LaSrNiO4-lambda with K2NiF4 structure - A highly active catalyst for direct decomposition of nitrogen monoxide

A series of perovskite-like mixed oxides La(2-x)Sr(x)MO(4+lambda) (M=Cu, Co,Ni; x=0,1) was prepared and characterized using X-ray powder diffraction. The catalytic properties of these catalysts in NO decomposition were tested. The results showed that LaSrNiO4-lambda with K2NiF4 structure is very active and stable for the decomposition of NO.

A Study on the Unimolecular Decomposition of the Doubly Charged Ions Produced from 4 Chloro-toluene Isomers

The unimolecular charge separations and neutral loss decompositions of the doubly charged ions [C7H7Cl](2+), [C7H6Cl](2+) and [C7H5Cl](2+) produced in the ion source by 70 eV electron impact from 3 chloro-toluenes and benzyl chloride isomers were studied

RESEARCH ON THE THERMAL-DECOMPOSITION OF THE BIOINORGANIC COMPLEX OF EUROPIUM AND L-GLUTAMINE BY MOSSBAUER-SPECTROSCOPY

Mossbauer spectroscopy has been used to investigate the thermal decomposition of the bioinorganic complex of europium and L-glutamine. The Mossbauer parameters can demonstrate that the water molecules in the complex and the chlorine anion in the hydrogen chloride molecule, dissociated from the complex below 200-degrees-C, are not linked directly to the europium atom. The thermal decomposition process of the complex is discussed and a possible coordination model for the europium L-glutamine complex is also proposed on the basis of the thermogravimetric and derivative thermogravimetric curves, and from some evidence obtained from the Mossbauer effects of some decomposition products of the complex.

Nitridation of magnesium powder of nanometric size from the thermal decomposition of magnesium anthracene

Highly reactive magnesium powder of nanometric size, which was generated by the thermal decomposition of magnesium anthracene . 3THF under vacuum, can react with N-2 under atmospheric pressure, even at 300 degrees C, to form magnesium nitride. The rate and extent of the reaction can be improved effectively by doping the magnesium powder with a small amount of nickel or titanium compounds.

Ag-ZSM-5 catalyst for the catalytic decomposition of NO

The catalytic decomposition of NO over Ag-ZSM-5 catalyst prepared by ion-exchange was investigated. The exchanged silver in the zeolite was reduced and it collected in the course of the reaction to form silver particles of about 20 nm. The catalytic reaction induced a pronounced restructuring of the Ag particles through preferential formation of the (111) facets. These facets were shown to hind a tightly bound oxygen species (O-gamma). The O-gamma species occupies the active sites for NO adsorption resulting in catalyst deactivation. It could be removed by appropriate reducing agents, such as CO, to recover the active sites at elevated temperatures.