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Enhancing the charge transfer and redox characteristics in energy storage devices with a layered ZnNbS@graphene nanocomposite electrode material for biomedical application
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Mumtaz, Muhammad Azhar, Afzal, Amir Muhammad, Iqbal, Muhammad Waqas, Ifseisi, Ahmad A., Mumtaz, Sohail, Imran, Muhammad, Usman, Muhammad, Hussain, Zahid, Waris, Muhammad Hamza and Lamichhane, Pradeep (2023) Enhancing the charge transfer and redox characteristics in energy storage devices with a layered ZnNbS@graphene nanocomposite electrode material for biomedical application. Diamond and Related Materials, 140 . 110519. doi:10.1016/j.diamond.2023.110519 ISSN 0925-9635.
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Official URL: http://dx.doi.org/10.1016/j.diamond.2023.110519
Abstract
Hybrid supercapacitors, a type of device that integrates the functionalities of both supercapacitors and batteries, exhibit significantly enhanced power and energy densities. Two-dimensional materials particularly graphene with remarkable characteristics such as conductivity, sensitivity, and storage capacity, have garnered significant attention in the realm of energy storage. Herein, a composite electrode of zinc niobium sulfide (ZnNbS) and graphene (Gr) is designed and measured the electrochemical and biomedical applications. The composite electrode ZnNbS@Gr (75/25 ratio) showed a high value of specific capacity of 1573.01 Cg−1, much better than pristine ZnNbS (854.32Cg−1) because of the improvement in charge transfer and redox characteristics. Further, a hybrid supercapacitor device (ZnNbS@graphene//AC) is designed and achieves a specific capacity (179.2 C/g) at 1.5 A/g. The energy density is establish 42.1 WhKg−1, whereas the power density is 2500 WKg−1. This device is measured up to 5000 charging and discharging cycles, obtained a high value of capacity recantation of 96 %. Besides, this device is used to accurately detect the glucose to a small amount of 0.01 mM. The conclusions of our investigation provide a remarkable beginning for the advancement of high-capacity energy storage systems and biomedical applications.
Item Type: | Journal Article | ||||||||
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Subjects: | R Medicine > R Medicine (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TP Chemical technology |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Library of Congress Subject Headings (LCSH): | Graphene, Glucose -- Synthesis, Supercapacitors , Energy storage, Biomedical engineering | ||||||||
Journal or Publication Title: | Diamond and Related Materials | ||||||||
Publisher: | Elsevier S.A. | ||||||||
ISSN: | 0925-9635 | ||||||||
Official Date: | December 2023 | ||||||||
Dates: |
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Volume: | 140 | ||||||||
Article Number: | 110519 | ||||||||
DOI: | 10.1016/j.diamond.2023.110519 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 16 November 2023 | ||||||||
RIOXX Funder/Project Grant: |
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