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. 18, 2011
Filed:
Mar. 17, 2008
Juan Cai, Fremont, CA (US);
Kyle L. Fujdala, San Jose, CA (US);
Mats I. Larsson, Sunnyvale, CA (US);
Juan Cai, Fremont, CA (US);
Kyle L. Fujdala, San Jose, CA (US);
Mats I. Larsson, Sunnyvale, CA (US);
Nanostellar, Inc., Redwood City, CA (US);
Abstract
The oxygen content of metal species in a heterogeneous catalyst is determined using volumetric adsorption measurements. Such measurements are employed to quantify the amount of reduction gas that it takes to reduce metal species of a catalyst sample, and the oxygen content is derived from this amount and the reaction stoichiometry. This method can be applied to mono-metallic and multi-metallic heterogeneous catalysts and has been shown to provide at least 10 times better detection sensitivity than typical TCDs in TPR-TCD methods.