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Chae, Han Gi
Polymer nano-composites and Carbon Fiber Laboratory (P&C Lab)
Research Interests
  • Polymer Physics/ Processing, Carbon Nano-materials, Ultra high performance/ multifuctional nano-composites, Smart textile/ fiber

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Sponge behaviors of functionalized few-walled carbon nanotubes

Cited 2 times inthomson ciCited 3 times inthomson ci
Title
Sponge behaviors of functionalized few-walled carbon nanotubes
Author
Jeon, In-YupIl Choi, JiLee, Seung GeolChae, Han GiJang, Seung SoonKumar, SatishBaek, Jong-Beom
Keywords
Bound waters; Carbon atoms; Electrochemical behaviors; Few-walled carbon nanotubes; Functionalized; Hydration energies; Molecular simulations; Phosphorus pentoxide; Poly (phosphoric acid)
Issue Date
2010-09
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF PHYSICAL CHEMISTRY C, v.114, no.35, pp.14868 - 14875
Abstract
Few-walled carbon nanotube (FWCNT) was functionalized with two different natures of functional groups in a mild poly(phosphoric acid) (PPA)/phosphorus pentoxide (P(2)O(5)). The one is less polar 4-ethylbenzoyl-functionalized FWCNT (EB-FWCNT) and the other is more polar 4-(aminomethyl)benzoyl-functionalized FWCNT (AB-FWCNT). The degrees of their functionalities were estimated by thermogravimetric analysis (TGA) and they had one functional group per average 17.7 and 25.3 carbon atoms, respectively. Contrary to expectation, the amount of bound water in the EB-FWCNT was 96.6 wt % and it is higher than that for AB-FWCNT (82.3 wt %). The unusual sponge behavior of EB-FWCNT is attributed to higher hydration energy as determined based on molecular simulation studies. The electrochemical behaviors are also greatly different between the EB- and AB-FWCNT.
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DOI
10.1021/jp105918a
ISSN
1932-7447
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MSE_Journal Papers
ECHE_Journal Papers
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