Fig. 3: Catalytic performance of acetylene hydrogenation.
From: Synergistic aluminum dual-atom sites and nickel nanoclusters for acetylene selective hydrogenation
a Conversion as a function of reaction temperature; Selectivity of (b) C2H4, (c) C2H6 and (d) oligomers as a function of conversion; (e) Arrhenius plots; (f, g) Reaction order of acetylene and hydrogen, respectively; (h) Durability test on Al2-NiNC/NCNT at 142 °C. (Error bars represent the standard deviation of three repeating experiments; Reaction condition: a hydrogen to acetylene ratio of 20:1; space velocity = 9000 mL g−1 h−1; atmospheric pressure. The regeneration method originates from Jam domestic petrochemical’s process for acetylene hydrogenation and primarily involves coke combustion through the introduction of oxygen at 500 oC, followed by a hydrogen treatment step to reduce the oxidized Al and Ni species back to their fresh states44,45).
