fig4
![Research progress of amorphous catalysts in the field of electrocatalysis](https://image.oaes.cc/94ae854a-00e1-4b70-b63a-b92d0449616c/microstructures3066.fig.4.jpg)
Figure 4. (A) XRD patterns of various samples. (B) LSV polarization curves of different catalyst electrodes for the OER in 1.0 M KOH. (Reproduced with permission[61]. Copyright 2022, Springer). (C) Schematic diagram of HEO-Origin preparation. (D) TEM image and (E) SAED patterns of HEO-Origin. (Reproduced with permission[63]. Copyright 2023, Elsevier). (F) Schematic diagram of the synthesis of La2O3@NP-NS. (G) SAED pattern of