Download or read book Hydrogenation of Ethylene Over Platinum Platinum tantalum and Platinum aluminum Alloy Catalysts written by Chi-Hwa Tsang and published by . This book was released on 1983 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalytic Hydrogenation over Platinum Metals written by Paul Rylander and published by Elsevier. This book was released on 2012-12-02 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalytic Hydrogenation over Platinum Metals focuses on catalytic hydrogenation as an effective process in attaining controlled transformations of organic compounds. Composed of contributions of various authors, the book first provides information on catalysts, equipment, and conditions. Catalyst stability and reuse; types of catalyst; platinum metals; and synergism are covered. The text proceeds with discussions on hydrogenation reactors. Topics include atmospheric pressure reactors; low pressure reactors; microreactors; and high pressure reactors. The book also covers hydrogenation of carbon-carbon unsaturation. Catalytic metal; modified catalyst systems; stereochemistry; diacetylenes; and hydrogenolysis are discussed. The text also looks at the hydrogenation of aromatics, nitrogen and carbonyl compounds, and hydrogenolysis. Numerical representations and analysis, diagrams, and reactions of compounds when exposed to different laboratory conditions are considered. The selection is a great source of data for readers interested in studying the process of catalytic hydrogenation.

Download or read book The Hydrogenation of Ethylene Using a Platinum alumina Catalyst Prepared by Chemical Vapor Deposition written by Irvin Atla Jefcoat and published by . This book was released on 1973 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Microcatalytic Study of Ethylene Hydrogenation Over Platinum and Alumina supported Platinum Catalysts written by Nancy Belle Lowery and published by . This book was released on 1970 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Isotopic Tracing Studies and Microkinetic Analysis of Ethylene Hydrogenation Over Platinum Catalysts written by Scott A. Goddard and published by . This book was released on 1991 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Interaction of Hydrogen and Oxygen Over Platinum Supported on Silica Gel Catalysts written by Francis Vern Hanson and published by . This book was released on 1975 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Comparative Study of the Kinetics of the Ethylene Hydrogenation Reaction Over Platinum and Alumina supported Platinum Catalysts written by Hollis Michael Whitehead and published by . This book was released on 1966 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Structural Sensitivity Studies of Ethylene Hydrogenation on Platinum and Rhodium Surfaces written by and published by . This book was released on 1996 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: The catalytic hydrogenation of ethylene and hydrogen on the well characterized surfaces of the noble metals platinum and rhodium has been studied for the purposes of determining the relative activity of these two substrates as well as the degree of structure sensitivity. The Pt(111) and the Rh(755) single crystal surfaces, as well as Pt and Rh foils, were employed as substrates to study the effect of surface step structure on reactivity. In addition, vibrational spectroscopy studies were performed for ethylene adsorption on the stepped Rh(755) surface. The catalytic reaction were obtained using a combined ultrahigh vacuum chamber coupled with an atmospheric pressure reaction chamber that functioned as a batch reactor. Samples could be prepared using standard surface science techniques and characterized for surface composition and geometry using Auger Electron Spectroscopy and Low Energy Electron Diffraction. A comparison of the reactivity of Rh(111) with the results from this study on Rh(755) allows a direct determination of the effect of step structure on ethylene hydrogenation activity. Structure sensitivity is expected to exhibit orders of magnitude differences in rate as surface orientation is varied. In this case, no significant differences were found, confirming the structure insensitivity of this reaction over this metal. The turnover frequency of the Rh(111) surface, 5 x 101 s−1, is in relatively good agreement with the turnover frequency of 9 x 101 s−1 measured for the Rh(755) surface. Rate measurements made on the Pt(111) surface and the Pt foil are in excellent agreement, both measuring 3 x 102 s−1. Likewise, it is concluded that no strong structure sensitivity for the platinum surfaces exists. High Resolution Electron Energy Loss Spectroscopy studies of adsorbed ethylene on the Rh(755) surface compare favorably with the ethylidyne spectra obtained on the Rh(111) and Rh(100) surfaces.

Download or read book Hydrogenation of Ethylene Over Platinum Single Crystal Surfaces written by Arthur Leonard Backman and published by . This book was released on 1987 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1989 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts International written by and published by . This book was released on 1986 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrogenation of Deactivated Carbonyls Over Platinum Group Metal Catalysts written by Johanne Carmichael and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalytic Hydrogenation Over Platinum Materials written by Paul Nels Rylander and published by . This book was released on 1967 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Kinetics and Effectiveness Factors for the Hydrogenation of Propylene on a Platinum alumina Catalyst written by Robert Humphrey Shabaker and published by . This book was released on 1965 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Addition of Ceria on Platinum Supported on Carbon Materials in the Hydrogenation of Ethylene written by Audacity Maringa and published by . This book was released on 2011 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reactivity and Stability of Platinum and Platinum Alloy Catalysts Toward the Oxygen Reduction Reaction written by Sergio Rafael Calvo and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Density functional theory (DFT) is used to study the reactivity of Pt and Pt-M (M: Pd, Co, Ni, V, and Rh) alloy catalysts towards the oxygen reduction reaction (ORR) as a function of the alloy overall composition and surface atomic distribution and compared to that on pure Pt surfaces. Reactivity is evaluated on the basis of the adsorption strength of oxygenated compounds which are intermediate species of the four-electron oxygen reduction reaction, separating the effect of the first electron-proton transfer from that of the three last electron-proton transfer steps. It is found that most homogeneous distribution PtxM catalysts thermodynamically favor the dissociation of adsorbed OOH in comparison with pure Platinum and adsorb strongly O and OH due to the strong oxyphilicity of the M elements. On the other hand, in all cases skin Platinum surfaces catalysts do not favor the dissociation of adsorbed OOH and do favor the reduction of M-O and M-OH with respect to Platinum. Considering the overall pathway of the reactions to catalyze the ORR most of the skin Platinum monolayer catalysts provide more negative free energy changes and should behave at least in a similar way than Platinum in following order: Pt3V (skin Pt)> Pt3Co (skin Pt)> Pt3Ni (skin Pt)> Pt> PtPd (skin)> Pt4Rh (skin Pt)> PtPd3 (skin). In all cases, the reactivity is shown to be not only sensitive to the overall composition of the catalyst, but most importantly to the surface atomic distribution. Proposed electrochemical dissolution reactions of the catalyst atoms are also analyzed for the ORR catalysts, by computing the free energy changes of Platinum and bimetallic Pt-X (X: Co, Pd, Ni, and Rh) catalysts. It is found that Platinum is thermodynamically more stable than Pt-alloys in Pt3Co, Pt3Pd, Pt3Ni and Pt4Rh.

Download or read book The Gas phase Hydrogenation of Butyronitrile Over Supported Platinum Catalysts written by Scott Tomlinson McMillan and published by . This book was released on 1985 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt: