Accession Number:

ADP012144

Title:

Designability of Graphitic Cones

Descriptive Note:

Proceeding

Corporate Author:

NEC RESEARCH INST INC PRINCETON NJ

Personal Author(s):

Report Date:

2001-04-01

Pagination or Media Count:

6.0

Abstract:

We show that, with topologically flexible seeds which are allowed to explore different growth modes, graphitic cones are inherently more designable than flat graphitic disks. The designability of a structure is the number of seed topologies encoding that structure. We illustrate designability with a simple model, where graphite grows onto Cn 5n3O ring seeds. For a wide range of ring sizes, cones are the most likely topological outcome. Results from the model agree well with data from special cone-rich carbon black samples. The concept of designability allows entropy to be incorporated into the pentagon road model of the formation of curved graphitic structures.

Subject Categories:

  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE