The Uses of Deuterium in the Study of Heterogeneous Catalysis
Titel:
The Uses of Deuterium in the Study of Heterogeneous Catalysis
Auteur:
Burwell, Robert L.
Verschenen in:
Catalysis reviews
Paginering:
Jaargang 7 (1972) nr. 1 pagina's 25-49
Jaar:
1972
Inhoud:
The discovery and isolation of deuterium in 1932 was followed almost immediately by applications to the study of heterogeneous catalysis which appeared in the classical papers of A. and L. Farkas, of Taylor and Morikawa, and of Horiuti and Polanyi. These were primarily studies of isotopic exchange between various hydrides and deuterium, e.g., between methane and deuterium, and between water and deuterium. These investigations provided, for the first time, secure information about the ease of bond cleavage and formation in hydrides: that the bond in H, was cleaved a t a detectable rate on many metals and on chromium oxide at the temperature of liquid air; that on metals the bonds in ammonia and water were readily cleaved although less easily than the H-H bond; that on nickel, for example, C-H bonds were usually more readily cleaved than C-C bonds; and that the rate of cleavage of C-H was in the order methane < ethane < pro-pane.
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