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Synthesis and Catalytic Properties of Iron Oxides in the Reaction of Low-Temperature Ozone Decomposition

100%

Rakitskaya T., Truba A., Ennan A., Baumer V., Volkova V.

Acta Physica Polonica A

2018

vol. 133

issue 4

1079-1083

Two sets of iron oxide samples were synthesized applying different iron(III) precursors (FeCl₃ and Fe₂(SO₄)₃) and calcination temperature (200, 300, and 500°C). The samples were characterized by powder X-ray analysis and the Fourier transform infrared spectroscopy. Depending on the synthesis conditions, samples of iron oxides with different phase composition were obtained: polyphase (α -Fe₂O₃, γ -Fe₂O₃, Fe₃O₄, and α -FeO(OH)) and monophase (γ -Fe₂O₃ or α -Fe₂O₃) ones. For the samples of homogeneous composition, it has been found that the activity of γ -Fe₂O₃ in the reaction of ozone decomposition at ozone concentration in gaseous phase of 1 mg/m³ is much higher than the activity of α -Fe₂O₃.

Mechanical Properties and Lattice Parameters of Lu_{2x}Gd_{2(1-x)}SiO_{5}:Ce Scintillation Crystals

86%

Maksimchuk V., Baumer V., Bondar V., Galich Y., Kurtsev D., Sidletskiy O.

issue 1

146-149

Structural and mechanical characteristics of complex oxide compounds Lu_{2x}Gd_{2-2x}SiO_{5}:Ce (LGSO) crystals were studied at different cation ratio in the host. For this purpose, a series of LGSO crystals with Lu concentration 5-70 at.% has been grown by the Czochralski method. Anisotropy of mechanical properties for these materials has been studied. The obtained results can be useful at choice of optimal growth direction for crystals and at mechanical processing of scintillation elements.

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2 Acta Physica Polonica A

1 2018

1 2010

2 Baumer V.

1 Bondar V.

1 Ennan A.

1 Galich Y.

1 Kurtsev D.

1 Maksimchuk V.

1 Rakitskaya T.

1 Sidletskiy O.

1 Truba A.

1 Volkova V.

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Synthesis and Catalytic Properties of Iron Oxides in the Reaction of Low-Temperature Ozone Decomposition

Mechanical Properties and Lattice Parameters of Lu_{2x}Gd_{2(1-x)}SiO_{5}:Ce Scintillation Crystals