Ceria–Zirconia-Supported Ruthenium Catalysts for Hydrogen Production by Ammonia Decomposition

CO x Free Hydrogen Production by Catalytic Decomposition of Methane Over Porous Ni/Al2O3 Catalysts

Cobalt-based Catalysts for Ammonia Decomposition

An effect of promoters such as calcium, aluminium, and potassium oxides and also addition of chromium and manganese on the structure of cobalt catalysts was examined. Studies of the catalytic ammonia decomposition over the cobalt catalysts are presented. The studies of the ammonia decomposition were carried out for various ammonia-hydrogen mixtures in which ammonia concentration varied in the r...

Kinetic Analysis of Decomposition of Ammonia over Nickel and Ruthenium Catalysts

The present study investigates the decomposition of ammonia (NH3) over Ni and Ru catalysts using a kinetic model based on a reaction mechanism consisting of kinetically important elementary steps. Experimental results obtained over a wide range of reaction conditions were reproduced by the model. Recombinative N2 desorption was the rate-limiting step on the Ru catalyst; whereas, the overall rat...

Ordered mesoporous carbons as highly active catalysts for hydrogen production by CH(4) decomposition.

Ordered mesoporous carbons have been applied, for the first time, as catalysts for hydrogen production via methane decomposition, showing higher and more stable activity than commercial carbonaceous catalysts.

Structure Sensitivity of Reactions between Cyclopropane and Hydrogen on Supported Ruthenium Catalysts

Reaction (1) is called “hydrogenation,” reaction (2) “selective hydrocracking,” and reaction (3) “nonselective hydrocracking.” On Pd, It-, and Pt only reaction (1) is observed, while Co, Rh, and OS are active for reactions (1) and (2), and Fe, Ni, and Ru are able to catalyze all three reactions (I-5). The structure sensitivity of the three cyclopropane reactions on Ru catalysts has not yet been...