ItemArticle

Influence of high-shear exfoliation and the stabilizer on the formation of exfoliated graphene nanosheets and its supercapacitive performances

Title
Influence of high-shear exfoliation and the stabilizer on the formation of exfoliated graphene nanosheets and its supercapacitive performances
Creator
Murugadoss, Vignesh; Reddy, Sushma N.; Subramania, Ashok Kumar; Dhandapani, Preethi; Rajendra, Saradh Prasad; AlSalhi, Mohamad S.; Angaiah, Subramania
Description
Despite the extensive research on the preparation of graphene nanosheets, there is no suitable and optimized procedure for the large-scale production of 'defect-free' graphene monolayers. In addition, there is only a few works on the eco-friendly shear exfoliation of graphite using water as the solvent. However, no work has been reported on optimizing the critical parameters such as rotation speed and time duration (rpm) of shear homogenizer and concentration of stabilizer that determine the quality of graphene nanosheets. In this paper, an eco-friendly and scalable approach to prepare graphene nanosheets from natural graphite flakes using a high-speed shear homogenizer and sodium dodecyl sulfate (SDS) as an ionic stabilizer has been reported. As a result, the obtained efficiency of exfoliated graphene corresponding to the optimized condition is found to be 89%. Later, the exfoliated graphene is characterized by both physical characterization (i.e., Raman spectroscopy and FE-SEM) and electrochemical characterization. The electrochemical analysis reveals that the prepared graphene nanosheets exhibit a specific capacitance of 60.24Fg?1. This method is simple, inexpensive, environmentally friendly, and easy to scale up. Iranian Chemical Society 2025.
Source
Journal of the Iranian Chemical Society;Volume;22;Issue;4;pp.733-742
Date
01-01-2025
Publisher
Springer Science and Business Media Deutschland GmbH
Subject
Graphite flakes; High-shear exfoliation; Liquid-phase exfoliation; Sodium dodecyl sulfate (SDS)
Coverage
Murugadoss V., Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605014, India; Reddy S.N., Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605014, India, Department of Chemistry, Christ University, Bengaluru, 560029, India; Subramania A.K., Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605014, India, Department of Biomedical Engineering, Saveetha Engineering College (Autonomous), Chennai, 602105, India, School of Biological and Health Systems Engineering, Arizona State University, Tempe, 85281, AZ, United States; Dhandapani P., Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605014, India; Rajendra S.P., Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia; AlSalhi M.S., Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia; Angaiah S., Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605014, India
Rights
Restricted Access; Hardcopy may be available in the library
Relation
ISSN: 1735207X; CODEN: JICSC
Format
online
Language
English
Type
Article

Citation

Murugadoss, Vignesh; Reddy, Sushma N.; Subramania, Ashok Kumar; Dhandapani, Preethi; Rajendra, Saradh Prasad; AlSalhi, Mohamad S.; Angaiah, Subramania, “Influence of high-shear exfoliation and the stabilizer on the formation of exfoliated graphene nanosheets and its supercapacitive performances,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/22053.

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