University of Oklahoma

Sun Company, Inc (r&m)

Sunoco Inc (r&m)

Phillips Petroleum Company

Balzano, Leandro

Zhang, Liang

Resasco, Daniel E.

Chungchamroenkit, Pisan

Herrera, Jose E.

Daniel E Resasco

Leandro Balzano

Walter Alvarez

Boonyarach Kitiyanan

Vincent A Durante

Jeffrey H Harwell

Gary Jacobs

Gary L Haller

Bonita K Marcus

Chen-Shi Huang

Haiyang Liu

Cristina L Padro

Roger G Harrison, Jr

Darrell W Walker

Eugene L Coggins

Thomas W Bierl

Lawrence H Finkel

Jose E Herrera

Luis Filipe Ferreira Neves

Liang Zhang

Tin-Tack Peter Cheung

Neal Donald McDaniel

Edgar A O'Rear

Darin B Tiedtke

Daniel P Swatske

Gustavo Larsen

Olga Matarredona

Siriporn Jongpatiwut

Harry J Barraza

Francisco Pompeo

Olga Lucia Rueda

Steven P Crossley

Mohannad J Kadhum

Nicholas M Briggs

Ben Shiau

Pisan Chungchamroenkit

Disclosed is a method of treating spent equilibrium catalyst (ECAT) for reuse, in which a quantity of spent ECAT comprising hydrophilic particles with differing levels of metal contamination is disposed into a reactor and treated to form carbon nanotubes on the particles having metal contamination, thereby rendering at least a portion of the spent ECAT particles hydrophobic; the hydrophobic particles can then be separated from the hydrophilic particles. Also disclosed is a method of remediating an oil spill using a carbon nanotube sponge material.

Methods of treatment and use of spent equilibrium catalyst

Stable CNT dispersions having a combination of polymeric dispersants, including at least one first dispersant and at least one second dispersant, wherein the second dispersant is stable under saline conditions, and methods of using the CNT dispersions in subterranean formations for enhancing oil recovery therefrom.

Stabilized carbon nanotube suspensions

Compositions for detecting and/or destroying cancer tumors and/or cancer cells via photodynamic therapy are disclosed, as well as methods of use thereof. The compositions comprise a linking protein or peptide attached to or otherwise physically associated with a carbon nanotube to form a targeted protein-carbon nanotube complex.

Compositions and methods for cancer treatment using targeted carbon nanotubes

The present invention is a method for detecting and destroying cancer tumors. The method is based on the concept of associating a linking protein or linking peptide such as, but not limited to, annexin V or other annexins to carbon nanotubes such as single-walled carbon nanotubes (SWNTs) to form a protein-CNT complex. Said linking protein or peptide can selectively bind to cancerous cells, especially tumor vasculature endothelial cells, rather than to healthy ones by binding to cancer-specific external receptors such as anionic phospholipids including phosphatidylserine expressed on the outer surfaces of cancer cells only. Irradiation of bound CNTs with one or more specific electromagnetic wavelengths is then used to detect and destroy those cells to which the CNTs are bound via the linking protein or peptide thereby destroying the tumor or cancer cells and preferably an immunostimulant is provided to the patient to enhance the immune response against antigens released from the tumor or cancer cells.

A method for directly growing carbon nanotubes, and in particular single-walled carbon nanotubes on a flat substrate, such as a silicon wafer, and subsequently transferring the nanotubes onto the surface of a polymer film, or separately harvesting the carbon nanotubes from the flat substrate.

Methods for growing and harvesting carbon nanotubes

Methods of forming carbon nanotube-polymer composites comprising single-walled carbon nanotubes. The carbon nanotube-polymer composites comprise highly dispersed carbon nanotubes having high melt elasticity and high conductivity.

Methods of making polymer composites containing single-walled carbon nanotubes

Composites of single-walled carbon nanotubes (SWNTs) and a ceramic support (e.g., silica) comprising a small amount of catalytic metal, e.g., cobalt and molybdenum, are described. The particle comprising the metal and ceramic support is used as the catalyst for the production of the single-walled carbon nanotubes. The nanotube-ceramic composite thus produced can be used 'as prepared' without further purification providing significant cost advantages. The nanotube-ceramic composite has also been shown to have improved properties versus those of purified carbon nanotubes in certain applications such as field emission devices. Use of precipitated and fumed silicas has resulted in nanotube-ceramic composites which may synergistically improve the properties of both the ceramic (e.g., silica) and the single-walled carbon nanotubes. Addition of these composites to polymers may improve their properties. These properties include thermal conductivity, thermal stability (tolerance to degradation), electrical conductivity, modification of crystallization kinetics, strength, elasticity modulus, fracture toughness, and other mechanical properties. Other nanotube-ceramic composites may be produced based on AlO, MgO and ZrO, for example, which are suitable for a large variety of applications.

