A Versatile Sulfur‐Assisted Pyrolysis Strategy for High‐Atom‐Economy Upcycling of Waste Plastics into High‐Value Carbon Materials

With the overconsumption of disposable plastics, there is a considerable emphasis on the recycling of waste plastics to relieve the environmental, economic, and health‐related consequences. Here, a sulfur‐assisted pyrolysis strategy is demonstrated for versatile upcycling of plastics into high‐value...

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Bibliographic Details
Published in:Advanced science 2023-05, Vol.10 (15), p.e2206924-n/a
Main Authors: Tang, Youchen, Cen, Zongheng, Ma, Qian, Zheng, Bingna, Cai, Zhaopeng, Liu, Shaohong, Wu, Dingcai
Format: Article
Language:English
Subjects:
Carbon footprint
Decomposition
Emissions
Greenhouse gases
Hydrocarbons
NMR
Nuclear magnetic resonance
Plastics
Polymerization
Polyolefins
Recycling
sodium‐ion batteries
Spectrum analysis
Sulfur
sulfurization
upcycling
waste plastics
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Summary:With the overconsumption of disposable plastics, there is a considerable emphasis on the recycling of waste plastics to relieve the environmental, economic, and health‐related consequences. Here, a sulfur‐assisted pyrolysis strategy is demonstrated for versatile upcycling of plastics into high‐value carbons with an ultrahigh carbon‐atom recovery (up to 85%). During the pyrolysis process, the inexpensive elemental sulfur molecules are covalently bonded with polymer chains, and then thermally stable intermediates are produced via dehydrogenation and crosslinking, thereby inhibiting the decomposition of plastics into volatile small hydrocarbons. In this manner, the carbon products obtained from real‐world waste plastics exhibit sulfur‐rich skeletons with an enlarged interlayer distance, and demonstrate superior sodium storage performance. It is believed that the present results offer a new solution to alleviate plastic pollution and reduce the carbon footprint of plastic industry. A sulfur‐assisted pyrolysis strategy is developed for versatile and high‐atom‐economy upcycling of the real‐world waste plastics into high‐value carbons, which have sulfur‐rich skeletons with an enlarged interlayer distance and thus demonstrate great application potential for high‐performance sodium‐ion batteries.
ISSN:2198-3844
2198-3844
DOI:10.1002/advs.202206924