Preparation and characterization of coaxial multiwalled carbon nanotubes/polyaniline tubular nanocomposites for electrochemical energy storage in the presence of sodium alginate

2014 ◽  
Vol 193 ◽  
pp. 48-57 ◽  
Author(s):  
Wenling Wu ◽  
Yanfeng Li ◽  
Liuqing Yang ◽  
Yingxia Ma ◽  
Xu Yan
Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 285
Author(s):  
Lingfei Li ◽  
Qiu Sun ◽  
Xiangqun Chen ◽  
Zhaohua Jiang ◽  
Yongjun Xu

The low dielectric constant of the nonpolar polymer poly(1-butene) (PB-1) limits its application as a diaphragm element in energy storage capacitors. In this work, Ba(Zr0.2Ti0.8)O3-coated multiwalled carbon nanotubes (BZT@MWCNTs) were first prepared by using the sol–gel hydrothermal method and then modified with polydopamine (PDA) via noncovalent polymerization. Finally, PB-1 matrix composite films filled with PDA-modified BZT@MWCNTs nanoparticles were fabricated through a solution-casting method. Results indicated that the PDA-modified BZT@MWCNTs had good dispersion and binding force in the PB-1 matrix. These characteristics improved the dielectric and energy storage performances of the films. Specifically, the PDA-modified 10 vol% BZT@ 0.5 vol% MWCNTs/PB-1 composite film exhibited the best dielectric performance. At 1 kHz, the dielectric constant of this film was 25.43, which was 12.7 times that of pure PB-1 films. Moreover, its dielectric loss was 0.0077. Furthermore, under the weak electric field of 210 MV·m−1, the highest energy density of the PDA-modified 10 vol% BZT@ 0.5 vol% MWCNTs/PB-1 composite film was 4.57 J·cm−3, which was over 3.5 times that of PB-1 film (≈1.3 J·cm−3 at 388 MV·m−1).


Nano Letters ◽  
2007 ◽  
Vol 7 (4) ◽  
pp. 1086-1090 ◽  
Author(s):  
Paul Rice ◽  
T. Mitch Wallis ◽  
Stephen E. Russek ◽  
Pavel Kabos

2007 ◽  
Vol 111 (28) ◽  
pp. 10353-10358 ◽  
Author(s):  
A. Gohier ◽  
S. Point ◽  
M. A. Djouadi ◽  
A. Granier ◽  
T. M. Minea ◽  
...  

2012 ◽  
Vol 520 (14) ◽  
pp. 4816-4819 ◽  
Author(s):  
N. Ouldhamadouche ◽  
A. Achour ◽  
I. Musa ◽  
K. Ait Aissa ◽  
F. Massuyeau ◽  
...  

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