ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Investigations on Metal Catalysts. I. Structural and Catalytical Investigations on Palladium-Silver PowdersSeveral conditions for preparation of palladium-silver powders are described. By choice of suitable preparation metal crystallites were obtained, in which exists a gradient of concentration with respect to the metals. This gradient determines the behaviour of sorption and catalytical activity, respectively.Characterization of catalysts with regard to their structure takes place by means of X-ray measurements and investigations of sorption (adsorption of N2, chemisorption of CO, sorption of H2), respectively. The catalytical activity of alloys has been measured by means of hydrogenation of benzene.
Notes:
Es werden verschiedene Präparationsbedingungen pulverförmiger Pd-Ag-Katalysatoren beschrieben. Durch Wahl geeigneter Herstellungsverfahren läßt sich in den Metallkristalliten ein Konzentrationsgradient erzeugen, der das Sorptionsverhalten der Legierungen sowie ihre katalytische Aktivität bestimmt.Die Charakterisierung der Proben erfolgte durch Röntgenuntersuchungen sowie Sorptionsmessungen (N2-Adsorption, CO-Chemisorption, Wasserstoffsorption); das katalytische Verhalten der Legierungen wurde mittels der Benzolhydrierung ermittelt.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19744050304
Permalink
