Optimisation of the arc-discharge production of multi-walled carbon nanotubes

Autor:	Bernd Lahr, B. McCarthy, Jonathan N. Coleman, Martin Cadek, M. in het Panhuis, Robert Murphy, Werner J. Blau, R.C. Barklie, Anna Drury
Rok vydání:	2002
Předmět:	Thermogravimetric analysis Yield (engineering) Analytical chemistry chemistry.chemical_element General Chemistry Carbon nanotube medicine.disease_cause Soot law.invention Electric arc chemistry law Torr medicine General Materials Science Current density Carbon
Zdroj:	Carbon. 40:923-928
ISSN:	0008-6223
DOI:	10.1016/s0008-6223(01)00221-4
Popis:	The effect of varying current density and pressure during arc generation on the yield and purity of multi-walled nanotube-containing carbon soot has been studied in this work. Various soots were produced and characterised qualitatively using transmission electron microscopy and quantitatively using electron paramagnetic resonance and thermogravimetric analysis. It was found that both yield and purity increase as current density and pressure are increased to the limit of our experimental investigations, i.e. 195 A/cm 2 and 500 Torr of helium. Under these conditions a yield of 24 mg/min soot containing 48% by mass nanotubes was obtained.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::30ba4cda9ed66968e2e8241ebbe9066e https://doi.org/10.1016/s0008-6223(01)00221-4 Zobrazit plný text záznamu Full Text from ScienceDirect