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Natural Jute Fibre‐Based Supercapacitors and Sensors for Eco‐Friendly Energy Autonomous Systems

Manjakkal, Libu; Franco, Fabiane Fantinelli; Pullanchiyodan, Abhilash; Gonz�lez?Jim�nez, Mario; Dahiya, Ravinder

Authors

Fabiane Fantinelli Franco

Abhilash Pullanchiyodan

Mario Gonz�lez?Jim�nez

Ravinder Dahiya



Abstract

Environmentally friendly energy devices and systems are of increasing interest for the circular economy and sustainable information and communications technology. To this end, an energy-autonomous system comprised of natural jute fiber-based supercapacitor (SC) and sensors (temperature and humidity) is presented. This material is coated with poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS)/single-walled carbon nanotubes as the electrode and cellulose-based material as a separator. Further, a newly prepared hydroxyethyl cellulose-potassium chloride based gel is used as the electrolyte. The observed capacitance is nearly twice the value reported for similar SCs. The energy and power densities of the presented SC are 0.712 μWh cm−1 and 3.85 µW cm−1, respectively at a capacitance of 8.65 mF cm−1 and an applied current of 0.1 mA. The fabricated temperature sensor shows a relative change in response of 0.23% °C−1 from 24 to 35 °C and the humidity sensor exhibits a sensitivity of 1.5 Ω/%RH (relative change of 0.20%) up to 50%RH. Developed using sustainable and biocompatible materials, the presented SC can power the jute-fiber based sensors, thus demonstrating an attractive eco-friendly solution for applications such as wearables, grain sacks, and bags.

Journal Article Type Article
Online Publication Date Jan 27, 2021
Publication Date 2021-03
Deposit Date Jul 18, 2022
Publicly Available Date Jul 19, 2022
Journal Advanced Sustainable Systems
Print ISSN 2366-7486
Electronic ISSN 2366-7486
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 5
Issue 3
Article Number 2000286
DOI https://doi.org/10.1002/adsu.202000286
Keywords cellulose, energy autonomous systems, fibre-based sensors, jute fibers, supercapacitors, sustainable energy storage, wearable electronics
Public URL http://researchrepository.napier.ac.uk/Output/2889460

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