Electrochemical promotion by potassium of the selective hydrogenation of acetylene on platinum: Reaction studies and XP spectroscopy

WILLIAMS, F J; PALERMO, A; TRACEY, S; TIKHOV, M S; LAMBERT, R M

JOURNAL OF PHYSICAL CHEMISTRY B - (Print)

AMER CHEMICAL SOC

Año: 2002 vol. 106 p. 5668 - 5672

1520-6106

In the partial hydrogenation of acetylene, potassium, pumped to a thin film Pt catalyst from the electro-active support K 􏱆′′-alumina, very strongly promotes ethylene formation. In the best case, K-promotion increases ethylene selectivity from