XAS study of murataite-based ceramics and crystalline film of ThO2

被引：0

作者：

Putkov, Andrei E. ^{[1
,2
]}

Teterin, Yury A. ^{[1
,2
]}

Trigub, Alexander L. ^{[2
]}

Yudintsev, Sergey V. ^{[3
,4
]}

Stefanovskaya, Olga I.

Ivanov, Kirill E. ^{[2
]}

Kalmykov, Stepan N. ^{[1
]}

Petrov, Vladimir G. ^{[1
]}

Frumkin, A. N.

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia

[2] Kurchatov Inst, Natl Res Ctr, Moscow 123182, Russia

[3] Inst Geol Ore Deposits Petrog Mineral & Geochem, Moscow 119017, Russia

[4] Russian Acad Sci, AN Frumkin Inst Phys Chem & Electrochem, Moscow 119071, Russia

来源：

MENDELEEV COMMUNICATIONS | 2023年 / 33卷 / 01期

关键词：

EXAFS spectroscopy; murataite-based ceramic; thorium dioxide; crystal film; disposal of nuclear waste;

D O I：

10.1016/j.mencom.2023.01.043

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The local environment of thorium in murataite ceramics (Al,Ca,Ti,Mn,Fe,Zr,Th)O-x and ThO2(001) crystalline film on Si(100) substrate as a reference was explored by X-ray absorption spectroscopy (XAS) for the first time. It was found that Th4+ is located in the center of a cube formed by 8 oxygen atoms [r(Th-O) = 2.37 +/- 0.03 angstrom] in murataite ceramics and ThO2 film. The Th4+ second coordination sphere [r(Th-M) approximate to 3.5 angstrom] in murataite is represented by 3d metals: titanium, iron or manganese.

引用

页码：135 / 137

页数：3

共 50 条

[1] Murataite-based ceramics for actinide waste immobilization
Stefanovsky, SV
Yudintsev, SV
Nikonov, BS
Omelianenko, BI
Ptashkin, AG
SCIENTIFIC BASIS FOR NUCLEAR WASTE MANAGEMENT XXII, 1999, 556 : 121 - 128
[2] Leach resistance of murataite-based ceramics containing actinides
Stefanovsky, S. V.
Yudintsev, S. V.
Perevalov, S. A.
Startseva, I. V.
Varlakova, G. A.
JOURNAL OF ALLOYS AND COMPOUNDS, 2007, 444 (SPEC. ISS.) : 618 - 620
[3] Alpha-decay damage in murataite-based ceramics
Stefanovsky, S. V.
Lukinykh, A. N.
Tomilin, S. V.
Lizin, A. A.
Yudintsev, S. V.
SCIENTIFIC BASIS FOR NUCLEAR WASTE MANAGEMENT XXXI, 2008, 1107 : 389 - +
[4] Leaching of neptunium from garnet- and murataite-based ceramics
Perevalov, S. A.
Stefanovsky, S. V.
Yudintsev, S. V.
Mokhov, A. V.
Ptashkin, A. G.
RADIOCHIMICA ACTA, 2006, 94 (9-11) : 509 - 514
[5] Inductive cold crucible melting of actinide-bearing murataite-based ceramics
Stefanovsky, S. V.
Ptashkin, A. G.
Knyazev, O. A.
Dmitriev, S. A.
Yudintsev, S. V.
Nikonov, B. S.
JOURNAL OF ALLOYS AND COMPOUNDS, 2007, 444 : 438 - 442
[6] Inductive cold crucible melting of actinide-bearing murataite-based ceramics
Stefanovsky, S.V.
Ptashkin, A.G.
Knyazev, O.A.
Dmitriev, S.A.
Yudintsev, S.V.
Nikonov, B.S.
Journal of Alloys and Compounds, 2007, 444-445 (SPEC. ISS.): : 438 - 442
[7] Structure of the XPS Spectra of a ThO2 Crystal Film
Putkov, A. E.
Maslakov, K., I
Teterin, A. Yu
Teterin, Yu A.
Ryzhkov, M., V
Ivanov, K. E.
Kalmykov, S. N.
Petrov, V. G.
RADIOCHEMISTRY, 2022, 64 (02) : 133 - 142
[8] Structure of the XPS Spectra of a ThO2 Crystal Film
A. E. Putkov
K. I. Maslakov
A. Yu. Teterin
Yu. A. Teterin
M. V. Ryzhkov
K. E. Ivanov
S. N. Kalmykov
V. G. Petrov
Radiochemistry, 2022, 64 : 133 - 142
[9] A simple method for preparing ThO2 ceramics with high density
Qi, Song
Guan, Fang
Peng, Dan
Zhang, Xuyi
Liao, Wuping
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, 2023, 20 (02) : 1194 - 1204
[10] FRACTURE CHARACTERISTICS OF THO2 CERAMICS AT HIGH-TEMPERATURES
CHEN, TJ
KNAPP, WJ
WAZZAN, AR
AMERICAN CERAMIC SOCIETY BULLETIN, 1981, 60 (09): : 923 - 923

← 1 2 3 4 5 →