The hydrogenation of akladienes. Part IV. The reaction of buta-1,3-diene with deuterium catalysed by rhodium, palladium, and platinum
- 1 January 1970
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 2435-2441
- https://doi.org/10.1039/j19700002435
Abstract
Reactions of buta-1,3-diene with deuterium have been investigated by use of alumina-supported rhodium (100 °C) palladium (17 °C), and platinum (20 °C) as catalysts. Reaction mechanisms are discussed in terms of the two general schemes presented in Part III. The three isomeric n-butenes are each formed by the processes C4X6(ads)+ X(ads)⇌ C4X7(ads) and C4X7(ads)+ X(ads)→ C4X8 where X = H or D. Butene isomerisation before desorption does not occur even though adsorbed butyl groups (intermediates in n-butane formation) were formed at the rhodium or platinum surfaces. In each reaction 50% or more of each butene is formed by the stepwise addition of two X-atoms, but sites also exist at which fast multiple exchange takes place. The sites at which butane is formed may be distinct from those at which butene formation occurs.Keywords
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