N. Ohji et al., NICKEL INCORPORATED INTO ANODIC POROUS ALUMINA FORMED ON AN ALUMINUM WIRE, Journal of the Chemical Society. Faraday transactions, 90(9), 1994, pp. 1279-1284
Citations number
20
Categorie Soggetti
Chemistry Physical","Physics, Atomic, Molecular & Chemical
Porous alumina films have been prepared on the surface of an aluminium
wire by anodic oxidation in an oxalic acid electrolyte. The pore size
could be controlled by the anode potential, and the thickness of the
alumina film was a function of the anodizing time as well as the anode
potential used. Silica powders containing finely divided Ni metal par
ticles were incorporated into the micropores of the alumina films, whi
ch were then used as wire catalysts. The wire catalyst did not require
any supplementary heating during catalytic reactions, since after 1 m
in of applying a small voltage across the ends of the wire, a temperat
ure of 573 K could be reached. The catalytic performance of the nickel
particles mounted in the aluminium wires for the hydrogenation of but
-1-ene was measured and compared with that of a conventional supported
-nickel catalyst.