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. 2015 Nov 25;6:10035. doi: 10.1038/ncomms10035

Figure 3. Electrochemical performance of Pt/Ni(OH)2/rGO ternary hybrids for MOR electrocatalysis.

Figure 3

(a) CV curve of Pt/Ni(OH)2/rGO-4 in 1 M KOH. (b) CV curves of Pt/Ni(OH)2/rGO-4, Pt/rGO hybrid and standard 20 wt% Pt/C in 1 M methanol/1 M KOH. (c) Short-term durability measurement of Pt/Ni(OH)2/rGO-4 at −0.30 V versus SCE in 1 M methanol/1 M KOH in comparison with Pt/rGO, standard 20 wt% Pt/C and 20 wt% PtRu/C. (d–g) Long-term durability measurements of (d) standard 20 wt% Pt/C, (e) standard 20 wt% PtRu/C, (f) Pt/rGO and (g) Pt/Ni(OH)2/rGO-4. The dash lines indicate when electrocatalysts were reactivated in clean KOH. In b–g, current densities are normalized to the mass of precious metals (Pt or Ru) in the working electrode. These electrochemical data suggest high MOR activity and unprecedented durability of Pt/Ni(OH)2/rGO hybrids.