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

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.

Citation

Manjakkal, L., Franco, F. F., Pullanchiyodan, A., González‐Jiménez, M., & Dahiya, R. (2021). Natural Jute Fibre‐Based Supercapacitors and Sensors for Eco‐Friendly Energy Autonomous Systems. Advanced Sustainable Systems, 5(3), Article 2000286. https://doi.org/10.1002/adsu.202000286

• 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