Doped Mo replaces defects in the lattice in low valence<br>The w atom forms an intrinsic Mo-W site, due to the difference in the electronic structure of Mo and W, the Mo-W site is inhomogeneous and changes the charge of the N2 molecule.<br>This distribution increases the charge density difference of N2 molecules. At the same time, the doping of Mo increases the covalency of the metal oxygen (M - O) bond at the defect and promotes electron transfer. Same<br>Time doping also adjusts the energy level of the defect, weakens energy relaxation of electrons during charge transfer to the defect energy level, enhances activation and dissociation of n (n) n bonds, and improves photocatalysis.<br>Efficiency of nitrogen fixation for synthesizing NH3.<br>
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