Abstract

Nonthermal plasma-assisted reactions at ambient temperature hold promise for applications in upcycling of polymer wastes. Transient studies showed that the H2 response led that of D2, indicating that CH breaking occurred earlier than D-OD bond breaking in D2O-rubber and D2O-CO2-rubber reactions. The CH4 response led that of C2H6, indicating that Ni-based catalyst is highly favorable for catalyzing the formation of CH4. CO2 plasma produced oxygen which could oxidize part of CH4 and C2H6 from rubber. This study demonstrated that the transient kinetic (response) method, for the first time, is effective in producing data for elucidating mechanisms of nonthermal plasma-assisted catalysis.

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