Adsorption kinetics of methanol in carbon nanotubes revisited - solvent effects and pitfalls in ultra-high vacuum surface science experiments

M. Komarneni; A. Sand; J. Goering; U. Burghaus

doi:10.1016/j.cplett.2009.03.057

Adsorption kinetics of methanol in carbon nanotubes revisited - solvent effects and pitfalls in ultra-high vacuum surface science experiments

M. Komarneni, A. Sand, J. Goering, U. Burghaus

Chemistry (Twin Cities)

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Thermal desorption spectroscopy (TDS) allows for distinguishing among internal, external, and groove adsorption sites on carbon nanotubes (CNTs). Thus, TDS can be applied to study the effect of CNTs' crystal structure on adsorption kinetics. On clean CNTs, the binding energy for methanol increases with increasing CNT diameter, consistent with theoretical predictions. However, kinetics results can be obscured by rather subtle solvent (impurity) effects which are probe molecule specific.

Original language	English (US)
Pages (from-to)	131-134
Number of pages	4
Journal	Chemical Physics Letters
Volume	473
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2009.03.057
State	Published - Apr 29 2009

Bibliographical note

Funding Information:
We thank Ya-Ping Sun (Clemson University) for providing the m-CNT powder. Financial support from the Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, Office of Science, US Department of Energy is acknowledged by NDSU (DE-FG02-08ER15987).

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abstract = "Thermal desorption spectroscopy (TDS) allows for distinguishing among internal, external, and groove adsorption sites on carbon nanotubes (CNTs). Thus, TDS can be applied to study the effect of CNTs' crystal structure on adsorption kinetics. On clean CNTs, the binding energy for methanol increases with increasing CNT diameter, consistent with theoretical predictions. However, kinetics results can be obscured by rather subtle solvent (impurity) effects which are probe molecule specific.",

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AU - Sand, A.

AU - Goering, J.

AU - Burghaus, U.

N1 - Funding Information: We thank Ya-Ping Sun (Clemson University) for providing the m-CNT powder. Financial support from the Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, Office of Science, US Department of Energy is acknowledged by NDSU (DE-FG02-08ER15987).

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N2 - Thermal desorption spectroscopy (TDS) allows for distinguishing among internal, external, and groove adsorption sites on carbon nanotubes (CNTs). Thus, TDS can be applied to study the effect of CNTs' crystal structure on adsorption kinetics. On clean CNTs, the binding energy for methanol increases with increasing CNT diameter, consistent with theoretical predictions. However, kinetics results can be obscured by rather subtle solvent (impurity) effects which are probe molecule specific.

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Adsorption kinetics of methanol in carbon nanotubes revisited - solvent effects and pitfalls in ultra-high vacuum surface science experiments

Abstract

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