High yield non destructive purification of single wall carbon nanotubes monitored by EPR measurements

被引：6

作者：

Capes, L ^{[1
]}

Valentin, E ^{[1
]}

Esnouf, S ^{[1
]}

Ribayrol, A ^{[1
]}

Jost, O ^{[1
]}

Filoramo, A ^{[1
]}

Patillon, JN ^{[1
]}

机构：

[1] Ctr Rech Motorola Paris, Molorola Labs, Espace Technol St Aubin, F-91193 Gif Sur Yvette, France

来源：

PROCEEDINGS OF THE 2002 2ND IEEE CONFERENCE ON NANOTECHNOLOGY | 2002年

关键词：

D O I：

10.1109/NANO.2002.1032284

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

A chemical purification method has been developed which leads to highly pure and little damaged single wall nanotubes (SWNT) with a 55 to 65 % overall yield. It combines a short and soft acid reflux with a hydrogen peroxide reflux. Electron Paramagnetic Resonance (EPR) measurements have been used to assess the residual amount of both catalyst and amorphous carbon. By this method, the acid treatment duration was minimized to 4 h, preserving the SWNT structure. EPR indicates a decrease of amorphous carbon content by up to a factor 3 with a 90 minutes peroxide treatment. As-purified SWNTs allow us to generate nanoscale electronic devices via self-assembling.

引用

页码：439 / 442

页数：4

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