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- Terebilenko, Kateryna V., et al.
(författare)
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Structural transformation of Bi1-x/3V1-xMoxO4 solid solutions for light-driven water oxidationt
- 2016
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Ingår i: Dalton Transactions. - : Royal Society of Chemistry (RSC). - 1477-9226 .- 1477-9234. ; 45:9, s. 3895-3904
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Tidskriftsartikel (refereegranskat)abstract
- The influence of molybdenum content in the solid solutions of Bi1-x/V-3(1-x),MoxO4 (x = 0.05-0.20) on the morphology, band gap, structure and light -driven water oxidation properties has been studied by scanning electron microscopy, X-ray powder diffraction and vibrational spectroscopy (Raman and infrared). To find out the peculiarities of structural changes for bismuth scheelite-related oxides containing both vanadium and molybdenum crystals of Bi0.98V0.93M0.07O4 have been grown from a K-Bi V-Mo-high-temperature melt and characterized by single crystal X-ray diffraction. For the scheelite-related framework both V and Mo were found to occupy the same positions lowering the point group symmetry of tetrahedra from 4/m to 2/m giving monoclinic distortion for solid solutions with x = 0.05----0.10. The most promising photocatalytic performance was obtained for Bi0.96Mo0.1V0.5004, in which the oxygen evolution could reach 21 mu M in 50 s under visible light of LEDs, lambda = 470 +/- 10 nm, and 820.E cm(-2) s(-1). The changes in catalytic properties are shown to be governed by a crystal structure strain with a maximum obtained for the boundary sample between the monoclinic and tetragonal phase.
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- BYCHKOV, V, et al.
(författare)
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HYDRODYNAMIC INSTABILITIES OF THE FLAME FRONT IN WHITE-DWARFS
- 1995
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Ingår i: ASTRONOMY AND ASTROPHYSICS. - : SPRINGER VERLAG. - 0004-6361. ; 302:3, s. 727-734
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The exact analytical solution for the hydrodynamic instability growth rates of the flame front propagating in a gravitational field is obtained for the case of an arbitrary equation of state of the burning matter. The obtained solution is applied to the p
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