The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 2011
Filed:
Sep. 06, 2007
Xueliang Sun, London, CA;
Ruying LI, London, CA;
Yuqin Zhou, Ottawa, CA;
Mei Cai, Bloomfield Hills, MI (US);
Hao Liu, London, CA;
Xueliang Sun, London, CA;
Ruying Li, London, CA;
Yuqin Zhou, Ottawa, CA;
Mei Cai, Bloomfield Hills, MI (US);
Hao Liu, London, CA;
GM Global Technology Operations LLC, Detroit, MI (US);
University of Western Ontario, London, Ontario, CA;
Abstract
Metal powder (such as tin, titanium, or tungsten powder) is heated in a flowing stream of an inert gas, such as argon, containing a small abundance of oxygen at a temperature to produce metal vapor. The metal reacts with the oxygen to form and deposit one-dimensional nanostructures of oxygen-containing metal on the metal powder (in the case of Ti and W) or on a suitable nearby substrate in the case of the lower melting tin. The metal oxides are not necessarily stoichiometric compounds. Water may be introduced into the flowing inert gas to increase or control the oxygen content. Sulfur vapor or a carbon source may be introduced to dope the nanostructures with sulfur or carbon. Reaction conditions may be modified to vary the shapes of the one-dimensional nanostructures.