fig5
![Applications of <i>in situ</i> electron microscopy in oxygen electrocatalysis](https://image.oaes.cc/6a894aee-bef2-4c0f-be41-3155aa90e967/4529.fig.5.jpg)
Figure 5. (A) IL-SEM image, (B) HRTEM image and (C) EDS line scan profiles of pristine NiFe nanoparticles. (D) IL-SEM image, (E) HRTEM image and (F) EDS line scan profiles of NiFe nanoparticles after electrochemical test[68]. IL-SEM: Identical location scanning electron microscopy; EDS: energy-dispersive X-ray spectroscopy.