scholarly journals Carbon-Based Fibrous EDLC Capacitors and Supercapacitors

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
C. Lekakou ◽  
O. Moudam ◽  
F. Markoulidis ◽  
T. Andrews ◽  
J. F. Watts ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Carbon Fibre ◽  
Woven Fabric ◽  
Superior Performance ◽  
Multiwall Carbon Nanotube ◽  
Electrochemical Double Layer Capacitors ◽  
Electrochemical Double Layer ◽  
Improved Performance ◽  
Multiwall Carbon ◽  
Carbon Based

This paper investigates electrochemical double-layer capacitors (EDLCs) including two alternative types of carbon-based fibrous electrodes, a carbon fibre woven fabric (CWF) and a multiwall carbon nanotube (CNT) electrode, as well as hybrid CWF-CNT electrodes. Two types of separator membranes were also considered. An organic gel electrolyte PEO-LiCIO4-EC-THF was used to maintain a high working voltage. The capacitor cells were tested in cyclic voltammetry, charge-discharge, and impedance tests. The best separator was a glass fibre-fine pore filter. The carbon woven fabric electrode and the corresponding supercapacitor exhibited superior performance per unit area, whereas the multiwall carbon nanotube electrode and corresponding supercapacitor demonstrated excellent specific properties. The hybrid CWF-CNT electrodes did not show a combined improved performance due to the lack of carbon nanotube penetration into the carbon fibre fabric.

scholarly journals All-Fiber Pyro- and Piezo-electric Nanogenerator for IoT Based Self-Powered Health-Care Monitoring

2021 ◽  
Author(s):  
Biswajit Mahanty ◽  
Sujoy Kumar Ghosh ◽  
Kuntal Maity ◽  
KRITTISH ROY ◽  
Subrata Sarkar ◽  
...  
Keyword(s):  
Health Care ◽  
Carbon Nanotube ◽  
Vinylidene Fluoride ◽  
Electrospun Nanofibers ◽  
Multiwall Carbon Nanotube ◽  
Poly Vinylidene Fluoride ◽  
Self Powered ◽  
Health Care Monitoring ◽  
Multiwall Carbon ◽  
Piezo Electric

In this work, an all-fiber pyro- and piezo-electric nanogenerator (PPNG) is designed by multiwall carbon nanotube (MWCNT) doped poly(vinylidene fluoride) (PVDF) electrospun nanofibers as the active layer and interlocked conducting...

Synthesis, thermal, mechanical and rheological properties of multiwall carbon nanotube/waterborne polyurethane nanocomposite

2005 ◽  
Vol 65 (11-12) ◽  
pp. 1703-1710 ◽  
Author(s):  
Hsu-Chiang Kuan ◽  
Chen-Chi M. Ma ◽  
Wei-Ping Chang ◽  
Siu-Ming Yuen ◽  
Hsin-Ho Wu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Rheological Properties ◽  
Waterborne Polyurethane ◽  
Multiwall Carbon Nanotube ◽  
Multiwall Carbon

Isotropic Hedgehog-Shaped-TiO2/Functional-Multiwall-Carbon-Nanotube Micromotors with Phototactic Motility in Fuel-Free Environments

2021 ◽  
Vol 13 (4) ◽  
pp. 5406-5417
Author(s):  
Huaide Jiang ◽  
Xiaoli He ◽  
Yanmei Ma ◽  
Bi Fu ◽  
Xingui Xu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Multiwall Carbon Nanotube ◽  
Multiwall Carbon

The Humidity Sensitive Behavior of Poly(Ethyleneimine)/Multiwall Carbon Nanotube Composite Films

2012 ◽  
Vol 531-532 ◽  
pp. 588-591
Author(s):  
Tao Zhu ◽  
Guang Zhong Xie ◽  
Ya Dong Jiang ◽  
Jian Liao ◽  
Hui Ling Tai
Keyword(s):  
Carbon Nanotube ◽  
Relative Humidity ◽  
Composite Films ◽  
Multiwall Carbon Nanotube ◽  
Sensing Material ◽  
Nanotube Composites ◽  
Interdigitated Microelectrode ◽  
Carbon Nanotube Composite ◽  
Multiwall Carbon ◽  
Sensitive Behavior

In this paper, a novel humidity sensor based on polymer-carbon nanotube composites was prepared and characterized. Two different methods were adopted to fabricate the humidity-sensing film for these sensors. The surface of the films was observed by a scanning electron microscope (SEM). The sensing material made up of poly(ethyleneimine) and multiwall carbon nanotube was sprayed on the interdigitated microelectrode pairs(IDTs). The resistance between the two electrodes was measured at different relative humidity levels at 19°C. The data shows that the resistance increases with the rise of the relative humidity over the range of 5-90% RH and that, the resistance increases almost linearly in the range of 5-71% RH. The response of the sensors to NO2 and NH3 were also examined, and the results reveal that the sensor is not sensitive to both of them.

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