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B. R. Stoner and J. T. Glass, Diamond & Related Materials 23 (2012) 130–134.

A Morphological Classification for Charge Density Optimization Involving Graphenated Carbon Nanotubes Jeffrey T. Glass, Duke University, DMR 1106173.

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B. R. Stoner and J. T. Glass, Diamond & Related Materials 23 (2012) 130–134.

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  1. A Morphological Classification for Charge Density Optimization Involving Graphenated Carbon NanotubesJeffrey T. Glass, Duke University, DMR 1106173 The goal of this work is to integrate graphene and carbon nanotubes (CNTs) to achieve a high charge density in a small nominal area. This is achieved by the growth of high charge density graphene foliates or protrusions from the sidewalls of CNTs (g-CNTs). Aligned CNTs provide a three dimensional framework for the graphene edges. This figure is a classification scheme that was developed to provide the context of these structures based on dimensional organization of dangling bonds, showing SEMs of select carbon nanostructures: nano-sheets (NS); activated carbon (AC); aligned CNTs (a-CNTs); a TEM showing microstructure of the bamboo- structured CNTs (b-CNTs); and a B. R. Stoner and J. T. Glass, Diamond & Related Materials 23 (2012) 130–134. series of g-CNTs with increasing graphene foliate density (a)-(c). The red-dotted contours represent the magnitude of the linear density of dangling bonds in log of the linear edge density cm-1. The optimum structure in the lower right corner (“?”) represents a hypothetical, maximum density of 3D-interconnected edge-exposed structures.

  2. Integration of Education and Research: Design of Experiments and Undergraduate ResearchJeffrey T. Glass, Duke University, DMR 1106173 Two undergraduate students have conducted research related to this grant and have provided the graduate student with the opportunity to learn how to manage others. One of the students joined a summer outreach program in China where he presented his U.S. University experiences, including the research experience he had on this project, to high school students. He spoke to more than 1,000 students in person and provided two podcasts with around 3,000 people tuning in each time. He has also given interviews on CCTV and ND News, the equivalent of CNN and NYTimes. The Co-PIs ran an independent study for the students on Design of Experiment methodology. It is our experience that companies which hire our students highly value this skill and it is simply not taught formally in most engineering programs. The PI taught a carbon nanostructures course the semester prior to this grant and the next time that course is taught it will include the outcomes from this NSF grant.

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