TY - JOUR
T1 - Bimetallic nanoporous carbon-based direct-current triboelectric nanogenerators for biomechanical energy harvesting and sensing
AU - Rahman, Muhammad Toyabur
AU - Kim, Young Seong
AU - Rahman, Md Sazzadur
AU - Lim, Joong Yeon
AU - Kim, Seonghwan
N1 - Publisher Copyright:
© 2025 The Authors
PY - 2025/9/1
Y1 - 2025/9/1
N2 - A high-power density direct current triboelectric nanogenerator (DC-TENG) presents a promising solution for sustainable and distributed energy supply in the Industry 4.0 era. This study introduces a contact-separation mode DC-TENG that incorporates core-shell metal-organic framework-derived bimetallic nanoporous carbon (BNPC) as a functional nanofiller in the negative elastomer tribo-layer, significantly enhancing its performance. The BNPC's high surface area and porosity improve dielectric properties and charge trapping, while its bimetallic components suppress charge recombination through interfacial polarization effects. A Kapton-based mechanical rectifier is integrated to enable direct DC output, simplifying system design and enhancing energy utilization. The optimized BNPC@elastomer composite-based DC-TENG (BNDC-TENG) achieves a peak power density of 6.32 W/m2. The device demonstrates remarkable durability over 43,000 cycles and can directly charge capacitors and power small electronics. The BNDC-TENG efficiently harvests biomechanical energy from human motion and functions as a self-powered sensor for real-time activity monitoring, including walking and running detection. This work introduces innovative materials and simplified architecture for high-performance DC-TENGs, advancing sustainable energy harvesting and next-generation self-powered sensing applications.
AB - A high-power density direct current triboelectric nanogenerator (DC-TENG) presents a promising solution for sustainable and distributed energy supply in the Industry 4.0 era. This study introduces a contact-separation mode DC-TENG that incorporates core-shell metal-organic framework-derived bimetallic nanoporous carbon (BNPC) as a functional nanofiller in the negative elastomer tribo-layer, significantly enhancing its performance. The BNPC's high surface area and porosity improve dielectric properties and charge trapping, while its bimetallic components suppress charge recombination through interfacial polarization effects. A Kapton-based mechanical rectifier is integrated to enable direct DC output, simplifying system design and enhancing energy utilization. The optimized BNPC@elastomer composite-based DC-TENG (BNDC-TENG) achieves a peak power density of 6.32 W/m2. The device demonstrates remarkable durability over 43,000 cycles and can directly charge capacitors and power small electronics. The BNDC-TENG efficiently harvests biomechanical energy from human motion and functions as a self-powered sensor for real-time activity monitoring, including walking and running detection. This work introduces innovative materials and simplified architecture for high-performance DC-TENGs, advancing sustainable energy harvesting and next-generation self-powered sensing applications.
KW - Biomechanical energy
KW - Direct current
KW - Metal-organic framework
KW - Self-powered sensors
KW - Triboelectric nanogenerator
UR - https://www.scopus.com/pages/publications/105008380705
U2 - 10.1016/j.cej.2025.164938
DO - 10.1016/j.cej.2025.164938
M3 - Article
AN - SCOPUS:105008380705
SN - 1385-8947
VL - 519
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 164938
ER -