Is there a Difference in Van Der Waals Interactions between Rare Gas Atoms Adsorbed on Metallic and Semiconducting Single-Walled Carbon Nanotubes?

Journal Article · Fri Mar 01 00:00:00 EST 2013 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.110.135503· OSTI ID:1127347

Chen, De-Li ^[1]; Mandeltort, Lynn ^[2]; Saidi, Wissam A. ^[1]; Yates, John T. ^[2]; Cole, Milton W. ^[3]; Johnson, J. Karl ^[4]

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1. Univ. of Pittsburgh, PA (United States). Dept. of Chemical and Petroleum Engineering
2. Univ. of Virginia, Charlottesville, VA (United States). Dept. of Chemistry
3. Pennsylvania State Univ., University Park, PA (United States). Dept of Physics
4. Univ. of Pittsburgh, PA (United States). Dept. of Chemical and Petroleum Engineering; National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)

Differences in polarizabilities of metallic (M) and semiconducting (S) single-walled carbon nanotubes (SWNTs) might give rise to differences in adsorption potentials. We show from experiments and van der Waals-corrected density functional theory (DFT) that binding energies of Xe adsorbed on M- and S-SWNTs are nearly identical. Temperature programmed desorption of Xe on purified M- and S-SWNTs give similar peak temperatures, indicating that desorption kinetics and binding energies are independent of the type of SWNT. Binding energies computed from vdW-corrected DFT are in good agreement with experiments.

• Research Organization: National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States). In-house Research
• Sponsoring Organization: USDOE Office of Fossil Energy (FE)
• DOE Contract Number: FE0004000
• OSTI ID: 1127347
• Report Number(s): A-UNIV-PUB-014; PRLTAO
• Journal Information: Physical Review Letters, Vol. 110, Issue 13; ISSN 0031-9007
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY