Nickel tungstate-based electrocatalyst, photocatalyst, and photoelectrocatalyst in water splitting applications

Electrocatalytic, photocatalytic, and photoelectrocatalytic water splitting provide promising pathways for converting electricity and light energy into sustainable hydrogen energy. The rational design and preparation of electrocatalytic, photocatalytic, and photoelectrocatalytic materials are of great significance for water splitting. Based on NiWO4, composite catalysts can significantly enhance the catalytic activity and performance of water splitting, especially in the fields of photocatalytic, electrocatalytic, and photoelectrocatalytic hydrogen and oxygen production, as well as overall water splitting. Due to its abundant active sites, excellent conductivity, and synergistic effects with other materials, the design and preparation of NiWO4-based composite catalysts are favored by researchers. Currently, there is little information available on the universality of catalytic materials in these three areas. This paper reviews the universality of NiWO4-based composite catalysts in the fields of electrocatalytic, photocatalytic, and photoelectrocatalytic water splitting, as well as their universal applications in promoting hydrogen production, oxygen production, and overall water splitting, comprehensively elucidating the mechanism and application of NiWO4-based composite catalysts in water splitting and boldly envisioning their broad development prospects.