Fig. 7: Adsorption/desorption and hydrogenation behaviors on Ni1Sb2.

a C2H2-TPD and b C2H4-TPD profiles of the Ni and NiSb catalysts. In-situ DRIFTS spectra of the hydrogenation of pre-adsorbed acetylene on c Ni and d NiSb catalysts at elevated temperatures. The assignments of the characteristic peaks are schematically shown in the insets above the spectra.