Table 1 Comparison of acetylene semihydrogenation performance between EAH of NHC–Cu and the reported TAH of thermocatalysts.
Catalyst | Feed gas composition | T (°C) | SV (mL/gcat/h) | TOF (s−1) | Specific selectivity (%) | Residual C2H2 (p.p.m.) | Stability (h) | Refs. |
|---|---|---|---|---|---|---|---|---|
NHC–Cu | C2H2/C2H4 (1/99) | 25 | 9.6 × 105 | 2.1 × 10−2 | >99 | ~30 | 100 | This work |
Cu1/ND@G | C2H2/C2H4/H2/He (1/20/10/69) | 200 | 3 × 103 | 1.7 × 10−3 | >98 | 500 | 60 | |
Ni3Ga | C2H2/C2H4/H2/He (0.5/50/10/39.5) | 200 | 4 × 104 | 1.4 × 10−6 | 77 | 500 | 50 | |
Al13Fe | C2H2/C2H4/H2/He (0.5/50/5/44.5) | 200 | 9 × 104 | / | 82 | 1000 | 20 | |
Pd/PPS | C2H2/C2H4/H2/C3H8/N2 (0.6/49.3/0.9/0.6/48.6) | 100 | 3.26 × 102 | / | >65 | 60 | 200 | |
Pd@SOD | C2H2/H2/N2 (0.6/6/93.4) | 150 | 3 × 104 | / | 94.5 | 12 | 50 | |
Single–atom Pd | C2H2/C2H4/H2/He (0.5/50/5/44.5) | 120 | 1.2 × 103 | / | 93.4 | 200 | 3 | |
PdZn@ZIF-8C | C2H2/C2H4/H2/Ar (0.65/50/5/44.35) | 115 | 4.8 × 104 | / | 80 | 2200 | 12 | |
Pd–Pt/SiO2 | C2H2/C2H4/H2 (1.67/3.33/95) | 80 | 1.35 × 105 | / | 40 | 167 | / | |
Ni3ZnC0.7 | C2H2/C2H4/H2/He (0.5/20/4.5/75) | 200 | / | / | 93 | 50 | 12 | |
Graphene | C2H2/C2H4/H2/N2 (0.1/0.9/3/94) | 110 | 1.46 × 104 | / | 92 | 210 | / |
