1,744 research outputs found
The Success Model: A Student Athlete Educational Model Designed to Improve Academic Performance Through the Utilization of Athletic Transferable Skills
The Success Model was developed to assist educators and counselors improve the way they prepare student athletes for academic, athletic, and future career success. The Success Model is made up four interrelating components: (a) Seif-management, (b) Note-taking, (c) Test-taking, and (d) Career Resources. This article explored why the Success Model is needed and how athletic transferable skills can be used as the building blocks for teaching studenl athletes how to succeed in classroom as well as all areas of life
Mechanically Assisted Exfoliation and Functionalization of Thermally Converted Graphene Sheets
Published versio
Rayleigh Imaging of Graphene and Graphene Layers
We investigate graphene and graphene layers on different substrates by
monochromatic and white-light confocal Rayleigh scattering microscopy. The
image contrast depends sensitively on the dielectric properties of the sample
as well as the substrate geometry and can be described quantitatively using the
complex refractive index of bulk graphite. For few layers (<6) the
monochromatic contrast increases linearly with thickness: the samples behave as
a superposition of single sheets which act as independent two dimensional
electron gases. Thus, Rayleigh imaging is a general, simple and quick tool to
identify graphene layers, that is readily combined with Raman scattering, which
provides structural identification.Comment: 8 pages, 9 figure
Modeling of graphite oxide
Based on density functional calculations, optimized structures of graphite
oxide are found for various coverage by oxygen and hydroxyl groups, as well as
their ratio corresponding to the minimum of total energy. The model proposed
describes well known experimental results. In particular, it explains why it is
so difficult to reduce the graphite oxide up to pure graphene. Evolution of the
electronic structure of graphite oxide with the coverage change is
investigated.Comment: 12 pages, 7 figures. Discussion about reduction to pure graphene and
several references added. Methodological part expanded. Accepted to J. Am.
Chem. So
Edge-Functionalization of Pyrene as a Miniature Graphene via Friedel–Crafts Acylation Reaction in Poly(Phosphoric Acid)
The feasibility of edge-functionalization of graphite was tested via the model reaction between pyrene and 4-(2,4,6-trimethylphenyloxy)benzamide (TMPBA) in poly(phosphoric acid) (PPA)/phosphorous pentoxide (P2O5) medium. The functionalization was confirmed by various characterization techniques. On the basis of the model study, the reaction condition could be extended to the edge-functionalization of graphite with TMPBA. Preliminary results showed that the resultant TMPBA-grafted graphite (graphite-g-TMPBA) was found to be readily dispersible in N-methyl-2-pyrrolidone (NMP) and can be used as a precursor for edge-functionalized graphene (EFG)
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