P-We-70 In situ evaluation of the doping effect of Au in Ni for Carbon Nanotube Synthesis

Wednesday, June 8, 2011
Ontario Exhibit Hall (Detroit Marriott Hotel at the Renaissance Center )
Renu Sharma1, Peter Rez2, Ryan Miranda2 and Andrew Herzing3, (1)Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, MD, (2)Department of Physics, Arizona State University, Tempe, AZ, (3)Materials Measurement Lab, Arizona State University, Gaithersburg, MD
We combine in situ and ex situ measurements to demonstrate the importance of the nature of catalyst, substrate temperature and precursor pressure in controlling the activity of catalyst for carbon nanotubes synthesis.  Atomic resolution videos reveal their nucleation and growth mechanism. Density functional theory is used to explain our obseravtions.

Extended Abstracts: