TY - JOUR
T1 - Fluorinated Covalent Organic Framework as a Positive Tribo-Material for High-Performance Triboelectric Nanogenerators
AU - Shi, Lin
AU - Kale, Vinayak S.
AU - Tian, Zhengnan
AU - Xu, Xiangming
AU - Lei, Yongjiu
AU - Kandambeth, Sharath
AU - Wang, Yizhou
AU - Parvatkar, Prakash T.
AU - Shekhah, Osama
AU - Eddaoudi, Mohamed
AU - Alshareef, Husam N.
N1 - Funding Information:
L.S. and V.S.K. contributed equally to this work. The research reported in this manuscript was funded by the King Abdullah University of Science and Technology (KAUST) under competitive research grant number OSR‐CRG2017‐3379.
Publisher Copyright:
© 2023 Wiley-VCH GmbH.
PY - 2023/3/16
Y1 - 2023/3/16
N2 - Along with the increasingly wide application of intelligent electronics, triboelectric nanogenerator (TENG), as a promising sustainable micro-power source has attracted considerable attention recently. However, most of the reported research focuses on negative triboelectric materials, while research on alternative positive tribo-layers is still limited. In this study, a new highly fluorinated covalent organic framework (COF) Tp-TFAB is successfully synthesized and utilized as positive triboelectric materials for high-performance TENGs. Unusually, compared with the non-fluorinated Tp-TAPB COF, both the pristine Tp-TFAB COF and corresponding hybrid films with polyvinyl alcohol (PVA) based TENGs demonstrate much higher triboelectric performance. Especially, a PVC-PVA/FTC TENG composed of polyvinyl chloride (PVC) and hybrid PVA/Tp-TFAB (PVA/FTC) films reveal much superior triboelectric performance with a short-circuit current density of 26.34 mA m−2, a transferred charge density of 148.5 µC m−2, and a maximum peak power density of 8.24 W m−2, nearly six times higher than that of the PVC-PVA TENG. Detailed investigations revealed that the fluorinated Tp-TFAB COF has enhanced electron donating ability, which significantly boosts the triboelectric output of TENGs. This study provides an effective strategy of chemically designing and synthesizing new alternative triboelectric materials, which will pave the way to significantly enhance the triboelectric performance of TENGs.
AB - Along with the increasingly wide application of intelligent electronics, triboelectric nanogenerator (TENG), as a promising sustainable micro-power source has attracted considerable attention recently. However, most of the reported research focuses on negative triboelectric materials, while research on alternative positive tribo-layers is still limited. In this study, a new highly fluorinated covalent organic framework (COF) Tp-TFAB is successfully synthesized and utilized as positive triboelectric materials for high-performance TENGs. Unusually, compared with the non-fluorinated Tp-TAPB COF, both the pristine Tp-TFAB COF and corresponding hybrid films with polyvinyl alcohol (PVA) based TENGs demonstrate much higher triboelectric performance. Especially, a PVC-PVA/FTC TENG composed of polyvinyl chloride (PVC) and hybrid PVA/Tp-TFAB (PVA/FTC) films reveal much superior triboelectric performance with a short-circuit current density of 26.34 mA m−2, a transferred charge density of 148.5 µC m−2, and a maximum peak power density of 8.24 W m−2, nearly six times higher than that of the PVC-PVA TENG. Detailed investigations revealed that the fluorinated Tp-TFAB COF has enhanced electron donating ability, which significantly boosts the triboelectric output of TENGs. This study provides an effective strategy of chemically designing and synthesizing new alternative triboelectric materials, which will pave the way to significantly enhance the triboelectric performance of TENGs.
KW - covalent organic frameworks
KW - electron transfers
KW - fluorination
KW - triboelectric nanogenerators
UR - http://www.scopus.com/inward/record.url?scp=85146265132&partnerID=8YFLogxK
U2 - 10.1002/adfm.202212891
DO - 10.1002/adfm.202212891
M3 - Article
AN - SCOPUS:85146265132
SN - 1616-301X
VL - 33
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 12
M1 - 2212891
ER -