Study on the Performance of Ni-MoS₂ Catalysts with Different MoS₂ Structures for Dibenzothiophene Hydrodesulfurization.

As can be seen in Table 4 , the percentages of active catalyst components (Ni–Mo–S and Ni x S y ) obtained by calcination in a H 2 atmosphere showed a trend of increasing and then decreasing with the increased calcination temperature, reaching a maximum at a calcination temperature of 400 °C.

also in 53,322 other papers

The catalysts exhibit varying concentrations of S vacancies, with a decreasing trend observed in the following sequence: H-NiMo-150–400 > H-NiMo-120–400 > H-NiMo-180–400 > H-NiMo-90–400 > H-NiMo-200–400. 3.1.4 XPS Analysis The chemical composition and valence states in the sulfided NiMo catalysts obtained at different hydrothermal treatment temperatures were further investigated by XPS, and the Mo 3d and S 2p spectra of the six samples are shown in Figure 4 .

also in 47,180 other papers