2:00 PM–3:30 PM, Friday, October 19, 2007
Rudder Tower - 601
Chair: Joseph Ross and Roland Allen, Texas A&M University
Abstract ID: BAPS.2007.TSF.E1.1
2:00 PM–2:45 PM
Oscar Vilches
(University of Washington)
Carbon nanotube bundles are formed by mostly parallel arrays of single-wall, closed-end carbon nanotubes of about one nanometer diameter and micrometer length, each bundle having from about 30 to over a hundred nanotubes. The nanotubes in the bundles are not of uniform diameter, which leads to bundles not being perfect stacks of nanotubes. On these bundles, one-, two-, and three-dimensional forms of matter can be formed by physisorption. In this presentation I will give a brief introduction to the changes in the solid-liquid-vapor phase diagram of simple substances brought in by dimensionality, followed by introducing carbon nanotube bundles and physisorption. I will use results from current measurements of adsorption isotherms, heat capacity, and neutron diffraction to illustrate to what extent theoretical expectations and experimental results agree (and disagree). I will conclude this presentation with comments on future experiments using a single carbon nanotube as a physisorption substrate. The work described is being carried out in collaboration with David Cobden, Subramanian Ramachandran, and Zenghui Wang.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2007.TSF.E1.1