The electron donating properties, surface acidity/basicity and catalytic activity of lanthana for various dopaut concentrations of strontium are reported at two activation temperatures. The catalytic activity has been correlated with electron donating properties and surface acidity/basicity of the oxide.

Cellular Biochemistry and Biophysics Program, Molecular Biology Program, SloanKettering Institute, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, Department of Biochemical and Analytical Pharmacology, GlaxoSmithKline Inc., Research Triangle Park, NC 27709, Graduate Program in Physiology, Biophysics and Molecular Medicine, Weill Graduate School of Medical Science of Cornell Universi...

Selenophosphate synthetase, the product of the selD gene, produces the biologically active selenium donor compound, monoselenophosphate, from ATP and selenide. Isolation of the enzyme and characterization of some of its physical and catalytic properties are described. Magnesium ion and a monovalent cation, K+, NH4+, or Rb+, are required for catalytic activity. Polyphosphates and other common nu...

Gold clusters and nanoparticles have attracted continuous attention due to interesting and important electronic, catalytic and optical properties [1,2]. As the chemical environment strongly affects the catalytic properties, an understanding of this is essential to be able to control these properties. In order to study the influence of the ligand shell on the catalytic properties we have studied...

LaMnO3 and LaMnO3/ZSM-5 nano catalysts were synthesized by Pechini method and their physical-chemical properties were characterized using XRD, FTIR, SEM-EDX, UV-vis DRS, BET surface area and TPR. The correlation between characteristic properties and activity of catalysts were investigated. The catalytic performance of the catalysts was evaluated in combustion of 2-propanol...

   The mixed metal nanocomposite MgO∙Al2O3∙ZnO has been prepared by coprecipitation method. The product was characterized by XRD. The average particle size was found to be 34.89 nm from XRD data. SEM and SEM-EDS were studied for evaluating surface morphology and elemental composition. The FTIR spectrum of prepared mixed metal nanocomposites MgO∙Al2O3</s...

in this work firstly fe3o4 nanoparticles were synthesized via a sono-chemical method. at the second step magnesium hydroxide shell was synthesized on the magnetite-core under ultrasonic waves. for preparation fe3o4-mgo the product was calcinated at 400 ºc for 2h. properties of the product were examined by x-ray diffraction pattern (xrd), scanning electron microscope (sem) and fourier transform ...

BiFeO3 (BFO), Bi0.86Sm0.07Eu0.07FeO3 (BSEFO), and Bi0.86Sm0.07Cd0.07FeO3 (BSCFO) nano powders were prepared by the sol-gel combustion method and the catalytic performances were evaluated in the acetylation reaction of benzyl alcohol. The physical chemical properties of the catalysts were character...