Accounting for the different contributions of aromatic rings, separated with sp 3 bonds, ab initio method we constructed hybrid cluster C 73 H 74 which UV spectrum matches most noticeable absorption band 217.5 nm, known from astrophysical observations Keywords: interaction light matter, new forms carbon, interstellar medium.

Magnesium is considered as a potential material for the separation of hydrogen from different gas streams (CH4/H2, syngas, natural gas, etc.). Herein, an elemental mixture Mg and Ni (5 wt%) used selective absorption CH4/H2 (90:10) at 350 °C. The performed studies (X-ray diffraction, thermogravimetric analysis, differential scanning calorimetry, chromatography) show that analyzed absorbs 4.5 wt%...

Spinel MgAl2O4  nanopowders were synthesized by one-step solid state reactions using Al(NO3)3.9H2O and MgSO4 raw materials at stoichiometric 1 : 2, Mg : Al molar ratio at a constant reaction temperature of 1000 ºC for 8 h (S1), 10 h (S2) and  24 h (S3). The synthesized materials were characterized...

We explore the parameter space for contribution to Callisto's H corona observed by Hubble Space Telescope (Roth et al. 2017a) from sublimated H2O and radiolytically produced H2 using Direct Simulation Monte Carlo (DSMC) method. The spatial morphology of this via photo- magnetospheric electron impact-induced dissociation is described tracking motion simulating collisions between hot atoms therma...