Use of High-Purity Metal-Catalyst-Free Multiwalled Carbon Nanotubes To Avoid Potential Experimental Misinterpretations
Authors:
- 26 July 2007
- journal article
- research article
- Published by American Chemical Society (ACS) in Langmuir
- Vol. 23 (18) , 9501-9504
Abstract
Carbon nanotubes, even after extensive posttreatment, contain metallic impurities which may produce misleading results, giving rise to false claims of the properties of carbon nanotubes. To overcome this, we report on high-purity catalyst-free multiwalled carbon nanotubes which have been explored with transmission electron microscopy, X-ray photoelectron spectroscopy, and cyclic voltammetry using the electrochemical oxidations of hydrazine and potassium ferrocyanide. The multiwalled carbon nanotubes are approximately 150 nm in length and consist of 6−10 graphite layers. Due to the definitive absence of metallic impurities, experimentalists using these carbon nanotubes can avoid potential misinterpretations of their results.Keywords
This publication has 14 references indexed in Scilit:
- Co-synthesis, purification and characterization of single- and multi-walled carbon nanotubes using the electric arc methodCarbon, 2007
- Optical Detection of DNA Conformational Polymorphism on Single-Walled Carbon NanotubesScience, 2006
- Single‐Wall Carbon Nanotubes as Integrative Building Blocks for Solar‐Energy ConversionAngewandte Chemie International Edition, 2005
- Evidence for Deep Magma Injection Beneath Lake Tahoe, Nevada-CaliforniaScience, 2004
- Aligned Multiwalled Carbon Nanotube MembranesScience, 2004
- Carbon Nanotubes--the Route Toward ApplicationsScience, 2002
- Hydrogen storage capacity of carbon nanotubes, filaments, and vapor-grown fibersCarbon, 2001
- Hydrogen storage in sonicated carbon materialsApplied Physics A, 2001
- Storage of hydrogen in single-walled carbon nanotubesNature, 1997
- The study of carbon nanotubules produced by catalytic methodChemical Physics Letters, 1994