Smalley, Richard E.2009-06-042009-06-041999Rodriguez-Macias, Fernando J.. "Large-scale production and purification of single-walled carbon nanotubes." (1999) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/17294">https://hdl.handle.net/1911/17294</a>.https://hdl.handle.net/1911/17294Single Walled Nanotubes were produced in large scale by Laser Vaporization with maximum yields of 50%. Optimization experiments give relative yields of (Nickel Cobalt (1:1 atomic % each)) = (Nickel Tungsten (1:1)) $>$ (Nickel Yttrium (1.6:0.4)/Cobalt Platinum (0.9:0.3)) $>$ (Nickel Platinum (0.9:0.3)/Cobalt Platinum (1:1)/Nickel Yttrium (4.2:1)/Nickel Molybdenum (1:1)) $\gg$ (Ruthenium (0.5)). For changes in atmosphere the yields are Argon (500 torr) = Carbon Monoxide (700 torr) = Argon (700 torr) $\gg$ Helium (500 torr). Differences in yields are discussed and compared to results from the electric arc technique. The setup has been successfully scaled-up and operates for more than 36 hours. The target preparation and SWNT material purification procedures have been optimized and scaled-up accordingly to obtain grams of 95% pure SWNT routinely. High quality material is now available, from a facility called "tubes@rice", for research purposes.133 p.application/pdfengCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.Physical chemistryChemical engineeringEngineeringMaterials scienceThesisTHESIS CHEM. 1999 RODRIGUEZ-MACIAS