Fig. 13
From: Hydrogen production from water electrolysis: role of catalysts
(Figure reprinted with permission from Ref. [62])
a TEM images of AuCo core–shell nanoparticles (inset: high-magnification TEM showing the lattice fringes corresponding to fcc Au and fcc Co), b schematic illustration of OER on the partially phase segregated AuCo nanoparticles, c comparison of catalytic activities at 1.67 V in 0.1 M KOH. Inset: polarization curves of (a) Au23Co77/C, (b) Au40Co60/C, (c) Au71Co29/C, (d) Au95Co5/C, (m) CoOx/C, (n) Au/C in 0.1 M KOH