iridium rhenium catalysis
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A new type of electrocatalyst with a core–shell structure that consists of a platinum monolayer shell placed on an iridium–rhenium nanoparticle core or platinum and palladium bilayer shell deposited on that core has been prepared and tested for electrocatalytic activity for the oxygen reduction reaction. Carbon-supported iridium–rhenium alloy nanoparticles with several different molar ...
SERVICES Gemini Industries offers un-paralleled service for reclamation of precious group metals (PGM) comprised of: Platinum, Rhenium, Iridium and Palladium.
We have developed an X-ray fluorescence method for the assay quality analysis of fresh reforming catalysts containing platinum, rhenium, and iridium. This method was applied to numerous samples over the past five years.
CY1028 Iridium (Ir) Catalyst (Organo-metallic Catalyst) Stanford Advanced Material (SAM) is a reliable precious metals wholesaler. We provide high quality iridium metal catalysts for electronic, pharmaceutical, research and development applications.
Mechanism of Isomerization and Methyl Migration in Heterobimetallic Rhenium−Iridium Complexes: Experimental and ... would serve as an alkane dehydrogenation catalyst aﬀording alkene and iridium hydride. Re would promote DODH of polyols. Hydride transfer or spillover from iridium to
To avoid the weight penalty associated with a large iridium/rhenium chamber, Ultramet replaces most of the rhenium with low-density carbon/carbon. The result is a lightweight, high-performance engine that can operate at high temperature and at high pressure.
The second Symposium on Catalysis organised by the Canadian Institute of Chemistry was held in June at McMaster University, Hamilton, Ontario, and was well ... on iridium and rhenium alloys. Porous com- pacts based on the 50 per cent iridium, 50 per cent tungsten composition had the hex-
The characterization of catalyst and the reactivity of alcohols suggest that 1,3-propanediol is produced by the attack of active hydrogen species on iridium metal to 1-glyceride species formed on the oxidized rhenium cluster.
Jun 16, 1992· The catalyst of claim 1, wherein ruthenium, rhenium or iridium is present in an amount ranging from 0.1 to 10 weight percent. 3. The catalyst of claim 1, wherein the non-acidic microporous crystalline material contains an element selected from the group consisting of indium, tin thallium and lead in an amount which ranges from 0.1 to 20 weight ...
RHENIUM (Data in kilograms of rhenium content unless otherwise noted) ... Iridium and tin ... bimetallic catalysts might decrease rhenium's share of the existing catalyst market; however, this would likely be offset by rhenium-bearing catalysts being considered for use in several proposed gas-to-liquid projects. Materials that
Platinum, Palladium, Iridium, Rhodium, Ruthenium, Rhenium & Indium traded online. Buy Sell safe secure
Full Paper Catalytic Hydrodeoxygenation of High Carbon Furylmethanes to Renewable Jet-fuel Ranged Alkanes over a Rhenium-Modified Iridium Catalyst
The figure shows the hydrogenation reduction of CIO3 " ions with bimetallic iridium and rhenium catalyst of example 18 (Irs5%, Re-15%), compared with monometallic iridium and rhenium catalysts; the catalysts are supported on T1O2 with a total metal loading of 0.4% by weight.
130 RHENIUM (Data in kilograms of rhenium content unless otherwise noted) Domestic Production and Use: During 2012, ores containing rhenium were mined at seven operations (four in Arizona, and one each in Montana, New Mexico, and Utah).
Rhenium (Re), a refractory metal that has gained signiﬁcant recognition as a high performance engineer- ing material, is mostly used in military, aircraft and aerospace applications, as well as for catalysis in the
Download Citation on ResearchGate | Effect of Steam on the Coking and on the Regeneration of Metal Catalysts: A Comparative Study of Alumina-Supported Platinum, Rhenium, Iridium and Rhodium ...
Researchers at the University of Louisville are developing new catalyst materials for the hydrogen evolution reaction in water splitting, where the bond between hydrogen (H2) and oxygen is released.
Catalytic Hydrodeoxygenation of High Carbon Furylmethanes to Renewable Jet-fuel Ranged Alkanes over a Rhenium-Modified Iridium Catalyst. A first-principles model for anomalous segregation in dilute ternary tungsten-rhenium-vacancy alloys.
Ashby's catalyst, 2% platinum. CAS: 68585-32-0. Chloroiridic acid crystal (CIA) Ir-114 ... Gold chemicals Gold chemicals Iridium chemicals Iridium chemicals Osmium chemicals Osmium chemicals Palladium chemicals Palladium ... organic Platinum chemicals Platinum chemicals Rhenium chemicals Rhenium chemicals Rhodium chemicals Rhodium chemicals ...
The presence of iridium or rhenium has been shown to increase octane number and to improve catalyst life [ 6-10 ] . The role played by the second element on …
In our Institute, we started to study this sort of catalyst a few years ago with the platinum-rhenium (2, 3, 4) and platinum-iridium systems in collaboration with the Laboratory of Organic Catalysis at the University of Poitiers, and more recently with the platinum-ruthenium system, in collaboration with the French Institute of Petroleum . One ...
Ruthenium, osmium, and iridium are considered the minor platinum group metals.  Ruthenium, like the other platinum group metals, is obtained commercially as a by-product from nickel, and copper, and platinum metals ore processing.
Aug 13, 2012· Advanced Monopropellants Combustion Chambers and Monolithic Catalyst for Small ... R. LaFerla, R.H. Tuffias – Iridium and rhenium coated carbon foam, ceramic foams, 1988-1993 C. Kappenstein - Alumina coated ceramic honeycomb and ... Iridium Microcrystal Catalyst Innovative technique for
Rhenium in the form of rhenium-platinum alloy is used as catalyst for catalytic reforming, which is a chemical process to convert petroleum refinery naphthas with low octane ratings into high-octane liquid products. Worldwide, 30% of catalysts used for this process contain rhenium.
Catalytic Activity of Platinum Monolayer on Iridium and Rhenium Alloy Nanoparticles for the Oxygen Reduction Reaction Article in ACS Catalysis 2(5):817 · March 2012 with 285 Reads
Full Paper Catalytic Hydrodeoxygenation of High Carbon Furylmethanes to Renewable Jet-fuel Ranged Alkanes over a Rhenium Modified Iridium Catalyst
Catalysis Ultramet fabricates advanced catalysts and catalyst supports for demanding environments that require high temperature capability. ... Rhenium, 5756°F (3180°C) Ductility, strength at temperature, no hydrogen embrittlement ... Platinum generally offers better oxidation resistance than iridium, but iridium has a higher melting point ...
The product may be used to prepare cyclometalated iridium coumarin complexes, to be used as probes for sensing optical oxygen. It may also be used as a source of Ir …
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