Ricardo Prada Silvy - Norman OK, US Yongqiang Tan - Norman OK, US
International Classification:
B01J 27/22 B82Y 30/00
US Classification:
502177, 977773, 977902
Abstract:
The present invention provides a catalyst precursor and a catalyst suitable for preparing multi-wall carbon nanotubes. The resulting multi-wall carbon nanotubes have a narrow distribution as to the number of walls forming the tubes and a narrow distribution in the range of diameters for the tubes. Additionally, the present invention provides methods for producing multi-wall carbon nanotubes having narrow distributions in the number of walls and diameters. Further, the present invention provides a composition of spent catalyst carrying multi-wall nanotubes having narrow distribution ranges of walls and diameters.
Microstructured Catalysts And Methods Of Use For Producing Carbon Nanotubes
Daniel E. Resasco - Norman OK, US Yongqiang Tan - Norman OK, US
International Classification:
D01F 9/12 B01J 31/06 B05D 3/10
US Classification:
4234472, 427387, 502159, 4234471, 502158, 977751
Abstract:
Methods for producing microstructured catalytic substrates and microstructured catalytic substrates produced by the methods, and methods for growing single-walled carbon nanotubes on the microstructured catalytic substrates wherein the single-walled carbon nanotubes are preferably of a highly specific chirality.
Single Wall Carbon Nanotube Purification Process And Improved Single Wall Carbon Nanotubes
John D. Mashburn - Edmond OK, US Yongqiang Tan - Norman OK, US
International Classification:
C01B 31/02
Abstract:
Disclosed are methods for decapping single wall carbon nanotubes and purifying the decapped single wall carbon nanotubes. The disclosed methods include the steps of oxidizing the single wall carbon nanotubes to remove the terminal end cap and subsequently acid washing the single wall carbon nanotubes to remove the catalyst particles. The resulting carbon nanotubes have improved BET surface area and pore volume.
Catalyst And Methods For Producing Multi-Wall Carbon Nanotubes
The present invention provides a catalyst precursor and a catalyst suitable for preparing multi-wall carbon nanotubes. The resulting multi-wall carbon nanotubes have a narrow distribution as to the number of walls forming the tubes and a narrow distribution in the range of diameters for the tubes. Additionally, the present invention provides methods for producing multi-wall carbon nanotubes having narrow distributions in the number of walls and diameters. Further, the present invention provides a composition of spent catalyst carrying multi-wall nanotubes having narrow distribution ranges of walls and diameters.
SouthWest NanoTechnologies Inc. since Oct 2007
Senior Development Engineer
University of Oklahoma Aug 2004 - Sep 2007
Postdoctoral Research Associate
China Petrochemical Corporation (Sinopec) Jul 1996 - Aug 1999
Research Associate
Education:
University of Mississippi 1999 - 2004
PhD, Chemical Engineering
Skills:
Nanotechnology Characterization Chemical Engineering Catalysis Materials Science Nanomaterials Heterogeneous Catalysis Polymers Process Engineering Tem Carbon Nanotubes Catalyst Fluidized Bed Reactor Afm