TY - JOUR
T1 - Ultrastrong-polar polyacrylonitrile organic-inorganic architected nanogenerators with synergistic triboelectric behavior for efficient biomechanical energy harvesting and self-powered sensing
AU - Tang, Yun
AU - Xu, Bingang
AU - Gao, Yuanyuan
AU - Li, Zihua
AU - Tan, Di
AU - Li, Meiqi
AU - Liu, Yufang
AU - Huang, Junxian
N1 - Funding Information:
The authors would like to acknowledge the funding support from The Hong Kong Polytechnic University (Project No. G-YWA2 , 1-CD43 ) for the work reported here.
Publisher Copyright:
© 2022
PY - 2022/12/1
Y1 - 2022/12/1
N2 - Accompanying the boom in smart wearable electronics, triboelectric nanogenerators (TENGs) as burgeoning mechanical-to-electrical harvesters have drawn expanding interest. In this study, a kind of novel flexible, high-output TENGs with PAN/FCNT as tribopositive layer and PVDF/PDMS/TiO2 as tribonegative layer have been designed and developed. For a synergistic effect, PAN and PVDF possessing strongly polar -C[tbnd]N and -F groups are handpicked as dielectric hosts to ensure maximum charge induction and triboelectrification. Highly conductive FCNT is introduced into the insulated PAN tribopositive layer, serving as the charge transport path to reduce surface charge loss. Additional PDMS is beneficial to strengthen the triboelectronegativity of PVDF tribonegative layer, and engaged as the charge trapping sites to diminish electro-discharge in air. TiO2 is employed as filler to build an inorganic-organic (TiO2-PVDF/PDMS) composite dielectric layer because of its triple functions of potent electron capture, high dielectric constant, and promoting the formation of electroactive β-phase PVDF. Meanwhile, the hydrogen bonds between PVDF, TiO2 with semi-crosslinked PDMS can stabilize interface and enhance friction output. Consequently, the assembled TENGs exhibit an ultra-high peak-to-peak voltage of 2088 V and a maximum output power of 7.2 W/m2, which shows promising applications in energy supplying and self-powered sensing fields.
AB - Accompanying the boom in smart wearable electronics, triboelectric nanogenerators (TENGs) as burgeoning mechanical-to-electrical harvesters have drawn expanding interest. In this study, a kind of novel flexible, high-output TENGs with PAN/FCNT as tribopositive layer and PVDF/PDMS/TiO2 as tribonegative layer have been designed and developed. For a synergistic effect, PAN and PVDF possessing strongly polar -C[tbnd]N and -F groups are handpicked as dielectric hosts to ensure maximum charge induction and triboelectrification. Highly conductive FCNT is introduced into the insulated PAN tribopositive layer, serving as the charge transport path to reduce surface charge loss. Additional PDMS is beneficial to strengthen the triboelectronegativity of PVDF tribonegative layer, and engaged as the charge trapping sites to diminish electro-discharge in air. TiO2 is employed as filler to build an inorganic-organic (TiO2-PVDF/PDMS) composite dielectric layer because of its triple functions of potent electron capture, high dielectric constant, and promoting the formation of electroactive β-phase PVDF. Meanwhile, the hydrogen bonds between PVDF, TiO2 with semi-crosslinked PDMS can stabilize interface and enhance friction output. Consequently, the assembled TENGs exhibit an ultra-high peak-to-peak voltage of 2088 V and a maximum output power of 7.2 W/m2, which shows promising applications in energy supplying and self-powered sensing fields.
KW - Hydrogen bonds
KW - Organic-inorganic architecture
KW - Polyacrylonitrile
KW - Synergistic enhancement
KW - Triboelectric nanogenerators
UR - http://www.scopus.com/inward/record.url?scp=85138332927&partnerID=8YFLogxK
U2 - 10.1016/j.nanoen.2022.107833
DO - 10.1016/j.nanoen.2022.107833
M3 - Journal article
AN - SCOPUS:85138332927
SN - 2211-2855
VL - 103
JO - Nano Energy
JF - Nano Energy
M1 - 107833
ER -