fig2
![Recent advances in earth-abundant first-row transition metal (Fe, Co and Ni)-based electrocatalysts for the oxygen evolution reaction](https://image.oaes.cc/92b7fbf7-13f1-4589-b2f9-a2999bf9db55/5063.fig.2.jpg)
Figure 2. (A) Synthetic steps of forming MoFe:Ni(OH)2/NiOOH NSs on nickel foam directly. (B) XRD patterns of MoFe:Ni-(OH)2 and MoFe:Ni(OH)2/NiOOH NSs. (C) Raman spectra of MoFe:Ni(OH)2 and MoFe:Ni(OH)2/NiOOH NSs. (D-G) TEM and HRTEM images of MoFe:Ni(OH)2 and MoFe:Ni-(OH)2/NiOOH NSs. Reproduced with permission. Copyright 2018, American Chemical Society[56].