Abstract
Nearly complete removal of zeolite particles and Fe/Co catalysts from raw single-walled carbon nanotubes (SWNTs) produced by chemical vapor deposition was achieved by oxidation of raw material at 240°C or 340°C and treatment with 1% aqueous solution of hydrofluoric acid. The yields of SWNTs were estimated to be ≈95% and the purities of SWNTs thus obtained were more than 95%, as characterized by thermo-gravimetric analysis. Raman spectra of the purified SWNTs were essentially identical with those of the corresponding raw samples. The raw and purified SWNTs were also characterized by EDX spectroscopy and transmission electron microscopy.
| Original language | English |
|---|---|
| Pages (from-to) | 529-532 |
| Number of pages | 4 |
| Journal | Chemical Physics Letters |
| Volume | 392 |
| Issue number | 4-6 |
| DOIs | |
| Publication status | Published - Jul 11 2004 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
Cite this
Purification and characterization of zeolite-supported single-walled carbon nanotubes catalytically synthesized from ethanol. / Igarashi, Hideyuki; Murakami, Hiroto; Murakami, Yoichi; Maruyama, Shigeo; Nakashima, Naotoshi.
In: Chemical Physics Letters, Vol. 392, No. 4-6, 11.07.2004, p. 529-532.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Purification and characterization of zeolite-supported single-walled carbon nanotubes catalytically synthesized from ethanol
AU - Igarashi, Hideyuki
AU - Murakami, Hiroto
AU - Murakami, Yoichi
AU - Maruyama, Shigeo
AU - Nakashima, Naotoshi
PY - 2004/7/11
Y1 - 2004/7/11
N2 - Nearly complete removal of zeolite particles and Fe/Co catalysts from raw single-walled carbon nanotubes (SWNTs) produced by chemical vapor deposition was achieved by oxidation of raw material at 240°C or 340°C and treatment with 1% aqueous solution of hydrofluoric acid. The yields of SWNTs were estimated to be ≈95% and the purities of SWNTs thus obtained were more than 95%, as characterized by thermo-gravimetric analysis. Raman spectra of the purified SWNTs were essentially identical with those of the corresponding raw samples. The raw and purified SWNTs were also characterized by EDX spectroscopy and transmission electron microscopy.
AB - Nearly complete removal of zeolite particles and Fe/Co catalysts from raw single-walled carbon nanotubes (SWNTs) produced by chemical vapor deposition was achieved by oxidation of raw material at 240°C or 340°C and treatment with 1% aqueous solution of hydrofluoric acid. The yields of SWNTs were estimated to be ≈95% and the purities of SWNTs thus obtained were more than 95%, as characterized by thermo-gravimetric analysis. Raman spectra of the purified SWNTs were essentially identical with those of the corresponding raw samples. The raw and purified SWNTs were also characterized by EDX spectroscopy and transmission electron microscopy.
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UR - http://www.scopus.com/inward/citedby.url?scp=3042581959&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2004.05.104
DO - 10.1016/j.cplett.2004.05.104
M3 - Article
VL - 392
SP - 529
EP - 532
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 4-6
ER -