Materials and Electrochemical Research (Mer) Corporation

Other

Baker Hughes Oilfield Operations LLC

Materials and Electrochemical Research Corp.

Alexander Moravsky

Raouf Loutfy

Valery Khabashesku

Charles Nathan Hassen

Darryl Ventura

Timothy P Lowe

A method of treating an elongated conductive element comprises exposing a conductive element sequentially to at least two dopants being different in composition. The dopants may include an acidic dopant and a halogen-based dopant. The conductive element comprises a plurality of carbon nanotubes and has a linear density in a range from about 0.1 tex to about 2.0 tex. The method further comprises mechanically densifying the conductive element. The elongated conductive element comprises at least one carbon nanotube fiber doped with a plurality of p-type dopants comprising at least one acidic dopant and at least one halogen-based dopant. The at least one carbon nanotube fiber has an electrical resistivity equal to or less than about 55 &#x3bc;&#x3a9;&#xb7;cm and an ultimate tensile strength equal to or greater than about 1 GPa.

Methods of treating carbon nanotubes and conductive elements including such carbon nanotubes

The present invention relates to fullerene carbon nanotubes having a cylindrical wall comprising a double layer of carbon atoms and methods for the production and application of these double-wall carbon nanotubes; and, more particularly, to nanotubes with controlled number of carbon layers and methods for the production of macroscopic amounts of these nanotubes and there application as cathode materials in the cold field electron emission devices, notable such devices comprising light emitting CRT's.

Double-walled carbon nanotubes and methods for production and application

Methods for production of double-walled carbon nanotubes

A method for forming a thin film material which comprises depositing solid particles from a flowing suspension or aerosol onto a filter and next adhering the solid particles to a second substrate using an adhesive.

Thin film production method and apparatus

Single walled carbon nanotubes are selectively produced to the substantial exclusion of multi-walled carbon nanotubes by subjecting a mixture of solid hydrocarbon, such as coal, and a transition metal catalyst, to heat generated by an RF induction system sufficient to vaporize both the solid hydrocarbon and the catalyst, and thereafter collecting the single walled carbon nanotubes thereby formed.

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Tucson, AZ, United States of America

Alexander Moravsky