Plasma-enhanced upcycling of mixed plastic waste over La0.6Ca0.4FeO3−δ nano spheres for co-producing hydrogen and high-value carbon

In this study, we present a novel plasma-enabled method for efficiently decomposing mixed plastic waste into hydrogen and valuable carbon materials. The plasma pyrolysis process exhibited superior performance compared to conventional thermal pyrolysis, achieving an H₂ yield of 24.4 mmol / gplastic,...

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Bibliographic Details
Main Authors: Guoxing Chen, Xiao Yu, Aasir Rashid, Chanchan Li, Marc Widenmeyer, Lina Liu, Bowen Liu, Yi Wang, Gert Homm, Emanuel Ionescu, Tao Shao, Anke Weidenkaff
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Results in Engineering
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Online Access:http://www.sciencedirect.com/science/article/pii/S2590123025001276
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Summary:In this study, we present a novel plasma-enabled method for efficiently decomposing mixed plastic waste into hydrogen and valuable carbon materials. The plasma pyrolysis process exhibited superior performance compared to conventional thermal pyrolysis, achieving an H₂ yield of 24.4 mmol / gplastic, which is >25 times higher than that of the thermal pyrolysis process. The addition of La0.6Ca0.4FeO3−δ nano spheres as a pre-catalyst further enhanced hydrogen yield by 1.8 times while facilitating the production of value-added carbon nanotube composite materials. A life-cycle assessment demonstrated that recycling mixed plastic waste via this method significantly reduces CO₂ emissions compared to conventional thermal pyrolysis. This innovative approach shows great potential and provides a scalable and sustainable solution for managing complex mixed plastic waste, promoting circular economy objectives while enabling industrial applications in clean energy production and advanced material development.
ISSN:2590-1230