Journal
NANOTECHNOLOGY
Volume 23, Issue 38, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/23/38/385701
Keywords
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Funding
- National Science Foundation [0953674]
- China Scholarship Council [2009663056]
- Direct For Education and Human Resources
- Division Of Graduate Education [0742402] Funding Source: National Science Foundation
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [0953674] Funding Source: National Science Foundation
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Porous polyaniline (PANI)-coated multi-walled carbon nanotube (MWNT) core/shell nanohybrids were fabricated through in situ polymerization and subsequently assembled into macroscopic composites. N-2 adsorption/desorption analysis indicated that the volume of nanopores increased significantly, which could make a significant contribution to phonon scattering. Thermal annealing was also carried out to improve the Seebeck coefficient of the as-produced nanocomposites. The optimal sample showed electrical conductivity of 14.1 S cm(-1), a Seebeck coefficient of 79.8 mu V K-1 and thermal conductivity of 0.27 W mK(-1), resulting in a highest figure of merit (ZT) of 0.01 at a very low loading of MWNTs (<1 wt%). These results will provide a potential direction to enhance thermoelectric performance of organic materials and also facilitate the application of organic materials in thermal energy harvesting or cooling.
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