ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 3, 2025

Chemical upcycling of plastic wastes into valuable chemical feedstocks and simultaneous mitigation environmental deterioration are fascinating but remain extremely challenging. Herein, we report microwave-assisted valorization carbon nanotubes (CNTs) hydrogen (H2) over heterojunction-structured mixed metal oxides. Specifically, the CoNiFe-based layered triple oxides (LTO) arrayed on Ni-foam (CoNiFe-LTO@foam) were constructed. The special heterojunction LTO endows high dielectric loss, facilitating efficient conversion absorbed microwave energy thermal energy. Most importantly, synergistic effect multiple transition sites boosts cleavage chains dehydrogenation, thereby accelerating reaction kinetics. As a result, CoNiFe-LTO@foam achieves an H2 selectivity ∼95 vol % with yield ∼69 mmol·gplastic-1 for polyethylene in 25 cycles measurement. Simultaneously, CNTs attain ∼35%, which can be used aqueous chloride-ion batteries. Additionally, enables facile recovery prevents loss catalytic sites, various real-world wastes. Our work thus highlights innovations advanced system forming closed loop C/H achieving ultimate goal carbon-neutral society.

Language: Английский