TY - JOUR
T1 - Tiny bubble triboelectric nanogenerator functionalized by liquid film rupture
AU - Dong, Kejian
AU - Chen, Jingtan
AU - Xia, Xin
AU - Deng, Wei
AU - Khan, Shahid Ali
AU - Zhang, Xuan
AU - Zi, Yunlong
AU - Zhao, Jiyun
PY - 2024/12/1
Y1 - 2024/12/1
N2 - As an important energy carrier, bubble commonly exists in undersea and liquid-gas two-phase systems. Efficiently utilizing the bubble energy is critical for potential applications in energy harvesting and sensing in two-phase environment. However, the micro liquid layer inhibits the complete contact and restricts the performance. Herein, we proposed strategies for tiny bubble triboelectric nanogenerator (TB-TENG) featuring liquid film rupture to eliminate the screen between bubble and dielectric layer. We carried out optimization design by invasively rupturing the liquid film, achieving stable open-circuit voltage peak and transferred charge of 8.3 V and 3 nC by a 110-μL bubble, with a high peak power density yielding the existing tube-based studies. Additionally, for noninvasive and spontaneous liquid film rupture, a scalable bubble regulator was fabricated, which integrated the irregularly dispersed bubbly flow into slug flow. We demonstrated the self-powered undersea gas leakage detection system combining the TB-TENG with the bubble regulator. Assisted with the good bubble regulation adaptability, the total leakage gas volume and rate were measured based on the voltage signal, with a varied leakage rate of 0.72–6 mL/min. The strategy provides insights for the related research in liquid-gas two-phase systems in nature and industry. © 2024 Elsevier Ltd.
AB - As an important energy carrier, bubble commonly exists in undersea and liquid-gas two-phase systems. Efficiently utilizing the bubble energy is critical for potential applications in energy harvesting and sensing in two-phase environment. However, the micro liquid layer inhibits the complete contact and restricts the performance. Herein, we proposed strategies for tiny bubble triboelectric nanogenerator (TB-TENG) featuring liquid film rupture to eliminate the screen between bubble and dielectric layer. We carried out optimization design by invasively rupturing the liquid film, achieving stable open-circuit voltage peak and transferred charge of 8.3 V and 3 nC by a 110-μL bubble, with a high peak power density yielding the existing tube-based studies. Additionally, for noninvasive and spontaneous liquid film rupture, a scalable bubble regulator was fabricated, which integrated the irregularly dispersed bubbly flow into slug flow. We demonstrated the self-powered undersea gas leakage detection system combining the TB-TENG with the bubble regulator. Assisted with the good bubble regulation adaptability, the total leakage gas volume and rate were measured based on the voltage signal, with a varied leakage rate of 0.72–6 mL/min. The strategy provides insights for the related research in liquid-gas two-phase systems in nature and industry. © 2024 Elsevier Ltd.
KW - Adaptive regulator
KW - Bubble
KW - Energy harvesting
KW - Gas leakage detection
KW - Triboelectric nanogenerator
UR - http://www.scopus.com/inward/record.url?scp=85203840507&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85203840507&origin=recordpage
U2 - 10.1016/j.nanoen.2024.110256
DO - 10.1016/j.nanoen.2024.110256
M3 - RGC 21 - Publication in refereed journal
SN - 2211-2855
VL - 131
JO - Nano Energy
JF - Nano Energy
IS - Part A
M1 - 110256
ER -