TY - JOUR
T1 - High-performance flexible triboelectric nanogenerator based on micropatterned allicin-grafted cellulose film
AU - Song, Jong Min
AU - Latif, Muhammad
AU - Jiang, Yangxiaozhe
AU - Ounaies, Zoubeida
AU - Kim, Jaehwan
N1 - Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2024/6
Y1 - 2024/6
N2 - Developing high-performance cellulose-based flexible triboelectric nanogenerators (TENGs) remains challenging due to the weak surface polarity of cellulose. In this work, allicin-grafted cellulose nanofiber films (Alc-CNF) containing square micropatterns on the surface are fabricated, and their successful application for bio-based TENGs with enhanced triboelectric output performance is demonstrated. Allicin was chemically grafted onto the CNFs through the utilization of 'thio-ene' click chemistry. Square micropatterns with different gaps (40, 50, 60 μm) between patterns were created on the CNF film using lithography, then casting Alc-CNF suspension and drying in cleanroom conditions. The Alc-CNF TENG, having a 50 μm gap between the patterns, showed an output power of 87 μW (387 mW/m2), 260 times larger than the pure CNF TENG and 35 times larger than the no-patterned Alc-CNF TENG. The performance is related to the higher surface polarity, electron-donating tendency, and surface roughness of the Alc-CNF film.
AB - Developing high-performance cellulose-based flexible triboelectric nanogenerators (TENGs) remains challenging due to the weak surface polarity of cellulose. In this work, allicin-grafted cellulose nanofiber films (Alc-CNF) containing square micropatterns on the surface are fabricated, and their successful application for bio-based TENGs with enhanced triboelectric output performance is demonstrated. Allicin was chemically grafted onto the CNFs through the utilization of 'thio-ene' click chemistry. Square micropatterns with different gaps (40, 50, 60 μm) between patterns were created on the CNF film using lithography, then casting Alc-CNF suspension and drying in cleanroom conditions. The Alc-CNF TENG, having a 50 μm gap between the patterns, showed an output power of 87 μW (387 mW/m2), 260 times larger than the pure CNF TENG and 35 times larger than the no-patterned Alc-CNF TENG. The performance is related to the higher surface polarity, electron-donating tendency, and surface roughness of the Alc-CNF film.
UR - https://www.scopus.com/pages/publications/85188595147
UR - https://www.scopus.com/pages/publications/85188595147#tab=citedBy
U2 - 10.1016/j.mtnano.2024.100475
DO - 10.1016/j.mtnano.2024.100475
M3 - Article
AN - SCOPUS:85188595147
SN - 2588-8420
VL - 26
JO - Materials Today Nano
JF - Materials Today Nano
M1 - 100475
ER -