Fig. 4
From: Two-dimensional amorphous NiO as a plasmonic photocatalyst for solar H2 evolution
Exploration of the photocatalytic mechanism. a SPV spectra, b PL spectra and c electrocatalytic polarization curves of the BC (black), 2DC (blue), 2DA (orange) and 2DPA (purple). d–f Schematic illustration of the photocatalytic H2 evolution mechanism over crystalline NiO (d), bulk amorphous NiO (e) and 2D amorphous NiO (f)
