Nanosized Carbon Black Combined with Ni2O3 as “Universal” Catalysts for Synergistically Catalyzing Carbonization of Polyolefin Wastes to Synthesize Carbon Nanotubes and Application for Supercapacitors

2014 ◽  
Vol 48 (7) ◽  
pp. 4048-4055 ◽  
Author(s):  
Xin Wen ◽  
Xuecheng Chen ◽  
Nana Tian ◽  
Jiang Gong ◽  
Jie Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Black ◽  
Catalyzing Carbonization

scholarly journals sp2 Carbon Stable Radicals

2021 ◽  
Vol 7 (2) ◽  
pp. 31
Author(s):  
Elena F. Sheka
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Black ◽  
Intermolecular Interaction ◽  
Open Shell ◽  
Size And Shape ◽  
Spatially Extended ◽  
Stable Radicals ◽  
The Stability ◽  
Shungite Carbon ◽  
Technological Products

sp2 Nanocarbons such as fullerenes, carbon nanotubes, and graphene molecules are not only open-shell species, but spatially extended, due to which their chemistry is quite specific. Cogently revealed dependence of the final products composition on size and shape of the carbons in use as well as on the chemical prehistory is accumulated in a particular property—the stabilization of the species’ radical efficiency, thus providing the matter of stable radicals. If the feature is highly restricted and rarely available in ordinary chemistry, in the case of sp2 nanocarbons it is just an ordinary event providing, say, tons-in-mass stable radicals when either producing such widely used technological products as carbon black or dealing with deposits of natural sp2 carbons such as anthracite, shungite carbon, and other. Suggested in the paper is the consideration of stable radicals of sp2 nanocarbons from the standpoint of spin-delocalized topochemistry. Characterized in terms of the total and atomically partitioned number of effectively unpaired electrons as well as of the distribution of the latter over carbon atoms and described by selectively determined barriers of different reactions exhibiting topological essence of intermolecular interaction, sp2 nanocarbons reveal a peculiar topokinetics that lays the foundation of the stability of their radical properties.

Polyol Synthesis of Lithium Iron Phosphate with Carbon Nanotubes: Effect of Dispersion on Crystallinity and Electrochemical Performance

2014 ◽  
Vol 1678 ◽  
Author(s):  
Wesley D. Tennyson
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Black ◽  
Lithium Iron Phosphate ◽  
Iron Phosphate ◽  
Polyol Synthesis ◽  
Battery Life ◽  
Unique Challenge ◽  
Weight Percentage ◽  
Conductive Additive ◽  
Power Capability

ABSTRACTCarbon nanotubes (CNTs) have been shown to be a viable conductive additive in Li-Ion batteries [1]. By using CNTs battery life, energy, and power capability can all be improved over carbon black, the traditional conductive additive. A significantly smaller weight percentage (5% CNTs) is needed to get the same conductivity as 20% carbon black. Many of the previous efforts found that a combination of conductive additives was most advantageous [2]. Unfortunately many of these efforts did not attend to the unique challenge that dispersing nanotubes presents and used non-optimal methods to disperse CNTs (e.g. ball milling) [3,4]. With poor dispersion a stable and resilient conductive network in the cathode is hard to form with CNTs alone. Here we investigate the formation of LiFePO₄ with CNTs using a polyol process synthesis.

Double-walled carbon nanotubes synthesized using carbon black as the dot carbon source

2006 ◽  
Vol 17 (13) ◽  
pp. 3100-3104 ◽  
Author(s):  
Zhi-Gang Chen ◽  
Feng Li ◽  
Wen-Cai Ren ◽  
Hongtao Cong ◽  
Chang Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Source ◽  
Carbon Black ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Multifunctional Superhydrophobic Polymer/Carbon Nanocomposites: Graphene, Carbon Nanotubes, or Carbon Black?

2014 ◽  
Vol 6 (11) ◽  
pp. 8859-8867 ◽  
Author(s):  
Ashish Asthana ◽  
Tanmoy Maitra ◽  
Robert Büchel ◽  
Manish K. Tiwari ◽  
Dimos Poulikakos
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Black ◽  
Carbon Nanocomposites

Mechanism growth of multiwalled carbon nanotubes on carbon black

2008 ◽  
Vol 17 (7-10) ◽  
pp. 1506-1512 ◽  
Author(s):  
Jean Bapstiste Donnet ◽  
Hanae Oulanti ◽  
Thang Le Huu
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Black ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon

Catalytic Transformation of Carbon Black to Carbon Nanotubes

2002 ◽  
Vol 14 (11) ◽  
pp. 4498-4501 ◽  
Author(s):  
Stanislav Kishinevsky ◽  
Sergey I. Nikitenko ◽  
David M. Pickup ◽  
Ernst R. H. van-Eck ◽  
Aharon Gedanken
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Black ◽  
Catalytic Transformation

scholarly journals Electromagnetic Interference Shielding Efficiency in the Range 8.2-12.4 GHz of Polymer Composites with Dispersed Carbon Nanoparticles

2011 ◽  
Vol 14 (1) ◽  
pp. 55 ◽  
Author(s):  
Anna V. Gubarevich ◽  
Kazuki Komoriya ◽  
Osamu Odawara
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Black ◽  
Polymer Composites ◽  
Electromagnetic Interference ◽  
Carbon Nanoparticles ◽  
Hot Press ◽  
Frequency Range ◽  
Electromagnetic Interference Shielding ◽  
X Band ◽  
Graphite Nanoparticles

In the present work, electromagnetic interference shielding properties of polymer composites with dispersed cup-stacked carbon nanotubes, graphite nanoparticles and carbon black were investigated. The polymer composites with carbon nanoparticles content from 1 to 5 w% were successfully prepared by the coagulation method, and composite sheets with thickness from 0.25 to 0.77 mm were formed by the hot press technique. The electromagnetic interference shielding efficiency measured in the frequency range of 8.2~12.4 GHz (X-band) of cup-stacked carbon nanotubes/polymer composite was considerably higher than that of carbon black and graphite nanoparticles polymer composites at the same contents of carbon nanoparticles, and contribution of absorption to the shielding efficiency was found to be higher than that of reflection.

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