Theory of Gas Adsorption in Carbon Nanostructures
Abstract
This report is a brief summary of the results of studies conducted by faculty, students, and postdoctoral fellows at Pennsylvania State University (Department of Physics) and the University of Pittsburgh (Department of Chemical and Petroleum Engineering) on gas adsorption in carbon nanostructures. The principal research methods employed in these studies were analytical or numerical theory and computer simulation. In addition, successful collaborations with experimental scientists at these institutions and elsewhere took place. The research focused on the prediction of the thermodynamic properties of gases adsorbed on nanotubes. Studies also were conducted on the spectroscopic properties and momentum distribution of hydrogen. In most cases, experimental data on gas adsorption were consistent with the predictions. In some cases, especially in the case of hydrogen, the data were particularly dependent on material preparation and the kind of experimental study of adsorption that was performed. The authors have developed sophisticated models that improve upon conventional assumptions about carbon nanotubes' electronic properties and their effects on adsorption. They also have investigated the consequences of polydisperse tube size distribution and dilation of the tube lattice in a nanotube bundle on adsorption. The report contains bibliographic references to the 27 research publications that were completed by this group of investigators during the course of this contract with the Army Research Office.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 20, 2003
- Accession Number
- ADA415612
Entities
People
- J. K. Johnson
- Milton W. Cole
- Vincent H. Crespi
Organizations
- Pennsylvania State University