Natural jute fibre-based supercapacitors and sensors for eco-friendly energy autonomous systems

Manjakkal, L. , Fantinelli Franco, F. , Pullanchiyodan, A., González-Jiménez, M. and Dahiya, R. (2021) Natural jute fibre-based supercapacitors and sensors for eco-friendly energy autonomous systems. Advanced Sustainable Systems, 5(3), 2000286. (doi: 10.1002/adsu.202000286)

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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.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Pullanchiyodan, Dr Abhilash and Dahiya, Professor Ravinder and Fantinelli Franco, Ms Fabiane and Gonzalez Jimenez, Dr Mario and Manjakkal, Dr Libu
Authors: Manjakkal, L., Fantinelli Franco, F., Pullanchiyodan, A., González-Jiménez, M., and Dahiya, R.
College/School:College of Science and Engineering > School of Chemistry
College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Advanced Sustainable Systems
ISSN (Online):2366-7486
Published Online:27 January 2021
Copyright Holders:Copyright © 2021 The Authors
First Published:First published in Advanced Sustainable Systems 5(3):2000286
Publisher Policy:Reproduced under a Creative Commons licence

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
301728Engineering Fellowships for Growth: Printed Tactile SKINRavinder DahiyaEngineering and Physical Sciences Research Council (EPSRC)EP/R029644/1ENG - Electronics & Nanoscale Engineering
172399Mapping and controlling nucleationKlaas WynneEngineering and Physical Sciences Research Council (EPSRC)EP/N007417/1Chemistry