Mechanochemical preparation of graphdiyne (CnH2n−2) based Ni-doped MoS2 S-scheme heterojunctions with in situ XPS characterization for efficient hydrogen production

The hydrogen production activity of NMG-20 using TEOA (volume fraction is 15% and pH = 9) was 5012 μmol g −1 h −1 , which is 17.7, 11.2, and 3.6 times higher than those of NiS, GDY and MoS 2 , and 36.8% higher than that of the doped product NM-3.