General Electric Company

Walter Vladimir Cicha

Francis A Via

Philip G Kosky

Patrick Roland Lucien Malenfant

Grigorii Lev Soloveichik

Yun Li

Ji-Ung Lee

Pierre-Andre Bui

Davide Louis Simone

Grigorii Lev Soloveichlk

A nanostructure having at least one nanotube and at least one chemical moiety non-covalently attached to the at least one nanotube. At least one dendrimer is bonded to the chemical moiety. The chemical moiety may include soluble polymers, soluble oligomers, and combinations thereof. A method of dispersing at least one nanotube is also described. The method includes providing at least one nanotube and at least one chemical moiety to a solvent; debundling the nanotube; and non-covalently attaching a chemical moiety to the nanotube, wherein the non-covalently attached chemical moiety disperses the nanotube. A method of separating at least one semi-conducting carbon nanotube is also described.

Nanotubes and methods of dispersing and separating nanotubes

The present invention is directed toward field effect transistors (FETs) and thin film transistors (TFTs) comprising carbon nanotubes (CNTs) and to methods of making such devices using solution-based processing techniques, wherein the CNTs within such devices have been fractionated so as to be concentrated in semiconducting CNTs. Additionally, the relatively low-temperature solution-based processing achievable with the methods of the present invention permit the use of plastics in the fabricated devices.

High performance field effect transistors comprising carbon nanotubes fabricated using solution based processing

A method is disclosed for producing phosgene which in one embodiment comprises contacting in at least one reactor a mixture comprising carbon monoxide and chlorine sequentially with a first catalyst followed by contacting the resulting gaseous reaction mixture comprising phosgene with at least one second catalyst of higher relative activity than a first catalyst. In another embodiment a method is disclosed for producing phosgene which comprises contacting in at least one reactor a mixture comprising carbon monoxide and chlorine with at least one catalyst bed comprising a first catalyst wherein at least a portion of said first catalyst is diluted with a second catalyst of higher relative activity than a first catalyst.

Method for producing phosgene

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Schenectady, NY, United States of America

Walter Vladimir Cicha