| Patent application number | Description | Published |
|---|
| 20090011293 | Selective Oxidation of Carbon Monoxide Relative to Hydrogen Using Catalytically Active Gold - The present invention provides technology for controlling, or tuning, the catalytic activity of gold provided upon nanoporous supports such as those derived from nanoparticulate, crystalline titania. In some aspects of practice, the surface of nanoparticulate media incorporated into a catalyst system of the present invention is provided with chemical modifications of the surface that dramatically suppress the ability of the resultant catalyst system to oxidize hydrogen. Yet, the system still readily oxidizes CO. In other words, by selecting and/or altering the nanoparticulate surface via the principles of the present invention, PROX catalysts are readily made from materials including catalytically active gold and nanoparticulate media. Additionally, the nanoparticulate support also may be optionally thermally treated to further enhance selectivity for CO oxidation with respect to hydrogen. Such thermal treatments may occur before or after chemical modification, but desirably occur prior to depositing catalytically active gold onto the support incorporating the nanoparticles. | 01-08-2009 |
| 20100197481 | CATALYSTS, ACTIVATING AGENTS, SUPPORT MEDIA, AND RELATED METHODOLOGIES USEFUL FOR MAKING CATALYST SYSTEMS ESPECIALLY WHEN THE CATALYST IS DEPOSITED ONTO THE SUPPORT MEDIA USING PHYSICAL VAPOR DEPOSITION - Use of physical vapor deposition methodologies to deposit nanoscale gold on activating support media makes the use of catalytically active gold dramatically easier and opens the door to significant improvements associated with developing, making, and using gold-based, catalytic systems. The present invention, therefore, relates to novel features, ingredients, and formulations of gold-based, heterogeneous catalyst systems generally comprising nanoscale gold deposited onto a nanoporous support. | 08-05-2010 |
| 20100221159 | LOW PRESSURE DROP, HIGHLY ACTIVE CATALYST SYSTEMS USING CATALYTICALLY ACTIVE GOLD - Highly active, low pressure drop catalyst systems. Catalytically active material is provided on at least a portion of the channel sidewalls of a body comprising one or more flow-through channels. The channel sidewalls preferably bear a charge, e.g., an electrostatic or electret charge, to help adhere the catalytically active material to the sidewall. The catalytically active material preferably includes gold provided on a particulate support, and PVD techniques are used to deposit catalytically active gold onto the support. Optionally, the gold-bearing particulates may be charged as well in a manner to facilitate attraction between the particulates and the sidewalls. | 09-02-2010 |
| 20100273091 | Catalytically Active Gold Supported On Thermally Treated Nanoporous Supports - The present invention provides technology for controlling, or tuning, the catalytic activity of gold provided upon nanoporous supports such as those derived from nanoparticulate titania. It has been discovered that the nature of the surfaces of the nanoparticles used to support a nano-metal catalyst, such as catalytically active gold, has a profound effect upon the catalytic properties of the supported catalyst. The support surface may be altered as desired to control the activity of the gold. The present invention teaches how thermal treatment of nanoparticulate media incorporated into a nanoporous support prior to deposition of catalytically active gold dramatically suppresses the ability of a resultant catalyst system to oxidize hydrogen. Yet, the system still readily oxidizes CO. | 10-28-2010 |
| 20110100220 | FLUORINATED POROUS ARTICLE - An article having at least one fluorinated porous layer having a basis weight of about 10 to about 300 grams per square meter and a thickness of about 0.20 to about 20 millimeters. The porous layer also exhibits a Q | 05-05-2011 |
| 20110100298 | FLUORINATING APPARATUS - An apparatus for fluorinating a substrate. The apparatus includes a vacuum chamber and a means for generating a fluorine-containing plasma throughout the entire chamber. The apparatus includes a capacitively-coupled system within the chamber that has at least one electrode powered by an RF source and at least one grounded electrode substantially parallel to the powered electrode. The electrodes are separated by about 25 mm or less. | 05-05-2011 |
