Cited by 127Supercapacitor Materials and FabricationElectrocatalysts for Energy ConversionMXene and MAX Phase Materials

Mass production of hierarchically porous carbon nanosheets by carbonizing “real-world” mixed waste plastics toward excellent-performance supercapacitors

Wen, Yanliang, Kierzek, Krzysztof, Chen, Xuecheng, Gong, Jiang, Liu, Jie, Niu, Ran, Mijowska, Ewa, Tang, Tao·2019·Waste Management

Abstract

Recently, sustainable development and serious energy crisis called for appropriate managements for the large number of municipal and industrial waste plastics as well as the development of low-cost, advanced materials for energy storage. However, the complexity of waste plastics significantly hampers the application of ever used methods, and little attention is paid to the utilization of waste plastics-derived carbon in energy storage. Herein, porous carbon nanosheets (PCNSs) was produced by catalytic carbonization of "real-world" mixed waste plastics on organically-modified montmorillonite (OMMT) and the subsequent KOH activation. PCNSs was featured on hierarchically micro-/mesoporous structures with the pore size distribution centered on 0.57, 1.42 and 3.63 nm and partially exfoliated graphitic layers, and showed a high specific surface area of 2198 m 2 g-1 and a large pore volume of 3.026 cm 3 g-1. Benefiting from these extraordinary properties, PCNSs displayed a superior performance for supercapacitors with high specific capacitances approaching 207 and 120 F g-1 at a current density of 0.2 A g-1 in aqueous and organic electrolytes, respectively. Importantly, when the current density increased to 10 A g-1, the specific capacitances remained at 150 F g-1 (72.5%) and 95 F g-1 (79.2%) in aqueous and organic electrolytes, respectively. The outstanding rate capability of PCNSs was in sharp contrast to the performance of traditional activated carbons. This work not only provides a potential way to recycle mixed waste plastics, but also puts forward a facile sustainable approach for the large-scale production of PCNSs as a promising candidate for supercapacitors.

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Crossref · 10.1016/j.wasman.2019.03.006

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  • Porous MgO template promotes decomposition of polymers and formation of porous carbon nanosheets as a sacrificial template.

    “Porous MgO template can not only promote the decomposition of polymers, but also promote the formation of porous carbon nanosheets as a sacrificial template, while organically modified montmorillonite, as an active template, can introduce more Brønsted acid sites to catalyze the decomposition of plastics and improve carbon emissions, but it cannot generate pores on carbon nanosheets (Wen et al. 2”

    From Conversion of waste plastics into value-added carbon materials (2023) · cites this paper as Wen et al. 2019

  • Organically modified montmorillonite as an active template introduces more Brønsted acid sites to catalyze decomposition of plastics and improve carbon emissions, but cannot generate pores on carbon nanosheets.

    “Porous MgO template can not only promote the decomposition of polymers, but also promote the formation of porous carbon nanosheets as a sacrificial template, while organically modified montmorillonite, as an active template, can introduce more Brønsted acid sites to catalyze the decomposition of plastics and improve carbon emissions, but it cannot generate pores on carbon nanosheets (Wen et al. 2”

    From Conversion of waste plastics into value-added carbon materials (2023) · cites this paper as Wen et al. 2019

  • Wen et al. carbonized waste plastics, such as waste woven bags, waste containers, waste foam sheets, waste beverage bottles and waste sewage pipes, to produce porous carbon nanosheets with multi-stage porous structure and high surface area.

    “Wen et al. carbonized the waste plastics, such as waste woven bags, waste containers, waste foam sheets, waste beverage bottles and waste sewage pipes to produce porous carbon nanosheets with multi-stage porous structure and high surface area (Wen et al. 2019).”

    From Conversion of waste plastics into value-added carbon materials (2023) · cites this paper as Wen et al. 2019

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Authors
Wen, Y., Kierzek, K., Chen, X., Gong, J., Liu, J., Niu, R., Mijowska, E., & Tang, T.
Affiliations
  • West Pomeranian University of Technology in Szczecin (PL)
  • Wrocław University of Science and Technology (PL)
  • Huazhong University of Science and Technology (CN)
  • Chinese Academy of Sciences (CN)
  • Cornell University (US)
Corresponding author
  • Chen, Xuecheng
  • Gong, Jiang
  • Tang, Tao
Venue
Waste Management
Publisher
Elsevier BV
Published
2019-03
Volume
87
Pages
691-700
ISSN
0956-053X (ISSN-L)
OpenAlex
W2921872685
Cited by
127
References
70
Citations by year
2026: 10 · 2025: 23 · 2024: 23 · 2023: 15 · 2022: 23 · 2021: 16 · 2020: 12 · 2019: 5
FWCI
4.34
Type
journal article
Language
en
Open access
closed
Locations
  • Waste Management (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (51373171, 50873099, 20804045)
  • National Science Centre, Poland (UMO-2015/18/E/ST8/00291)
  • Huazhong University of Science and Technology
Topics
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Supercapacitor Materials and Fabrication
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Materials Science › Materials Chemistry › MXene and MAX Phase Materials
Keywords
plastic recycling, porous carbon nanosheets, hierarchical porosity, supercapacitors, catalytic carbonization, organically modified montmorillonite, KOH activation, specific capacitance, rate capability, energy storage, waste-derived carbon
MeSH terms
Carbon, Graphite, Plastics, Porosity, Electric Capacitance

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