Fire-retardant, self-extinguishing triboelectric nanogenerators
Artikel i vetenskaplig tidskrift, 2019

The development of highly sensitive sensors and power generators that could function efficiently in extreme temperatures and contact with fire can be lifesaving but challenging to accomplish. Herein, we report, for the first time, a fire-retardant and self-extinguishing triboelectric nanogenerator (FRTENG), which can be utilized as a motion sensor and/or power generator in occupations such as oil drilling, firefighting or working in extreme temperature environments with flammable and combustible materials. The device takes advantage of the excellent thermal properties of carbon derived from resorcinol-formaldehyde aerogel whose electrical, mechanical and triboelectric properties have been improved via the introduction of Polyacrylonitrile nanofibers and graphene oxide nanosheets. This FRTENG is not flammable even after 90 s of trying, whereas conventional triboelectric materials were entirely consumed by fire under the same conditions. The developed device shows exceptional charge transfer characteristics, leading to a potential difference up to 80 V and a current density up to 25 mu A/m(2). When integrated into firefighter's shoes, the FRTENG is able to discern the movements of a firefighter in hazardous situations, while providing the high thermal stability missing in conventional TENGs. The fire-retardant and self-extinguishing characteristics offered by the FRTENG makes it a path-breaking device for lifesaving wearable applications.

Fire-retardant

Energy harvesting

Triboelectric nanogenerators

Self-Extinguishing

Wearable sensors

Författare

Abdelsalam Ahmed

McMaster University

Maher F. El-Kady

University of California at Los Angeles

UCLA, Dept Mat Sci & Engn

Islam Hassan

McMaster University

Ayman Negm

McMaster University

Amir Masoud Pourrahimi

University of Chemistry and Technology, Prague

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Christian Müller Group

Mit Muni

University of California at Los Angeles

Ponnambalam Ravi Selvaganapathy

McMaster University

Richard B. Kaner

UCLA, Dept Mat Sci & Engn

University of California at Los Angeles

Nano Energy

2211-2855 (ISSN)

Vol. 59 336-345

Ämneskategorier

Annan kemiteknik

Annan samhällsbyggnadsteknik

Annan elektroteknik och elektronik

DOI

10.1016/j.nanoen.2019.02.026

Mer information

Senast uppdaterat

2019-09-18