Self-Supporting Electrode Based-on SWNT Paper for Supercapacitors

2011 ◽  
Vol 399-401 ◽  
pp. 284-288
Author(s):  
Xiao Xu ◽  
Lu Ming Qian ◽  
Lei He ◽  
Jian Fei Che

Self-supporting film of single-walled carbon nanotubes (SWNTs), also known as SWNT paper, is held together by Van der Waals force without any chemical binders. Prepared by vacuum filtration method, SWNT paper was then decorated wirh polypyrrole (PPy) through pulsed potentio amperometric polymerization. The results indicated that the SWNT paper had a typical network structure, after polymerizing PPy, cauliflower-like structure was observed on the surface of SWNT ropes. The composite thin film has good cyclic voltammetry (CV) property and the specific capacitance wass ca.420Fg-1, which was much larger than that of pure SWNT paper.

2020 ◽  
Vol 62 (6) ◽  
pp. 960
Author(s):  
И.А. Тамбасов ◽  
А.С. Воронин ◽  
Н.П. Евсевская ◽  
Ю.М. Кузнецов ◽  
А.В. Лукьяненко ◽  
...  

Thin films based on single walled carbon nanotubes with a thickness of 11 ± 3 to 157 ± 18 nm were formed using vacuum filtration. The thermal conductivity coefficient in thin films was studied depending on the thickness and temperature up to 450 K using the 3ω method. It was found that, in the region of 49 nm, the supplied heat from the gold strip began to efficiently propagate into the plane of the thin film. The thermal conductivity coefficient for thin films with a thickness of 49 ± 8 nm was measured according to the 3ω method for bulk samples. It was found that the thermal conductivity in thin films based on single walled carbon nanotubes strongly depends on the thickness and temperature. The thermal conductivity increased sharply (~ 60 times) with increasing thickness from 11 ± 3 to 65 ± 4 nm. In addition, it was revealed that the thermal conductivity coefficient for 157 ± 18 nm thin film rapidly decreased from 211 ± 11 to 27.5 ± 1.4 W · m-1 · K-1 for 300 and 450 K, respectively.


2014 ◽  
Vol 64 (3) ◽  
pp. 488-491 ◽  
Author(s):  
Dong-Won Park ◽  
Beom Soo Kim ◽  
Serin Park ◽  
Won-Jin Choi ◽  
Cheol-Soo Yang ◽  
...  

2018 ◽  
Vol 29 (10) ◽  
pp. 105404 ◽  
Author(s):  
Pramod M Rajanna ◽  
Evgenia P Gilshteyn ◽  
Timur Yagafarov ◽  
Alena K Aleekseeva ◽  
Anton S Anisimov ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document