Highly Efficient Recycling Waste Plastic into Hydrogen and Carbon Nanotubes through a Double Layer Microwave‐Assisted Pyrolysis Method
Abstract
Microwave‐assisted pyrolysis of PE to hydrogen and carbon material has great potential to solve the problem of waste PE induced white pollution and provide a promising way to produce hydrogen energy. To increase the hydrogen yield, a new microwave‐assisted pyrolysis procedure should be developed. In the present study, a facile double‐layer microwave‐assisted pyrolysis (DLMP) method is developed to pyrolyze PE. Within this method, PE can be converted to hydrogen, multiwalled carbon nanotubes with extremely high efficiency compared with the traditional methods. A high hydrogen yield of 66.4 mmol g−1PE is achieved, which is ≈93% of the upper limit of the theoretical hydrogen yield generated from the PE pyrolysis process. The mechanism of high hydrogen yield during the microwave‐assisted pyrolysis of PE using the DLMP method is also clarified in detail. The DLMP method paved the potential way for recycling plastic waste into high‐value‐added products.
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The FeAlOx catalytic system performed best in DLMP, with a yield of 66.4 mmol/g PE, equivalent to 93% of PE's theoretical maximum hydrogen potential.
“The FeAlO x catalytic system performed best, with a yield of 66.4 mmol/g PE, equivalent to 93% of PE's theoretical maximum hydrogen potential.”
From Functional carbon materials from waste plastics: synthesis and applications (2025) · cites this paper as [102]
Double-Layer Microwave-assisted Pyrolysis (DLMP) significantly enhanced hydrogen generation efficiency by covering the primary catalyst-PE mixture layer with a secondary catalyst layer.
“This method significantly enhanced hydrogen generation efficiency by covering the primary catalyst-PE mixture layer with a secondary catalyst layer.”
From Functional carbon materials from waste plastics: synthesis and applications (2025) · cites this paper as [102]
Using DLMP, various catalyst systems achieved hydrogen yields exceeding 60 mmol/g PE.
“Experimental results showed that using DLMP, various catalyst systems achieved hydrogen yields exceeding 60 mmol/g PE.”
From Functional carbon materials from waste plastics: synthesis and applications (2025) · cites this paper as [102]
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References 40 · Cited by 9
- Authors
- Wang, S., Hu, Y., Lu, S., Zhang, B., Li, S., & Chen, X.
- Affiliations
- Shenyang University of Technology (CN)
- West Pomeranian University of Technology in Szczecin (PL)
- Corresponding author
- Li, Sanxi
- Chen, Xuecheng
- Venue
- Macromolecular Rapid Communications
- Publisher
- Wiley
- Published
- 2024-07-29
- Volume
- 45
- Issue
- 18
- Pages
- e2400270-e2400270
- ISSN
- 1022-1336 (ISSN-L)
- 1521-3927
- OpenAlex
- W4401099719
- Cited by
- 9
- References
- 40
- Citations by year
- 2026: 3 · 2025: 5 · 2024: 1
- FWCI
- 0.98
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Macromolecular Rapid Communications (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Physical Sciences › Chemistry › Organic Chemistry › Microwave-Assisted Synthesis and Applications
- Physical Sciences › Chemical Engineering › Catalysis › Catalysts for Methane Reforming
- Keywords
- polyethylene, microwave pyrolysis, hydrogen production, multi-walled carbon nanotubes, plastic recycling, white pollution, pyrolysis mechanism, hydrogen yield
- MeSH terms
- Pyrolysis, Hydrogen, Microwaves, Plastics, Nanotubes, Carbon, Recycling
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