DataVXACS Applied Electronic MaterialsPaper
journal article·2024-07-23

Bi-filler Interacted β-Phase Enhancement in Polyvinylidene Fluoride Composited with Cellulose Nanocrystals and Nickel Ferrite: A Multifunctional Energy Harvester and Sleep Monitoring Sensor

Sathiyanathan Ponnan, Chitra Lekha C S, Mohammad Shamim Reza, Sreelakshmi Moozhiyil Purushothaman, Maite Fernandes-tronco, Marc Poncot, Hongdoo Kim, Sabu Thomas, Isabelle Royaud, Didier Rouxel, Nandakumar Kalarikkal

ACS Applied Electronic Materials· Volume 6· Issue 7
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Source abstract

Abstract

This work presents the fabrication of a composite fiber comprising cellulose nanocrystals (CNCs) and magnetic nickel ferrite (NFO) integrated with poly(vinylidene fluoride) (PVDF) for multifunctional energy harvesting (EH) from both mechanical vibrations and stray magnetic fields. The addition of NFO and CNCs enhances the electroactive phase within PVDF, resulting in bi-filler electrostatic interactions between NFO and CNCs. The fabricated EH system is capable of generating a significant magnetoelectric voltage, achieving 20 mV/cm even in the presence of a weak magnetic field of 4 Oe, for both PNFO (PVDF/NFO) and PCNNF (PVDF/CNC/NFO) composites, respectively. PCNNF exhibits superior piezoelectric energy harvesting performance, with a higher peak-to-peak output voltage ( V p-p ) of 14.68 V, along with a power density and current density of 49.25 μW/cm 3 and 14.71 μA/cm 3, respectively, when tested under a load resistance of 6.2 MΩ at a frequency of 5 Hz and an applied force of 8 N. Finally, a sleep monitoring application was demonstrated using the fabricated PENG device potentially applicable in healthcare.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsComposites

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Innovative Energy Harvesting Technologies · Conducting polymers and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam 686560, Kerala, India

Department of Advanced Materials Engineering for Information & Electronics, Kyung Hee University, Yongin 17104, Korea

Université de Lorraine, CNRS, IJL, 54000 Nancy, France

School of Nanoscience and Nanotechnology, School of Energy Materials and School of Polymer Science and Technology, Mahatma Gandhi University, Kottayam 686560, Kerala, India

Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, Johannesburg, South Africa

School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam 686560, Kerala, India

International Centre for Ultrafast Studies, Mahatma Gandhi University, Kottayam 686560, Kerala, India

Funding

Indo-French Centre for the Promotion of Advanced Research · University Grants Commission · Department of Atomic Energy, Government of India · Science and Engineering Research Board · Board of Research in Nuclear Sciences · Ministry of Education, India

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