Nanotechnology Colloquium
Colloquium Date: Monday, January 12, 2009


A bi-weekly event to present and discuss issues related to developments, applications and commercialization of nanotechnology.

"Graphene-based Materials"


Professor Rod Ruoff
Cockrell Family Regents Chair, Dept of Mechanical Engineering The University of Texas at Austin


(VIDEO CONFERENCED FROM AUSTIN)


Abstract:

Our top-down approaches [1,2] inspired physicists to study individual layers of graphite obtained by micromechanical exfoliation, but our current approach has been to convert graphite to graphite oxide (GO), generate aqueous colloidal suspensions containing individual layers of GO (we call them 'graphene oxide'), and to use these 'graphene oxide sheets' in a variety of ways. For example, we have embedded individual and reduced graphene oxide sheets in polymers such as polystyrene and evaluated their dispersion, morphology, and the electrical percolation and thus conductivity of the resulting composites. In parallel paths, we have: (i) undertaken studies of individual graphene oxide and reduced graphene oxide sheets, to elucidate their chemical, optical, and electrical properties, (ii) embedded graphene oxide sheets in glass by a sol-gel route and made electrically conductive and transparent glass coatings, and (iii) produced 'graphene oxide paper', a material with intriguing mechanical properties (iv) produce d reduced graphene oxide powder with moderately high surface area and used this to study electrochemical double layer capacitance (v) made carbon-13 labeled graphite and thus carbon-13 labeled graphite oxide, and studied its detailed chemical structure with SS NMR. This survey talk with present an overview of these results.

Support of our work by the NSF, ONR/NRL, NASA, and DARPA is appreciated.
  1. Lu XK, Yu MF, Huang H, and Ruoff RS, Tailoring graphite with the goal of achieving single sheets, Nanotechnology, 10, 269-272 (1999).
  2. Lu XK, Huang H, Nemchuk N, and Ruoff RS, Patterning of highly oriented pyrolytic graphite by oxygen plasma etching, Applied Physics Letters, 75, 193-195 (1999).
  • See also papers on http://bucky-central.me.utexas.edu/publications.htm such as #139,146, 150,155, 160, 164, 166, 168, 169, 174, 179, 180, 181, 182.


Bio: Professor Rod Ruoff

Prior to joining The University of Texas at Austin as a Cockrell Family Regents Chair in Mechanical Engineering, Prof. Rod Ruoff served as Director of the Biologically Inspired Materials Institute at Northwestern University. He has been a 'Visiting Chair Professor' at Sungkyunkwan University in South Korea. He received his B.S. in Chemistry from the U. of Texas (Austin) and Ph.D. from the University of Illinois- Urbana. He was a Fulbright Fellow at the Max Planck Institute-Goettingen, Germany. From '89-'90, he was a Postdoctoral Fellow at the IBM T. J. Watson Research Center in New York. Prior to joining Northwestern in 2000, he was a Staff Scientist at the Molecular Physics Laboratory of SRI International and Associate Professor of Physics at Washington University. His research activities include global environment and energy; synthesis and physical/chemical properties of nanostructures and composites; nanorobotics, NEMS, and developing new tools for biomedical research. Prof. Ruoff has published 185 refereed journal articles in the fields of chemistry, physics, mechanics, & materials science.


VENUE: You may attend the presentation from any one of these law offices of Winstead PC or from UT Dallas

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AUSTIN: Winstead PC
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Austin, TX 78701
512-370-2800

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CHICAGO: NEW VENUE
Illinois Institute of Technology
Stuart Building, Room 212,
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Chicago IL 60616;
Contact Jennifer Keplinger at keplinger@iit.edu to confirm attendence

 
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COLLEGE STATION: Texas A&M University
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College Station, TX 77843; 979-845-8912

 
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DALLAS: Winstead PC
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Program begins at 11:30am [CDT] with a complimentary lunch provided by Winstead PC. Presentation begins at 12:00pm.

Event Coordinators:
Richard Fink 512-339-5020x130 dfink@appliednanotech.net
Max Roundhill 512-339-5020x120 roundhill@appliednanotech.net

Chairman: Dr. Zvi Yaniv

Registration deadline is Friday, January 9 at 5:00 PM Central.

To register, please send an email to Nina Shuvalov NShuvalov@appliednanotech.net with your preferred attendance location.

   


NANOMATERIALS APPLICATION CENTER
Walt Trybula, Ph.D.
Director
Texas State University
San Marcos, TX
(512) 245-6062


DVDs of selected presentations from previous speakers are available for a small fee (contact Max Roundhill mroundhill@appliednanotech.net)

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