The aim of this work is the reduction and decoration graphene oxide (GO) with magnesium (MgO). In work, GO was synthesized using modified Hummers’ protocol (1:2), (1:3) (1:4) graphite:potassium permanganate mass ratios. Subsequently, all samples (GO1:2, GO1:3, GO1:4) were reduced decorated nanoparticles a reflux technique at 100 °C for 2 h. Sample characterization X-ray diffraction (XRD) reveal...

In this study, we describe the growth of carbon nanotubes on commercial iron nanoparticles without carbon shell (Fe (nm), size 2O3 and Fe* (nm)/MgO) was carried out by mixing commercial Fe* nanoparticles (as catalyst) with Al2O3 and MgO powders (as supports)by using ball-milling method. The results show in spite of the fact that ball-milling process can have neg...

Epitaxial Pt(001) thin films have been grown on MgO(001) substrates using dc magnetron sputtering with an Ar/0 2 mixture at 700'C. The width (FWHM) of the rocking curve of the Pt(002) peak is between 0.160 and 0.200, which is only 0.05' wider than that of the MgO (002) peak of the cleaved substrate. The film surface roughness is about 1 nm (rms) for a 240 nm thick Pt film. No grain structure co...

In this study, we describe the growth of carbon nanotubes on commercial iron nanoparticles without carbon shell (Fe (nm), size 2O3 and Fe* (nm)/MgO) was carried out by mixing commercial Fe* nanoparticles (as catalyst) with Al2O3 and MgO powders (as supports)by using ball-milling method. The results show in spite of the fact that ball-milling process can have neg...

Short Range Order (SRO) i n c e r t a i n s o l i d so lu t ions can be measured d i r e c t l y from observed EXAFS s t r u c t u r e f u n c t i o n peak areas. Results f o r MgO-FeO, MgO-Li FeO2, and CaMgSi O6 ~ a ~ e 2 + ~ i ~ 0 ~ so lu t ions i n d i c a t e t h a t these are almost completely d i sordere5 a t t h e i r synthesis temperatures. The necessi ty o f s t r u c t u r a l modelin...

The reaction kinetics of the isomerization 3,4-dichlorobutene-1 to 1,4-dichlorobutene-2 was investigated by using gas-liquid chromatography method in the presence of Fe2O3/MgO as solid catalyst in the temperature range 25-55°C. Fe2O3/MgO has been prepared by the support saturation method, tested in the isomerization of 3, 4-dichlorobutene-1 into 1, 4-dichlorobutene-2. This catalyst shows a high...

Pd/MgO, Pd/MgF₂ and Pd/MgO-MgF₂ catalysts were investigated in the reaction of CCl₄ hydrodechlorination. All the catalysts deactivated in time on stream, but the degree of deactivation varied from catalyst to catalyst. The MgF₂-supported palladium with relatively large metal particles appeared the best catalyst, characterized by good activity and selectivity to C₂-C₅ hydrocarbons. Investigation...