Figure 1 : ORR and OER electrocatalysis.

From: Advanced zinc-air batteries based on high-performance hybrid electrocatalysts

Figure 1

Strongly coupled inorganic/CNT hybrids for ORR and OER electrocatalysis with low overpotentials. (ac) Schematic structure, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images of CoO/N-CNT hybrid. (d–f) Schematic structure, SEM and TEM images of NiFe LDH/CNT hybrid. Scale bars are 200 nm, 5 nm, 200 nm and 20 nm, respectively, in b, c, e and f.