Dissolution-Induced Surface Reconstruction of NiPtSi/p-Si Photocathode for Efficient Photoelectrochemical H Production.

Metal silicide/Si photoelectrodes have demonstrated significant potential for application in photoelectrochemical (PEC) water splitting to produce H. To achieve an efficient and economical hydrogen evolution reaction (HER), a paramount consideration lies in attaining exceptional catalytic activity on the metal silicide surface with minimal use of noble metals. Here, this study presents the design and construction of a novel NiPtSi/p-Si photocathode.