Dispersion and field emission properties of multi-walled carbon nanotubes by high-energy milling
Multi-walled carbon nanotubes (MWNTs) were high-energy milled for 2 h in texanol after a polycarboxylic acid polymeric dispersant had been added in order to enhance the dispersion. The degree of MWNT dispersion was significantly enhanced by high-energy milling compared to the intact sample, which in...
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| Veröffentlicht in: | Materials chemistry and physics 2008-08, Vol.110 (2), p.363-369 |
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| container_title | Materials chemistry and physics |
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| creator | Darsono, Nono Yonathan, Parlindungan Yoon, Dang-Hyok Kim, Jaemyung Kim, Yoonjin |
| description | Multi-walled carbon nanotubes (MWNTs) were high-energy milled for 2
h in texanol after a polycarboxylic acid polymeric dispersant had been added in order to enhance the dispersion. The degree of MWNT dispersion was significantly enhanced by high-energy milling compared to the intact sample, which increased the density of surface-exposed MWNTs with a screen-printed paste. However, the emission properties of high-energy milled MWNTs did not show such a high emission current density relative to their increased surface-exposed density. Further investigation using Raman spectroscopy and X-ray diffraction evidenced the milling-induced MWNT damage, which explained the relatively lower emission current density of high-energy milled MWNTs. |
| doi_str_mv | 10.1016/j.matchemphys.2008.02.016 |
| format | Article |
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| ispartof | Materials chemistry and physics, 2008-08, Vol.110 (2), p.363-369 |
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| subjects | Field emission Nanostructuress Raman spectroscopy and scattering |
| title | Dispersion and field emission properties of multi-walled carbon nanotubes by high-energy milling |
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