Use of High-Purity Metal-Catalyst-Free Multiwalled Carbon Nanotubes To Avoid Potential Experimental Misinterpretations

Langmuir ◽  
2007 ◽  
Vol 23 (18) ◽  
pp. 9501-9504 ◽  
Author(s):  
Craig P. Jones ◽  
Kerstin Jurkschat ◽  
Alison Crossley ◽  
Richard G. Compton ◽  
Bill Logan Riehl ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
High Purity ◽  
Metal Catalyst ◽  
Multiwalled Carbon ◽  
High Purity Metal ◽  
Catalyst Free

Simple Metal-catalyst-free Production of Carbon Nanostructures

2013 ◽  
Vol 66 (11) ◽  
pp. 1435 ◽  
Author(s):  
Thomas K. Ellis ◽  
Christian Paras ◽  
Matthew R. Hill ◽  
John A. Stride
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Carbon Nanostructures ◽  
Chemical Reduction ◽  
Ambient Pressure ◽  
Chemical Degradation ◽  
Metal Catalyst ◽  
Metallic Sodium ◽  
Multiwalled Carbon ◽  
Catalyst Free

We report the metal-catalyst-free production of multiwalled carbon nanotubes and nanobubbles, in a chemical reduction of hexachlorobenzene by metallic sodium, giving high yields (in excess of 80 %) and at temperatures as low as 190°C for multiwalled carbon nanotubes and 100°C for nanobubble formation. The carbon nanotube samples produced under solvothermal conditions were found to consist of large bundles of nanotubes (>50 µm) consistent with a facial growth from the surface of the molten metal. Meanwhile, the nanobubbles produced under ambient pressure were found to be small (≤1 µm), polydispersed (smallest ~50 nm), and the bulk to have a large microporous area. With the regulatory complexities and high environmental and economic costs of remediating waste containing highly hazardous halogenated aromatic chemicals, necessitating high-temperature incineration under strictly controlled conditions, this low-temperature, low-cost chemical degradation of hexachlorobenzene is of great potential as a scalable and workable remediation technology.

Metal-catalyst-free access to multiwalled carbon nanotubes/silica nanocomposites (MWCNT/SiO2) from a single-source precursor

2019 ◽  
Vol 48 (29) ◽  
pp. 11018-11033 ◽  
Author(s):  
Gabriela Mera ◽  
Peter Kroll ◽  
Ilia Ponomarev ◽  
Jiewei Chen ◽  
Koji Morita ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Silica Matrix ◽  
Metal Catalyst ◽  
Free Access ◽  
Single Source ◽  
Simple Metal ◽  
Multiwalled Carbon ◽  
Silica Nanocomposites ◽  
Catalyst Free ◽  
Single Source Precursor

Bamboo-like MWCNTs in a mesoporous silica matrix are synthesized by a simple metal-catalyst-free single-source precursor approach.

High purity multiwalled carbon nanotubes under high pressure and high temperature

Carbon ◽  
2003 ◽  
Vol 41 (12) ◽  
pp. 2361-2367 ◽  
Author(s):  
M. Corrias ◽  
Ph. Serp ◽  
Ph. Kalck ◽  
G. Dechambre ◽  
J.L. Lacout ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
High Pressure ◽  
High Temperature ◽  
Multiwalled Carbon Nanotubes ◽  
High Purity ◽  
Multiwalled Carbon

Postsynthesis microwave treatment to give high-purity multiwalled carbon nanotubes

AIChE Journal ◽  
2008 ◽  
Vol 54 (12) ◽  
pp. 3303-3307 ◽  
Author(s):  
Jun Liu ◽  
Oscar M. Dunens ◽  
Kieran J. Mackenzie ◽  
Chee Howe See ◽  
Andrew T. Harris
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
High Purity ◽  
Microwave Treatment ◽  
Multiwalled Carbon
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