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Catalytic mechanism of a Fe–Co bimetallic system for efficient growth of single-walled carbon nanotubes on substrates
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10.1063/1.2364448
/content/aip/journal/jap/100/9/10.1063/1.2364448
http://aip.metastore.ingenta.com/content/aip/journal/jap/100/9/10.1063/1.2364448
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

CVD growth process and three stages to be focused: (1) before heating, (2) just before growth of nanotube, and (3) after growth of nanotube.

Image of FIG. 2.
FIG. 2.

Cross-sectional TEM images of the substrate top layer observed when only Co catalyst was used: (a) stage 1 and (b) stage 2.

Image of FIG. 3.
FIG. 3.

SAED pattern observed at stage 2 when only Co catalyst was used.

Image of FIG. 4.
FIG. 4.

TEM plan view (a) and size distribution of residual particles (b) observed at stage 3 when only Co catalyst was used.

Image of FIG. 5.
FIG. 5.

TEM plan view at the edge of thin substrate.

Image of FIG. 6.
FIG. 6.

Raman spectra for RBM (a) and and bands of SWCNT (b). Here, only Co catalyst was used for growth.

Image of FIG. 7.
FIG. 7.

Cross-sectional TEM images of substrate top layer at stage 2: (a) for Fe catalyst only and (b) for Fe–Co catalyst mixture.

Image of FIG. 8.
FIG. 8.

TEM plan view (a) and size distribution of residual particles (b) observed at stage 3 when Fe–Co catalyst mixture was used.

Image of FIG. 9.
FIG. 9.

Reaction model between catalyst and substrate for (a) Co only, (b) Fe only, and (c) Fe–Co mixture.

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/content/aip/journal/jap/100/9/10.1063/1.2364448
2006-11-01
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Catalytic mechanism of a Fe–Co bimetallic system for efficient growth of single-walled carbon nanotubes on Si∕SiO2 substrates
http://aip.metastore.ingenta.com/content/aip/journal/jap/100/9/10.1063/1.2364448
10.1063/1.2364448
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