Cited by 117Supercapacitor Materials and FabricationElectrocatalysts for Energy ConversionMXene and MAX Phase Materials

Co-etching effect to convert waste polyethylene terephthalate into hierarchical porous carbon toward excellent capacitive energy storage

Liu, Xiaoguang, Wen, Yanliang, Chen, Xuecheng, Tang, Tao, Mijowska, Ewa·2020·Science of The Total Environment

Abstract

With the ever-increasing consumption of polyethylene terephthalate (PET) related products, how to recycle the waste PET still remains as a great challenge for the sustainable development. Converting waste PET into porous carbon material has been emerged as a promising way to address this issue. Recently, the microporous carbon derived from waste PET has drawn considerable attention in adsorption field, but its electrochemical application is still impeded by low specific surface area (SSA <1500 m 2 g-1) and small meso-/macropores volume (<0.2 cm 3 g-1). Herein, hierarchical porous carbon (HPC) is successfully prepared from waste PET. The obtained HPC possesses a high SSA (2238 m 2 g-1) and a large meso-/macropores volume (0.51 cm 3 g-1). The formation mechanism of hierarchical porous structure is proposed: co-etching effect of sp 2/sp 3 hybridized carbon produces micropores and meso-/macropores, respectively. In a three-electrode configuration, HPC based electrode achieves an outstanding capacitance of 413 F g-1, while the traditional microporous carbon exhibits a low capacitance of 142 F g-1. The fabricated symmetric supercapacitor shows a high energy density of 25 Wh kg-1. This work provides a good reference to convert waste plastics into hierarchical porous carbon.

Integrity signals

Registry

Crossref · 10.1016/j.scitotenv.2020.138055

Cites

59 of 59 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Shear milling is suitable for reducing plastic size due to the good flexibility of waste plastics, for example flexible polyethylene terephthalate and polyvinyl chloride.

    “Shear milling is suitable for reducing plastic size due to the good flexibility of waste plastics, for example flexible polyethylene terephthalate and polyvinyl chloride (Liu et al. 2020(Liu et al. , 2022b)).”

    From Conversion of waste plastics into value-added carbon materials (2023) · cites this paper as Liu et al. 2020

  • Oxygen-limited carbonization of polyethylene terephthalate in a quartz tube furnace at 773 K for 1 h produces porous carbon (Liu et al., 2020).

    “| Oxygen-limited | Polyethylene tere- | Quartz tube | 773 K, 1 h | Porous carbon | - | Liu et al. (2020) |”

    From Conversion of waste plastics into value-added carbon materials (2023) · cites this paper as Liu et al. (2020)

  • Two carbonization temperatures affect the properties of carbon materials prepared from waste plastics (Liu et al., 2020).

    “Effects of two carbonization temperatures on the properties of carbon materials prepared from waste plastics.Reprinted with permission of Elsevier fromLiu et al. (2020)”

    From Conversion of waste plastics into value-added carbon materials (2023) · cites this paper as Liu et al. (2020)

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Liu, X., Wen, Y., Chen, X., Tang, T., & Mijowska, E.
Affiliations
  • West Pomeranian University of Technology in Szczecin (PL)
  • Chinese Academy of Sciences (CN)
Corresponding author
Chen, Xuecheng
Venue
Science of The Total Environment
Publisher
Elsevier BV
Published
2020-06
Volume
723
Pages
138055
ISSN
0048-9697 (ISSN-L)
OpenAlex
W3011684790
Cited by
117
References
59
Citations by year
2026: 11 · 2025: 24 · 2024: 24 · 2023: 14 · 2022: 17 · 2021: 19 · 2020: 8
FWCI
9.99
Type
journal article
Language
en
Open access
closed
Locations
  • The Science of The Total Environment (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials (17kffk02)
  • Narodowe Centrum Nauki (UMO-2015/18/E/ST8/00291)
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
PET waste, hierarchical porous carbon, plastic recycling, supercapacitor electrodes, symmetric supercapacitor, specific surface area, capacitive energy storage, microporous carbon

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review