fig6
From: Fabrication of MOF-derived porous Au@Co-ZnO nanostructures with excellent C2H5OH sensing performance
Figure 6. Stability and gas selectivity results of Au@Co-ZnO nanostructure and its comparison samples. A: cyclic stability test for 100 ppm ethanol; B: response-cycle number curve; C: long-term stability test; D: response to different gases.
