Phase formation in the Ag2MoO4-CoMoO4-Al2(MoO4)3 system |
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| Authors: | I. Yu. Kotova |
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| Affiliation: | 1. Baikal Institute of Environmental Management, Siberian Branch, Russian Academy of Sciences, ul. Sakh’yanovoi 6, Ulan-Ude, 670047, Russia
2. Buryat State University, ul. Smolina 24a, Ulan-Ude, 670000, Russia
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| Abstract: | The subsolidus region of the Ag2MoO4-CoMoO4-Al2(MoO4)3 ternary salt system was studied by X-ray powder diffraction analysis. New compounds Ag1?x Co1?x Al1 + x (MoO4)3 (0 ≤ x ≤ 0.4) and AgCo3Al(MoO4)5 were detected to form. The variable-composition phase Ag1?x Co1?x Al1 + x (MoO4)3 is of the NASICON structure type (space group (Rbar 3c) ). AgCo3Al(MoO4)5 crystallizes in the triclinic symmetry (space group (Pbar 1) Z = 2) with the unit cell parameters a = 6.9101(6), b = 17.519(1), c = 6.8241(6) Å, α = 87.356(7)°, β = 101.078(7)°, and γ = 91.985(9)°. The compounds are thermally stable until 770–780 and 760°C, respectively. |
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