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DREXEL
NANOTECHNOLOGY
I NSTITUTE Major Research Activities
• Nanotubes, Nanocones, and Nanowires
Y. G., J.A. Libera, N. Kalashnikov, M. Yoshimura, Science, v. 290, 317 (2000)
Electrical. Fluorescence. Optical, SERS, Electrochemical measurements
Glass pipette
400 nm
<200 nm Carbobe
Au
Nanotube
J. R. Freedman, et al. Appl. Phys. Lett. 90, 103108 (2007) D. Staack, et al, Angewandte Chemie Int. Ed., 47, 8020 (2008) M. G. Schrlau, et al, Nanotechnology 19, 325102 (2008)
DREXEL NANOTECHNOLOGY I NSTITUTE
Nanostructured Carbide-Derived Carbons for Energy-Related and Biomedical Applications
Yury Gogotsi
• Nanotube-Reinforced Polymers
F. Ko, Y. G., A. Ali, et al., Advanced Materials, v. 15, 1161 (2003)
• Nanodiamond Powders and Composites
S. Osswald, G. Yushin, V. Mochalin, S. Kucheyev, Y. G., J. American Chemical Society, v. 128, 11635 (2006)
DREXEL
NANOTECHNOLOGY
I NSTITUTE Nanotube-Tipped Multifunctional
Cellular Probes
Nucleus of HeLa cell
v
Carbon Nanotube
nucleus
• Nanotube-Based Nanofluidic Devices
Y. G., J. Libera, A. Yazicioglu, et al., Appl. Phys. Letters,v. 79, p.1021 (2001) N. Naguib, H. Ye, Y. G., et al. Nano Letters, v. 4, 2237 (2004)
• Indentation Induced Phase Transformations
Totalfina Elf Energies No. 5
September 2004
Y. G., A. Kailer, K.G. Nickel, Nature, v. 401, 663 (1999)
• Raman Spectroscopy and Electron Microscopy
Process Features
O. Hutchins, US Patent, 1271713 (1918) W.A. Mohun, US Patent, 3066099 (1962)
➢ Network of open pores
S.K. Gordeev et al., J.Appl. Chem. (USSR) 64, 1178 (1991)
➢Precise control over structure and pore size
N.F. Fedorov, Russ. Chem. J. 39, 73 (1995)
Etching Agent:
Cl2, F2 ,Br2, I2, HCl, HBr, HI,
Supercritical H2O
2 nm
Vcarbide = VCDC
Temperature: 200-1200oC
2 nm
Carbide Porosity = 0%
Nanoporous Carbon Porosity >50%
OES
DREXEL
NANOTECHNOLOGY
I NSTITUTE Carbide-Derived Carbon (CDC)
SiC(s) + 2Cl2(g) SiCl4(g) + C(s)
Carbide
Carbide Derived Carbon
Director, A.J. Drexel Nanotechnology Institute Trustee Chair Professor of Materials Science & Engineering Drexel University, Philadelphia, PA 19104, USA gogotsi@
P.H. Tan, S. Dimovski, Y.G., Phil. Trans. Royal Soc. Lond. A, v.362, 2289 (2004)
• Carbide-Derived Carbons for
Energy-Related and Other Applications
Y. G, M. Yoshimura, Nature, v. 367, 628-630 (1994) Y. G., S. Welz, D. Ersoy, M.J. McNallan, Nature, v. 411, 283 (2001) J. Chmiola, G. Yushin, Y.G., et al., Science, v. 313, 1760 (2006)
