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    Enhanced actuation in functionalized carbon nanotube–Nafion composites

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    Type
    Article
    Authors
    Lian, Huiqin
    Qian, Weizhong
    Estevez, Luis
    Liu, Hailan
    Liu, Yuexian
    Jiang, Tao
    Wang, Kuisheng
    Guo, Wenli
    Giannelis, Emmanuel P.
    KAUST Grant Number
    KUS-C1-018-02
    Date
    2011-08
    Permanent link to this record
    http://hdl.handle.net/10754/598178
    
    Metadata
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    Abstract
    The fabrication and electromechanical performance of functionalized carbon nanotube (FCNT)-Nafion composite actuators were studied. The CNTs were modified successfully with polyethylene glycol (PEG), as verified by thermogravimetric analysis (TGA) and Fourier transform infrared (FT-IR) spectroscopy. Scanning electron microscopy (SEM) images show that the FCNTs are homogeneously dispersed in the Nafion matrix. The properties of FCNT-Nafion composites in terms of water uptake, ion exchange capacity, proton conductivity, dynamic mechanical properties, and actuation behavior were evaluated. The results show that the sample with 0.5 wt% FCNT exhibits the best overall behavior. Its storage modulus is 2.4 times higher than that of Nafion. In addition, the maximum generated strain and the blocking force for the same sample are 2 and 2.4 times higher compared to the neat Nafion actuator, respectively. © 2011 Elsevier B.V.
    Citation
    Lian H, Qian W, Estevez L, Liu H, Liu Y, et al. (2011) Enhanced actuation in functionalized carbon nanotube–Nafion composites. Sensors and Actuators B: Chemical 156: 187–193. Available: http://dx.doi.org/10.1016/j.snb.2011.04.012.
    Sponsors
    The carbon nanotube sample was provided by Tsinghua Univ., China. This work was supported by the Natural Science Foundation of China (NSFC, No. 51063009) and the Beijing Natural Science Foundation of China (No. KZ200910017001). This publication was also based on work supported in part by Award No. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST).
    Publisher
    Elsevier BV
    Journal
    Sensors and Actuators B: Chemical
    DOI
    10.1016/j.snb.2011.04.012
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.snb.2011.04.012
    Scopus Count
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