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. X. Characterization of Pt—M Catalysts (M: Fe, Co, Ni)Characterization of carrier-free Pt—M bimetallic catalysts with regard to their phase structure and dispersity were performed with X-Ray powder methods, magnetic investigations, and measurements of dispersity (adsorption of N2, chemisorption of CO, oxygen-hydrogentitration), respectively.The phase structure of the powders is characterized by considerable deviation from the informations on macro crystallites in thermodynamic equilibrium. A. close correlation is given between phase structure and dispersity of the metallic components.
Notes:
Die Charakterisierung trägerfreier Pt—M-Bimetallkatalysatoren (M: Fe, Co, Ni) erfolgte mittels Röntgenphasenanalyse, magnetischer Resonanzuntersuchungen sowie Dispersitätsmessungen (N2-Physisorption, CO-Chemiscorption, Sauerstoff—Wasserstoff-Titration).Die Phasengestaltung der Legierungspulver zeigt teilweise erhebliche Abweichungen von den Angaben für Makrokristalle im thermodynamischen Gleichgewicht. Es besteht ein enger Zusammenhang zwischen Phasengestaltung und Metalldispersität.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19774310119
