Preparation of Ln2O2S (Ln = Gd, Dy, Y, Er, Lu) in flowing hydrogen and hydrogen sulfide

被引：0
|
作者：
P. O. Andreev
E. I. Sal’nikova
I. M. Kovenskii
机构：
[1] Tyumen State Oil and Gas University,
[2] Northern Transurals State Agrarian University,undefined
[3] Tyumen State University,undefined
来源：
Inorganic Materials | 2014年 / 50卷
关键词：
Hydrogen Sulfide; Oxysulfide; Reaction Zone Temperature; Rare Earth Oxysulfide; Rare Earth Nitrate Solution;
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摘要：
The exposure of anhydrous Ln2(SO4)3 (Ln = Gd, Dy, Y, Er, Lu) sulfates to flowing hydrogen in the range 500–1050°C leads to the formation of Ln2O2S + Ln2O3 materials. With increasing reaction temperature, the mole fraction of Ln2O2S in the samples decreases. Single-phase Ln2O2S (Ln = Gd, Dy, Y, Er, Lu) compounds have been obtained by exposing the rare-earth sulfates first to flowing hydrogen in the range 500–600°C and then to hydrogen sulfide in the range 850–950°C.
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页码：1018 / 1023
页数：5
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