Extended Data Fig. 6: Sampling and analysis results of the liquid products from the LDPE pyrolysis reaction at different time intervals.
From: Selective electrified polyethylene upcycling by pore-modulated pyrolysis
Following the initiation of the pyrolysis reaction in the graded-pore reactor, samples were collected at various time intervals and analyzed using GC-MS. To meet analysis requirements, the samples were diluted to a concentration of approximately 1–2 mg/mL (ethyl acetate used as the solvent, peak time = 2.4 min). No products were detected in the first 0–5 seconds. Subsequent analysis of the 5–10 second sample revealed the presence of hydrocarbons, indicating that product started to be produced during this period. Sampling was then performed every 10 seconds, showing similar product distributions from 10 to 80 seconds. Finally, the 80–90 second sample showed no detectable product peaks, suggesting the product concentration was below the detection limit and the reaction was completed during this time frame.
