期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 130, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2019.105754
关键词
MXene; Electrical conductivity; Thermal conductivity; Triboelectric nanogenerator
资金
- National Natural Science Foundation of China [51877132]
Highly conductive and flexible materials have many applications in the electrical and electronic fields, while the realization of high electrical/thermal conductivity by a green, simple and efficient approach is still challenging. Herein a simple method was proposed to construct three-dimensional Ti3C2Tx (3D-MXene) skeleton without using adhesive agents. After incorporated into polydimethylsiloxane (PDMS) matrix, the resultant 3D-MXene/PDMS nanocomposites exhibited excellent electrical conductivity of 5.5 S/cm, which was nearly 14 orders of magnitude higher than that of the neat PDMS. On the other hand, the nanocomposites show a thermal conductivity enhancement of about 220% at a low MXene content of 2.5 vol% in comparison with neat PDMS. Moreover, the output current of 3D-MXene/PDMS based triboelectric nanogenerators (TENGs) was greatly enhanced because of the significantly decreased electrical resistance. This finding can be applied to TENGs with capacitor structures and can also widen the practical applications of MXene in the field of thermal management, sensors and energy harvesters.
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