Single-walled carbon nanotube-ceramic composites and methods of use

A method of purifying a single-walled carbon nanotube catalytic product having the steps of providing a catalytic product including single-walled carbon nanotubes, and a Group VIII and/or Group VIb transition metal, exposing the catalytic product to a heated oxidative gas to provide a treated carbon nanotube product including single-walled carbon nanotubes and the Group VIII and/or Group VIb transition metal, and exposing the treated carbon nanotube product to an acid to separate the single-walled carbon nanotubes from the Group VIII and/or Group VIb transition metal. The catalytic product may include a support material and amorphous carbon.

Method and apparatus for producing carbon nanotubes

A method of producing a carbon nanotube product comprising a catalytic particle and single-walled carbon nanotubes deposited thereon. The catalytic particles preferably contain at least one metal from Group VIII, including for example Co, Ni, Ru, Rh, Pd, Ir, and Pt, and at least one metal from Group VIb including for example Mo, W and Cr. The catalytic particle preferably further comprises a support material such as silica. The carbon nanotube product is preferably formed by exposing the catalytic particle to a carbon-containing gas at a temperature sufficient to form the single-walled nanotubes as a primary portion of a solid carbon product on the catalytic particles.

Method of making carbon nanotubes

A process and apparatus for catalytic production of single walled carbon nanotubes. Catalytic particles are exposed to different process conditions at successive stages wherein the catalytic particles do not come in contact with reactive (catalytic) gases until preferred process conditions have been attained, thereby controlling the quantity and form of carbon nanotubes produced. The reaction gas is preferably provided at a high space velocity to minimize CObuild-up. The process also contemplates processes and apparatus which recycle and reuse the gases and catalytic particulate materials, thereby maximizing cost efficiency, reducing wastes, reducing the need for additional raw materials, and producing the carbon nanotubes, especially SWNTs, in greater quantities and for lower costs.

Process and apparatus for producing single-walled carbon nanotubes

A catalyst composition and method of use of the catalyst composition for producing single-walled carbon nanotubes (SWNTs). The catalyst is cobalt (Co) and molybdenum (Mo) on a silica support. The Mo occurs primarily as dispersed Mo oxide clusters on the support while the Co is primarily in an octahedral configuration in a CoMoO-like phase disposed on the Mo oxide clusters. In the method, the catalyst is used and the process conditions manipulated in such a manner as to enable the diameters of the SWNTs to be substantially controlled.

Method for producing single walled carbon nanotubes

Method and catalyst for producing single walled carbon nanotubes

Dispersable pastes comprising single-walled carbon nanotubes (SWNT) in water or in an organic solvent are prepared. The method of preparing the dispersable pastes comprises in general the following steps: a) removal of the catalyst used during the synthesis of SWNT; b) while the SWNT are still wet, addition of the appropriate amount of solvent, in a solvent/SWNT ratio which preferably varies between 30:1 and 100:1, depending on the desired viscosity of the paste; and c) high-energy horn sonication with a dismembrator probe. The resulting pastes are suitable for easy redispersion in solvents and incorporation in various matrices such as polymers. They are also suitable to be impregnated with metal precursors such as noble metal compounds for example, Pt. Appropriate drying and thermal treatments of the impregnated material produce metal-SWNT composites in which small metal clusters can be uniformly dispersed over the nanotube surface. These metal-SWNT composites may find applications as catalysts as well as electrodes for fuel cells, batteries, and capacitors.

Carbon nanotube pastes and methods of use

A method of forming carbon nanotube-filled composites using miniemulsion polymerization. The carbon nanotubes are preferably single-walled carbon nanotubes. The carbon nanotubes are highly dispersed within and associated with the polymer comprising the composite.

Carbon nanotube-filled composites prepared by in-situ polymerization

Growing community of inventors

Norman, OK, United States of America

Daniel E Resasco