Separation of Double-Walled Carbon Nanotubes by Size Exclusion Column Chromatography

Katherine Moore; Moritz Pfohl; Frank Hennrich; Venkata Sai Chakradhanula; Christian Kuebel; Manfred Kappes; Joseph Shapter; Ralph Krupke; Benjamin Flavel

doi:10.1021/nn500756a

Separation of Double-Walled Carbon Nanotubes by Size Exclusion Column Chromatography

Katherine Moore, Moritz Pfohl, Frank Hennrich, Venkata Sai Chakradhanula, Christian Kuebel, Manfred Kappes, Joseph Shapter, Ralph Krupke, Benjamin Flavel

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

In this report we demonstrate the separation of raw carbon nanotube material into fractions of double-walled (DWCNTs) and single-walled carbon nanotubes (SWCNTs). Our method utilizes size exclusion chromatography with Sephacryl gel S-200 and yielded two distinct fractions of single- and double-walled nanotubes with average diameters of 0.93 ± 0.03 and 1.64 ± 0.15 nm, respectively. The presented technique is easily scalable and offers an alternative to traditional density gradient ultracentrifugation methods. CNT fractions were characterized by atomic force microscopy and Raman and absorption spectroscopy as well as transmission electron microscopy.

Original language	English
Pages (from-to)	6756-6764
Number of pages	9
Journal	ACS Nano
Volume	8
Issue number	7
DOIs	https://doi.org/10.1021/nn500756a
Publication status	Published - 22 Jul 2014

Keywords

carbon nanotube
double
purification
separation
Sephacryl gel
sorting

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10.1021/nn500756a

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abstract = "In this report we demonstrate the separation of raw carbon nanotube material into fractions of double-walled (DWCNTs) and single-walled carbon nanotubes (SWCNTs). Our method utilizes size exclusion chromatography with Sephacryl gel S-200 and yielded two distinct fractions of single- and double-walled nanotubes with average diameters of 0.93 ± 0.03 and 1.64 ± 0.15 nm, respectively. The presented technique is easily scalable and offers an alternative to traditional density gradient ultracentrifugation methods. CNT fractions were characterized by atomic force microscopy and Raman and absorption spectroscopy as well as transmission electron microscopy.",

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AU - Moore, Katherine

AU - Pfohl, Moritz

AU - Hennrich, Frank

AU - Chakradhanula, Venkata Sai

AU - Kuebel, Christian

AU - Kappes, Manfred

AU - Shapter, Joseph

AU - Krupke, Ralph

AU - Flavel, Benjamin

PY - 2014/7/22

Y1 - 2014/7/22

N2 - In this report we demonstrate the separation of raw carbon nanotube material into fractions of double-walled (DWCNTs) and single-walled carbon nanotubes (SWCNTs). Our method utilizes size exclusion chromatography with Sephacryl gel S-200 and yielded two distinct fractions of single- and double-walled nanotubes with average diameters of 0.93 ± 0.03 and 1.64 ± 0.15 nm, respectively. The presented technique is easily scalable and offers an alternative to traditional density gradient ultracentrifugation methods. CNT fractions were characterized by atomic force microscopy and Raman and absorption spectroscopy as well as transmission electron microscopy.

AB - In this report we demonstrate the separation of raw carbon nanotube material into fractions of double-walled (DWCNTs) and single-walled carbon nanotubes (SWCNTs). Our method utilizes size exclusion chromatography with Sephacryl gel S-200 and yielded two distinct fractions of single- and double-walled nanotubes with average diameters of 0.93 ± 0.03 and 1.64 ± 0.15 nm, respectively. The presented technique is easily scalable and offers an alternative to traditional density gradient ultracentrifugation methods. CNT fractions were characterized by atomic force microscopy and Raman and absorption spectroscopy as well as transmission electron microscopy.

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KW - purification

KW - separation

KW - Sephacryl gel

KW - sorting

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JO - ACS Nano

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Separation of Double-Walled Carbon Nanotubes by Size Exclusion Column Chromatography

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Keywords

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