Fig. 4: HER performances of Rh/GDY in saline water.
From: Rhodium nanocrystals on porous graphdiyne for electrocatalytic hydrogen evolution from saline water
a Schematic representation of efficient hydrogen fuel production on Rh/GDY. Inset: photograph of the hydrogen evolution on Rh/GDY electrode at 1000 mA cm−2. b HER polarization curves and c corresponding Tafel plots of the as-synthesized catalysts. d, e Comparison of the HER catalytic activity of the Rh/GDY with the reported catalysts. f Nyquist plots of the catalysts. g Durability tests of Rh/GDY over 31 h at large current densities of 100, 500 and 1000 mA cm−2, respectively. h Rh 3d XPS spectra of the Rh/GDY obtained after stability tests. i The atomic percentage of Rh0, Rh+ and Rh3+ species during the stability tests.
