Catalyst. Catalyst is a component of the Fuel Cell that helps to initiate and maintain the electrochemical reaction needed to generate electricity. Catalyst is typically precious metals-based but may consist of other low cost materials.
Catalyst. We serve as a catalyst to promote the sustainability of effective programs for young children and their families.
Catalyst. The Catalyst;
Catalyst. In LT PEM FC, Platinum catalyst is required to promote hydrogen oxidation at anode and oxygen reduction at cathode. For a large diffusion of FC based systems, in CHP or automotive sectors, it is fundamental reduce the amount of precious catalyst. At present, total loadings are in the range 0.6-0.8 mgPt/cm2. More than 60% of catalyst is on the cathode side, due to slow kinetics of the oxygen reduction reaction. A significant reduction of Pt content on the electrodes is possible: for instance Panasonic, one of the major actors in Japanese ENEFIELD project, claims a 50% reduction of Platinum load in its fuel cells from 2011 to 2013. Platinum is employed in alloys with other metals like ruthenium, molybdenum, iron and nickel. The poisoning of the noble metal and the corrosion of the non-noble metal are the major problems of the catalyst that influence long-term stability and lifetime of the stack. Platinum is the most active metal to promote the oxidation reaction of oxygen, via the so-called “4 electrons transfer step” reaction. The adoption of less active metals, e.g. Au and Hg, promote the oxidation via the “2 electrons transfer step” with formation of highly reactive H2O2 as intermediate product. H2O2 is responsible for fast chemical degradation of the MEA. Pt is also the best current catalyst for the anode side. The Pt loading can be particularly reduced when operating with pure hydrogen. However, in the particular case of LT-PEM operating under reformate fuel, better tolerance to CO needs to maintain higher Pt loadings and most often not only pure Pt is used. Better state-of-art catalyst is Pt-Ru, thanks to the double function of ruthenium, which decreases the CO adsorption and promotes the CO oxidation into CO2 at lower potential than pure Pt. Major problem of this state-of-art catalyst is related to the dissolution of Ru which occurs even at low potential. One operating solution consists in using some air (air bleeding, 1-5% of air) in the fuel stream to promote CO oxidation and reduce the voltage losses due to anode catalyst poisoning. Air bleeding can be adopted as a normal operative condition of the stack to prevent CO poisoning, as well as ex-post or temporary solution to regenerate already poisoned catalyst and recover performances of the fuel cells4. Anode air bleeding is the most effective method since it is simple, efficient, and inexpensive. Although the benefits of air bleeding for the performance of CO-poisoned PEM are well known, the effect...
Catalyst. Any catalyst or promoter used in the production of Acetic Acid in the Unit as of the time of determination.
Catalyst. Licensor will guarantee a continuous supply of Rentech Catalyst to Licensee for the Rentech Plant designed, constructed and operated by Licensee pursuant to this Agreement, and Licensee will purchase and pay for the Rentech Catalyst. Licensor and ITN shall at the appropriate time develop, design, construct and operate a Rentech Catalyst manufacturing plant in the Union of India. If Licensor, for any reason, is unable to supply Rentech Catalyst to Licensee, Licensee shall have the exclusive right to design, develop and construct a catalyst manufacturing plant in the Licensee's territory to be financed, owned and operated by Licensee for the production of Rentech Catalyst for use only in Rentech Plants located in the Licensed Territory and other Rentech Plants constructed under license contracts developed by ITN. 5.
Catalyst. Introduction The ammonia conversion catalyst used in the nitric acid plant is a pad consisting of multiple layers of woven platinum gauze. When a “getter” gauze is utilized, additional sheets of gauze containing Pd or other noble metals are added. Pt and Rh are captured on these layers while additional Pd is preferentially lost. Special proprietary gauze support packs may also be used. These special support packs may permit lower catalyst loadings to be used.
Catalyst. The guaranteed performances shown hereafter are established for the use of the appropriate amount of STR 111 catalyst sold by LICENSOR.
Catalyst. Sellers and Principals hereby acknowledge that the ownership of the catalyst component of the Airocide products has been transferred from JJS to the Purchaser pursuant to the terms of this Agreement. Neither Sellers nor Principals shall disclose to any third party any information regarding the catalyst, including its ingredients or how it is manufactured or how it is used.
Catalyst. Without the consent of Buyer, Catalyst shall not invest in any Person that is a client of Buyer, any subsidiary of Buyer, the Company or the Subsidiaries, unless Catalyst made its initial investment in such Person prior to the Closing Date. The Designated Principals shall not establish an investment fund similar to Catalyst without prior consultation with Buyer and in any event any such fund shall be subject to the investment restrictions described in the foregoing sentence for so long as any Designated Principal maintains an equity interest in such fund. On or prior to the Closing Date, the Designated Principals shall take such action as is required to terminate all benefits payable under the Company's benefit plans to employees of Catalyst without any cost, expense, liability or obligation to the Company.
