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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14763
Title: Large amplification of triboelectric property by allicin to develop high performance cellulosic triboelectric nanogenerator
Authors: Roy S.
Ko H.-U.
Maji, Pradip K.
Van Hai L.
Kim J.
Published in: Chemical Engineering Journal
Abstract: Recently, cellulose has grabbed a tremendous attention in the fabrication of triboelectric nanogenerators (TENGs) because of their biodegradability and renewability. However, the weak surface polarity and inadequate surface functional groups severely limit its advancement towards high performance TENGs. This study unveils for the first time the majestic power of allicin extracted from garlic juice, in amplifying the triboelectric property of cellulose nanofibers (CNFs), aiming to develop a renewable high-performance cellulosic triboelectric nanogenerators (TENGs). Allicin was grafted onto CNF using a ‘thiol-ene’ click chemistry. It has been observed that after allicin modification, the CNF film became mechanically and thermally robust. The peak output voltage and current reached to 7.9 V and 5.13 μA, when modified film was used in a TENG, which was ~6.5 times greater than the pristine cellulose based TENG (1.23 V, 0.80 μA). Because of higher surface polarity, electron donating capacity and surface roughness of the modified film, the current density and power density increased from 0.2 to 1.28 µA/cm2 and 0.25 to 10.13 µW/cm2 i.e 6 and 41 times greater respectively, than the pristine cellulose TENG. Such large electrical enhancements surpasseed many recent reports on cellulose TENG. Furthermore, the allicin grafted TENG showed outstanding stability against humidity, long term cyclic load and environmental aging. These findings clearly demonstrated that tailoring the triboelectric performance by garlic juice could be a major breakthrough in the hunt for durable, high performance self-powered biodegradable TENGs. © 2019 Elsevier B.V.
Citation: Chemical Engineering Journal (2020), 385(): -
URI: https://doi.org/10.1016/j.cej.2019.123723
http://repository.iitr.ac.in/handle/123456789/14763
Issue Date: 2020
Publisher: Elsevier B.V.
Keywords: Allicin
Cellulose
Click chemistry
Grafting
Nanogenerator
Triboelectric
ISSN: 13858947
Author Scopus IDs: 55681796300
36955402800
56249287900
24448772200
47861080000
Author Affiliations: Roy, S., CRC for Nanocellulose Future Composites, Dept. of Mechanical Engineering, Inha University, South Korea, 100, Inha-Ro, Nam-Gu, Incheon, 22212, South Korea
Ko, H.-U., CRC for Nanocellulose Future Composites, Dept. of Mechanical Engineering, Inha University, South Korea, 100, Inha-Ro, Nam-Gu, Incheon, 22212, South Korea
Maji, P.K., Dept. of Polymer & Process Engineering, Indian Institute of Technology Roorkee, Saharanpur CampusU.P. 247001, India
Van Hai, L., CRC for Nanocellulose Future Composites, Dept. of Mechanical Engineering, Inha University, South Korea, 100, Inha-Ro, Nam-Gu, Incheon, 22212, South Korea
Kim, J., CRC for Nanocellulose Future Composites, Dept. of Mechanical Engineering, Inha University, South Korea, 100, Inha-Ro, Nam-Gu, Incheon, 22212, South Korea
Funding Details: The authors would like to thank Mr. Sangrok Lee for help in the electrical measurements. The authors also like to acknowledge the Ministry of Science, ICT and Future Planning (NRF-2015R1A3A2066301) through Creative Research Initiatives Program for financial support. Appendix A
Corresponding Author: Roy, S.; CRC for Nanocellulose Future Composites, Dept. of Mechanical Engineering, Inha University, South Korea, 100, Inha-Ro, Nam-Gu, South Korea; email: corporate00@gmail.com
Appears in Collections:Journal Publications [PE]

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