Figure 1 | Scientific Reports

Figure 1

From: Ordered mesoporous porphyrinic carbons with very high electrocatalytic activity for the oxygen reduction reaction

Figure 1

Synthetic strategy and characterisation of M-OMPC catalysts.

(a) Schematic synthetic strategy. The M-OMPC catalysts were synthesized via a nanocasting method that employed OMSs as templates and metalloporphyrins as the carbon source. The high temperature pyrolysis resulted in an OMS/carbon composite, after which the final M-OMPC catalysts were generated through the removal of the OMS template by HF etching. Grey, blue, green, orange, red and white spheres represent C, N, Fe, Co, O and H, respectively. (b) TEM image and the corresponding Fourier diffractogram (inset) of FeCo-OMPC templated from SBA-15 mesoporous silica showing hexagonal arrays of uniform carbon nanorods and mesopores generated between the nanorods. (c) HAADF STEM image of FeCo-OMPC catalyst. (d) EELS at the region of the red spot in the HAADF STEM image.

Back to article page