fig3
![Research progress of amorphous catalysts in the field of electrocatalysis](https://image.oaes.cc/94ae854a-00e1-4b70-b63a-b92d0449616c/microstructures3066.fig.3.jpg)
Figure 3. (A) Schematic diagram of self-supported hierarchical porous amorphous FeNiCo-based bifunctional catalysts. (Reproduced with permission[55]. Copyright 2021, Elsevier). (B) TEM and (C) HRTEM image of MoSx@NCNFs-30 films. (Reproduced with permission[56]. Copyright 2016, Elsevier). (D) HRTEM diagram of amorphous CoOx nanoparticles (The insert shows its SAED patterns); (E-G) Free energy diagram for the water oxidation on Co3O4, CoOOH, and 1D-CoOx surfaces. (Reproduced with permission[57]. Copyright 2017, WILEY-VCH). (H) TEM image and SAED pattern (inset) of CoB@TiO2 nanosheets; (I) NH3 yields and FE at given potentials. (Reproduced with permission[59]. Copyright 2022, CCS).