Spatially ordered NiOOH-ZnS/CdS heterostructures with an efficient photo-carrier transmission channel for markedly improved H₂ production

Abstract

Spatially-ordered 1D nanocrystal-based semiconductor nanostructures possess the distinct merits for photocatalytic reaction, including large surface area, fast carriers separation, and enhanced light scattering and absorption. Nevertheless, establishing a valid photo-carriers...

Solar light driven atomic and electronic transformations in a plasmonic Ni@NiO/NiCO3 photocatalyst revealed by ambient pressure X-ray photoelectron spectroscopy

“…5b) suggests the potential reversible transformation of NiO into NiOOH under light illumination conditions due to the oxidation of water molecules. NiO has been reported to be an effective photo- 63–65 and electrocatalyst 62,66,67 and co-catalyst for oxygen generation, attributed to its suitable oxygen generation potential and high efficiency in hole injection. Lin et al observed using XAS during the oxygen evolution reaction (OER) that upon oxidation, the surfaces of NiO samples undergo a transformation to NiOOH.…”