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Room Temperature Electrical and Thermal Switching CNT/Hexadecane Composites
Author(s) -
Sun P. C.,
Wu Y. L.,
Gao J. W.,
Cheng G. A.,
Chen G.,
Zheng R. T.
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201302165
Subject(s) - materials science , carbon nanotube , composite material , thermal conductivity , electrical resistivity and conductivity , thermal stability , hexadecane , thermal , surface modification , chemical engineering , thermodynamics , chemistry , physics , organic chemistry , electrical engineering , engineering
A large contrast in the electrical and thermal conductivities via a first order phase transition in surface‐functionalized carbon nanotube(CNT)/hexadecane composites is reported. Surface modification of the CNTs improves the electrical conductivity contrast and the stability of the composites. We demonstrate that, with these composites, the electrical conductivity changes above 10 5 times and the thermal conductivity varies up to 3 times at 18 °C.