Supercapacitor performance of binder-free buckypapers from multiwall carbon nanotubes synthesized at different temperatures

2016 ◽  
Vol 253 (12) ◽  
pp. 2406-2412 ◽  
Author(s):  
K. M. Popov ◽  
V. E. Arkhipov ◽  
A. G. Kurenya ◽  
E. O. Fedorovskaya ◽  
K. A. Kovalenko ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwall Carbon Nanotubes ◽  
Different Temperatures ◽  
Supercapacitor Performance ◽  
Binder Free ◽  
Multiwall Carbon

Supercapacitor performance of vertically aligned multiwall carbon nanotubes produced by aerosol-assisted CCVD method

2014 ◽  
Vol 139 ◽  
pp. 165-172 ◽  
Author(s):  
E.O. Fedorovskaya ◽  
L.G. Bulusheva ◽  
A.G. Kurenya ◽  
I.P. Asanov ◽  
N.A. Rudina ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwall Carbon Nanotubes ◽  
Supercapacitor Performance ◽  
Vertically Aligned ◽  
Multiwall Carbon

scholarly journals AC Susceptibility Studies under DC Fields in Superspinglass Nanomaghemite-Multiwall Carbon Nanotube Hybrid

2021 ◽  
Vol 7 (4) ◽  
pp. 52
Author(s):  
Juan A. Ramos-Guivar ◽  
F. Jochen Litterst ◽  
Edson C. Passamani
Keyword(s):  
Carbon Nanotubes ◽  
Ac Susceptibility ◽  
Multiwall Carbon Nanotubes ◽  
Blocking Temperature ◽  
Multiwall Carbon Nanotube ◽  
Fe2o3 Nanoparticles ◽  
Different Temperatures ◽  
Fe2o3 Nanoparticle ◽  
Average Size ◽  
Multiwall Carbon

Magnetic properties of maghemite (γ-Fe2O3) nanoparticles grown on activated multiwall carbon nanotubes have been studied by alternating current (AC) magnetic susceptibility experiments performed under different temperatures, frequencies, and applied magnetic fields. Transmission electron images have suggested that the γ-Fe2O3 nanoparticles are not isolated and have an average size of 9 nm, but with a relatively broad size distribution. The activation energies of these 9 nm γ-Fe2O3 nanoparticles, determined from the generalized Vogel–Fulcher relation, are reduced upon increasing the direct current (DC) field magnitude. The large activation energy values have indicated the formation of a superspinglass state in the γ-Fe2O3 nanoparticle ensemble, which were not observed for pure γ-Fe2O3 nanoparticles, concluding that the multiwall carbon nanotubes favored the appearance of highly concentrated magnetic regions and hence the formation of superspinglass state. Magnetic relaxation studies, using Argand diagrams recorded for DC probe fields (<20 kOe) below the magnetic blocking temperature at 100 and 10 K, have revealed the presence of more than one relaxation process. The behavior of the ensemble of γ-Fe2O3 nanoparticles can be related to the superspinglass state and is also supported by Almeida–Thouless plots.

High Capacity and Excellent Stability of Lithium Ion Battery Anode Using Interface-Controlled Binder-Free Multiwall Carbon Nanotubes Grown on Copper

ACS Nano ◽  
2010 ◽  
Vol 4 (6) ◽  
pp. 3440-3446 ◽  
Author(s):  
Indranil Lahiri ◽  
Sung-Woo Oh ◽  
Jun Y. Hwang ◽  
Sungjin Cho ◽  
Yang-Kook Sun ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Lithium Ion Battery ◽  
High Capacity ◽  
Multiwall Carbon Nanotubes ◽  
Lithium Ion ◽  
Binder Free ◽  
Multiwall Carbon ◽  
Battery Anode ◽  
Excellent Stability

Boehmite Nanofibers as a Dispersant for Nanotubes in an Aqueous Sol

2018 ◽  
Author(s):  
Gen Hayase
Keyword(s):  
Carbon Nanotubes ◽  
Aspect Ratio ◽  
Aqueous Solutions ◽  
High Aspect Ratio ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon ◽  
Nanotube Films

By exploiting the dispersibility and rigidity of boehmite nanofibers (BNFs) with a high aspect ratio of 4 nm in diameter and several micrometers in length, multiwall-carbon nanotubes (MWCNTs) were successfully dispersed in aqueous solutions. In these sols, the MWCNTs were dispersed at a ratio of about 5–8% relative to BNFs. Self-standing BNF–nanotube films were also obtained by filtering these dispersions and showing their functionality. These films can be expected to be applied to sensing materials.

scholarly journals Comparative study of using Water-Based mud containing Multiwall Carbon Nanotubes versus Oil-Based mud in HPHT fields

2016 ◽  
Vol 25 (4) ◽  
pp. 459-464 ◽  
Author(s):  
M.I. Abduo ◽  
A.S. Dahab ◽  
Hesham Abuseda ◽  
Abdulaziz M. AbdulAziz ◽  
M.S. Elhossieny
Keyword(s):  
Carbon Nanotubes ◽  
Comparative Study ◽  
Multiwall Carbon Nanotubes ◽  
Water Based ◽  
Multiwall Carbon
Sign in / Sign up

Export Citation Format

Share Document