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Title: High-resolution {sup 13}C nuclear magnetic resonance evidence of phase transition of Rb,Cs-intercalated single-walled nanotubes

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.3631052· OSTI ID:22036715
;  [1];  [2];  [3];  [1]
  1. KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology, Thuwal (Saudi Arabia)
  2. Department of Physics, Umeaa University, 901 87 Umeaa (Sweden)
  3. LCVN, Universite Montpellier II, Place E. Bataillon, 34095 Montpellier (France)

We present 13 C high-resolution magic-angle-turning (MAT) and magic angle spinning nuclear magnetic resonance data of Cs and Rb intercalated single walled carbon nanotubes. We find two distinct phases at different intercalation levels. A simple charge transfer is applicable at low intercalation level. The new phase at high intercalation level is accompanied by a hybridization of alkali (s) orbitals with the carbon (sp2) orbitals of the single walled nanotubes, which indicate bundle surface sites is the most probable alkali site.

OSTI ID:
22036715
Journal Information:
Journal of Applied Physics, Vol. 110, Issue 5; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
Country of Publication:
United States
Language:
English