Advanced glass fiber polymer composite laminate operating as a thermoelectric generator: A structural device for micropower generation and potential large-scale thermal energy harvesting
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Contributors
Abstract
This study demonstrates for the first time a structural glass fiber-reinforced polymer (GFRP) composite laminate with efficient thermal energy harvesting properties as a thermoelectric generator (TEG). This TEG laminate was fabricated by stacking unidirectional glass fiber (GF) laminae coated with p- and n-type single-wall carbon nanotube (SWCNT) inks via a blade coating technique. According to their thermoelectric (TE) response, the p- and n-type GF-SWCNT fabrics exhibited Seebeck coefficients of +23 and -29 μV/K with 60 and 118 μW/m·K2 power factor values, respectively. The in-series p-n interconnection of the TE-enabled GF-SWCNT fabrics and their subsequent impregnation with epoxy resin effectively generated an electrical power output of 2.2 μW directly from a 16-ply GFRP TEG laminate exposed to a temperature difference (ΔT) of 100 K. Both experimental and modeling work validated the TE performance. The structural integrity of the multifunctional GFRP was tested by three-point bending coupled with online monitoring of the steady-state TE current (Isc) at a ΔT of 80 K. Isc was found to closely follow all transitions and discontinuities related to structural damage in the stress/strain curve, thus showing its potential to serve the functions of power generation and damage monitoring.
Details
Original language | English |
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Pages (from-to) | 24138-24153 |
Number of pages | 16 |
Journal | ACS Applied Materials and Interfaces |
Volume | 13 |
Issue number | 20 |
Publication status | Published - 26 May 2021 |
Peer-reviewed | Yes |
External IDs
PubMed | 33988382 |
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Keywords
Research priority areas of TU Dresden
DFG Classification of Subject Areas according to Review Boards
Subject groups, research areas, subject areas according to Destatis
Sustainable Development Goals
ASJC Scopus subject areas
Keywords
- advanced glass fiber-reinforced polymer (GFRP) composites, in-plane thermal gradient, large-scale thermal energy harvesting, multifunctional composites, organic thermoelectrics, Seebeck effect, structural TEG laminate, thermoelectric modeling