Table 1 Comparative analysis of plasmonic catalytic systems in acetylene semi-hydrogenation
Catalyst (metal loading and weight) | Light Intensity in W cm−2 (λ) | Feed Composition in vol. % (total flow) | Reactor Type | Ethene Production Rate (mmolg−1h−1) | Acetylene Conversion (%) | Ethene Selectivity (%) | Ref. |
---|---|---|---|---|---|---|---|
DPC/RuPt (10 %, Ru:Pt=9:1, 5 mg) | 2.7 (400–1100 nm) | C2H2/C2H4/H2/Ar/Air = 2.72/54.5/13.6/24.5/4.5 (110 mL min−1) (With excess ethene) | Fixed bed flow reactor with quartz window (crucible i.d- 6 mm) | 320 | 18 | 88 | This Work |
DPC/RuPt (10 %, Ru:Pt=9:1, 20 mg) | 6 (AM1.5) | C2H2/C2H4/H2/Ar/Air = 2.2/44.4/22.2/20/11.1 (9 mL min−1) (With excess ethene) | Quartz flat cell flow reactor (internal gap is 0.5 mm in the flat section, length-50 mm, width-8mm) | 31 | 97 | 87 | This Work |
Pd-Mg/GS (Pd:3 %, 20 mg) | 1.8 (785 nm) | C2H2/H2/N2 = 5/15/75 (Without ethene) C2H2/H2/N2 = 5/20/75 (Without ethene) | Horizontally-oriented packed bed reactor with CaF2 window (6 mm) at the top of the reactor | NR 101 | 90 NR | 80 NR | |
DPC/Ni (Ni-10 %, 35 mg) | 0.58 (400–1100 nm) | C2H2/H2/Ar = 0.12/2/97.8 (14 mL min−1) (Without ethene) | Quartz flat cell flow reactor (tube i.d-3.5 mm) | 2.4 | 30 | 86 | |
Au-Fe/C (1%, Au:Fe=1:1, 1 g (in 2 g quartz sand)) | 0.45 (250–1100 nm) T ~ 130 °C, external heating) | C2H2/C2H4/H2/Ar= 1/20/20/59 (Total flow- 20 mL min−1) (With excess ethene) | Photothermal fixed-bed reactor | 0.5 | 98.4 | 97.5 | |
AlNC-Pd (catalyst weight unknown) | 14.3 (680–1080 nm) | C2H2/H2/He/N2 = 1.33/3.33/25.33/70 (15 mL min−1) (Without ethene) | Stainless steel gas-phase high-temperature reaction chamber | 26.7 ×10−3 (mmol h−1) | 5 | 97 |