Cited by 155Graphene research and applicationsSupercapacitor Materials and FabricationTiO2 Photocatalysis and Solar Cells

Graphene nanosheets derived from plastic waste for the application of DSSCs and supercapacitors

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Pandey, Sandeep, Karakoti, Manoj, Surana, Karan, Dhapola, Pawan Singh, SanthiBhushan, Boddepalli, Ganguly, Swaroop, Singh, Pramod K., Abbas, Ali +2 more·2021·Scientific Reports

Abstract

The present study reports the upcycling process of waste plastics into value-added product graphene nanosheets (GNs) and their subsequent applications in dye sensitized solar cells (DSSCs) and supercapacitors. Bentonite nanoclay has been used as an agent for the degradation of waste plastics with two step pyrolysis processes at 450 °C and 945 °C in an inert atmosphere of N 2 gas to obtain GNs. The GNs with few layers were confirmed by the RAMAN spectroscopy, XRD and HRTEM analyses. Further, FT-IR and EDX analyses also performed for the identification and quantitative analysis of functional groups in GNs. The GNs thus synthesized from plastic waste have been used for the fabrication of DSSCs and supercapacitors. The DSSC fabrication with GNs as part of photo-anode with polymeric electrolyte showed a high fill factor of 86.4% and high V oc of 0.77 V, which were also supported by the computational findings. On the other hand, the utilization of GNs as an active layer material of supercapacitor electrodes offered a high specific capacitance of 398 F/g with a scan rate of 0.005 V/s. The supercapacitor also exhibited significant energy density (E d ) and power density (P d ) of 38 Wh/kg and 1009.74 W/kg, respectively. Thus, the process illustrated the utility of waste plastics upcycling for conservation of EEE i.e., ecology, economy and energy for better tomorrow.

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Crossref · 10.1038/s41598-021-83483-8

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  • Supercapacitors with high specific power density, good cycle stability and long life, fast charging or discharging and wide operating temperature range are preferred for energy storage devices.

    “In order to effectively store and use energy, supercapacitors with high specific power density, good cycle stability and long life, fast charging or discharging and wide operating temperature range are preferred for energy storage devices (Pandey et al. 2021).”

    From Conversion of waste plastics into value-added carbon materials (2023) · cites this paper as Pandey et al. 2021

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Research works printed but not linked: 2

  1. [6]EC, Speaking points by Environment Commissioner Janez Potočnik on Circular Economy—Press conference on Circular Economy and Green Employment Initiative, Brussels. (2014).
  2. [7]EC, Report on critical raw materials for the EU—Critical raw materials profiles. in Industry, D.E.a. (ed.) (2015).

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Authors
Pandey, S., Karakoti, M., Surana, K., Dhapola, P. S., SanthiBhushan, B., Ganguly, S., Singh, P. K., Abbas, A., Srivastava, A., & Sahoo, N. G.
Affiliations
  • Kumaun University (IN)
  • Sharda University (IN)
  • Indian Institute of Technology Bombay (IN)
  • The University of Sydney (AU)
  • Atal Bihari Vajpayee Indian Institute of Information Technology and Management (IN)
Corresponding author
Sahoo, Nanda Gopal
Venue
Scientific Reports
Published
2021-02-16
Volume
11
Issue
1
Pages
3916-3916
ISSN
2045-2322 (ISSN-L)
OpenAlex
W3131772750
Cited by
155
References
76
Citations by year
2026: 20 · 2025: 31 · 2024: 36 · 2023: 31 · 2022: 23 · 2021: 13
FWCI
7.82
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Department of Science and Technology, Ministry of Science and Technology, India (IF150750)
  • Ministry of Environment, Forest and Climate Changes, India (GBPNI/NMHS-2019-20/MG)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Graphene research and applications
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Supercapacitor Materials and Fabrication
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › TiO2 Photocatalysis and Solar Cells
Keywords
graphene nanosheets, plastic waste upcycling, plastic waste pyrolysis, bentonite nanoclay, dye-sensitized solar cells, supercapacitors, photoanodes, polymer electrolytes, specific capacitance, energy density, electronic waste

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