fig4

Figure 4. (a) Generated V(H₂ + CO₂) versus time for the dehydrogenation of FA at 298 K and (b) corresponding TOF values over different catalysts; (c) Gas chromatography analysis results for (I, II) gas generated from FA, (III) commercial mixed standard gas containing CO and CO₂, (IV) commercial pure H_2; (d-f) Generated V(H₂ + CO₂) versus time for the dehydrogenation of FA and corresponding TOF values(insets) at 298 K for Pd@NH₂-NC synthesized with (d) different amounts of NaBH_4, (e) different amounts of APTS, and (f) different amounts of urea. TOF: turnover frequency.