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  Desorption kinetics and interaction of Xe with single-wall carbon nanotube bundles

Ulbricht, H., Kriebel, J., Moos, G., & Hertel, T. (2002). Desorption kinetics and interaction of Xe with single-wall carbon nanotube bundles. Chemical Physics Letters, 363(3-4), 252-260. doi:10.1016/S0009-2614(02)01175-2.

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 Creators:
Ulbricht, Hendrik1, Author           
Kriebel, Jennah2, Author
Moos, Gunnar1, Author           
Hertel, Tobias1, Author           
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              
2Max Planck Society, ou_persistent13              

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Free keywords: KeyWords Plus: TEMPERATURE-PROGRAMMED DESORPTION; THEORETICAL EQUATION; ADSORPTION; XENON; GRAPHITE; SPECTROSCOPY; READSORPTION; AMMONIA; PHASES; ORDER
 Abstract: We present a study on the kinetics of xenon desorption from single-wall carbon nanotube (SWNT) bundles using thermal desorption spectroscopy (TDS). Desorption features from SWNT samples are broadened and peaked at higher temperature if compared to graphite. This can be explained using a coupled desorption-diffusion (CDD) model, which yields the low-coverage binding energy for Xe adsorption on SWNT bundles, 27 kJ mol(-1). The latter is about 25% higher than the monolayer binding energy on graphite, 21.9 kJ mol(-1). Using molecular mechanics calculations we find that this increase is consistent with adsorption in highly coordinated groove-sites on the external bundle surface or in endohedral sites inside of SWNTs.

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Language(s): eng - English
 Dates: 2002-09-09
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 9909
DOI: 10.1016/S0009-2614(02)01175-2
 Degree: -

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Title: Chemical Physics Letters
  Alternative Title : Chem. Phys. Lett.
Source Genre: Journal
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Pages: - Volume / Issue: 363 (3-4) Sequence Number: - Start / End Page: 252 - 260 Identifier: -