High-temperature oxidation of europium (II) sulfide

被引：17

作者：

Denisenko, Yuriy G. ^{[1
,2
]}

Molokeev, Maxim S. ^{[3
,4
,5
]}

Krylov, Alexander S. ^{[6
]}

Aleksandrovsky, Aleksandr S. ^{[7
,8
]}

Oreshonkov, Aleksandr S. ^{[4
,6
]}

Atuchin, Victor V. ^{[9
,10
,11
]}

Azarapin, Nikita O. ^{[1
]}

Plyusnin, Pavel E. ^{[12
]}

Sal'nikova, Elena I. ^{[1
,13
]}

Andreev, Oleg V. ^{[1
]}

机构：

[1] Tyumen State Univ, Dept Inorgan & Phys Chem, Tyumen 625003, Russia

[2] Ind Univ Tyumen, Dept Gen & Special Chem, Tyumen 625000, Russia

[3] Fed Res Ctr KSC SB RAS, Lab Crystal Phys, Kirensky Inst Phys, Krasnoyarsk 660036, Russia

[4] Siberian Fed Univ, Krasnoyarsk 660041, Russia

[5] Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia

[6] Kirensky Inst Phys Fed Res Ctr KSC SB RAS, Lab Mol Spect, Krasnoyarsk 660036, Russia

[7] Kirensky Inst Phys Fed Res Ctr KSC SB RAS, Lab Coherent Opt, Krasnoyarsk 660036, Russia

[8] Siberian Fed Univ, Inst Nanotechnol Spect & Quantum Chem, Krasnoyarsk 660041, Russia

[9] SB RAS, Lab Opt Mat & Struct, Inst Semicond Phys, Novosibirsk 630090, Russia

[10] Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia

[11] Kemerovo State Univ, Dept Res & Dev, Kemerovo 650000, Russia

[12] Nikolaev Inst Inorgan Chem SB RAS, Lab Chem Rare Platinum Met, Novosibirsk 630090, Russia

[13] Northern Trans Ural Agr Univ, Dept Gen Chem, Tyumen 625003, Russia

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2019年 / 79卷

基金：

俄罗斯科学基金会;

关键词：

Sulfur-containing europium compounds; High-temperature oxidation; Thermal analysis; X-ray diffraction; Crystal structure; Photoluminescence; THERMAL-DECOMPOSITION; PHOTOLUMINESCENCE PROPERTIES; SPECTROSCOPIC PROPERTIES; EU3+ LUMINESCENCE; OXYGEN STORAGE; LANTHANIDE OXYSULFATE/OXYSULFIDE; HYDROTHERMAL SYNTHESIS; CRYSTAL-STRUCTURE; SULFATE; EXPLORATION;

D O I：

10.1016/j.jiec.2019.05.006

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The process of high-temperature oxidation of EuS in the air was explored in the temperature range of 500-1000 degrees C. The oxidation reaction enthalpy was determined (Delta H-exp(0) = -1718.5 kJ/mol. The study of oxidation products allowed to establish the mechanism of EuS oxidation with oxygen. At 500-600 degrees C, EuS is oxidized to a mixture of Eu3+-containing compounds (Eu3S4, Eu2O2S). In the range of 700-1000 degrees C, only europium oxysulfate Eu2O2SO4 is formed. The structure refinement for Eu2O2SO4 was performed by the Rietveld method. The luminescence intensity of europium oxysulfate Eu2O2SO4 with characteristic 4f-4f transitions from the D-5(0) state was investigated as a function of oxidation temperature. (C) 2019 Published by Elsevier B.V. on behalf of The Korean Society of Industrial and Engineering Chemistry.

引用

页码：62 / 70

页数：9

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