (f) Surface-enhanced Raman spectrum of seamless S/NPG/Co3O4 hybrid microwire.

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