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Polymer-assisted deposition of films and preparation of carbon nanotube arrays using the films

United States Patent

July 16, 2013
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
Carbon nanotubes were prepared by coating a substrate with a coating solution including a suitable solvent, a soluble polymer, a metal precursor having a first metal selected from iron, nickel, cobalt, and molybdenum, and optionally a second metal selected from aluminum and magnesium, and also a binding agent that forms a complex with the first metal and a complex with the second metal. The coated substrate was exposed to a reducing atmosphere at elevated temperature, and then to a hydrocarbon in the reducing atmosphere. The result was decomposition of the polymer and formation of carbon nanotubes on the substrate. The carbon nanotubes were often in the form of an array on the substrate.
Luo; Hongmei (Los Alamos, NM), Li; Qingwen (Suzhou Jiangsu, CN), Bauer; Eve (Los Alamos, NM), Burrell; Anthony Keiran (Los Alamos, NM), McCleskey; Thomas Mark (Los Alamos, NM), Jia; Quanxi (Los Alamos, NM)
Los Alamos National Security, LLC (Los Alamos, NM)
13/ 589,875
August 20, 2012
STATEMENT REGARDING FEDERAL RIGHTS This invention was made with government support under Contract No. DE-AC52-06NA25396 awarded by the U.S. Department of Energy. The government has certain rights in the invention.