Introduction: An enigma of Venusian mineralogy is the suggestion that Fe3+bearing minerals exist under the reducing conditions of the Venusian atmosphere. Analysis of the spectrophotometric data from the Venera 13 and 14 missions, combined with the laboratory reflectance spectral measurements of oxidized basalts at elevatedtemperatures, led to the suggestion that metastable hematite might exist...

The phase composition, magnetic state of the phases and their influence on formation hysteresis properties nanocomposite with (Fe 0.85 Mn 0.10 Ni 0.05 ) 83 C 17 composition after mechanosynthesis subsequent annealing have been studied. It is shown that, although dependences coercive force temperature H_c(T ann alloy, measured at room liquid nitrogen temperatures, are curves maxima, H c driven b...

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...

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...

Intermetallic compounds of Dy2Fe16Ga1−xNbx (x = 0.0 to 1.00) were synthesized by arc melting. Samples investigated for structural, magnetic, and hyperfine properties using X-ray diffraction, vibration sample magnetometer, Mossbauer spectrometer, respectively. The Rietveld analysis room temperature diffraction data shows that all the samples crystallized in Th2Fe17 structure. unit cell volume al...

Heterojunction catalysts have drawn increasing interest for the visible light-driven Fenton reaction and bring tremendous opportunities environmental remediation. Herein, a BiOI/MIL-53(Fe) Z-scheme heterojunction (named BMFe) was synthesized first time via facile strategy. Compared with pristine BiOI MIL-53(Fe) catalysts, two-dimensional/three-dimensional (2D/3D) catalyst manifested remarkable ...