Some Peculiarities of Zirconium Tungstate Synthesis by Thermal Decomposition of Hydrothermal Precursors | Sciact - CRIS-система Института катализа

Some Peculiarities of Zirconium Tungstate Synthesis by Thermal Decomposition of Hydrothermal Precursors Научная публикация

Журнал

Thermochimica Acta
ISSN: 0040-6031 , E-ISSN: 1872-762X

Вых. Данные

Год: 2014, Том: 597, Страницы: 19-26 Страниц : 8 DOI: 10.1016/j.tca.2014.10.003

Ключевые слова

High-temperature diffraction, Hydrothermal synthesis, Negative thermal expansion coefficient, Thermal decomposition, Zirconium tungstate

Авторы

Gubanov Alexander I. ^1,2 , Dedova Elena S. ^3,5 , Plyusnin Pavel E. ^1,2 , Filatov Eugeny Y. ^1,2 , Kardash Tatyana Y. ⁴ , Korenev Sergey V. ^1,2 , Kulkov Sergey N. ^3,5

Организации

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Akad. Lavrentiev Prospekt 3, 630090 Novosibirsk, Russian Federation
2	Novosibirsk State University, Pirogova str. 2, 630090 Novosibirsk, Russian Federation
3	Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, pr. Akademicheskii 2/4, 634021 Tomsk, Russian Federation
4	Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Akad. Lavrentiev Prospekt 5, 630090 Novosibirsk, Russian Federation
5	Tomsk Polytechnic University, Lenin Avenue 30, 634050 Tomsk, Russian Federation

Информация о финансировании (5)

1	Национальный исследовательский Томский государственный университет	14.575.21.0040
2	Российский фонд фундаментальных исследований	14-33-50213
3	Министерство образования и науки Российской Федерации
4	Совет по грантам Президента Российской Федерации	МК-1934.2013.3
5	Совет по грантам Президента Российской Федерации	МК-5681.2014.8

This article discusses the some peculiarities of the synthesis ZrW2O8 (1) using thermal decomposition of the precursor ZrW2O7((OH)1.5,Cl0.5)•2H2O (2), prepared by hydrothermal method. On hydrothermal synthesis of 2 the optimal concentration of hydrochloric acid in the reaction mixture is about 2.5М. TG approach to determination of the chemical composition of the precursor was suggested. It has been found out that the precursor for the synthesis of zirconium tungstate has chemical formula 2. Thermal decomposition of the precursor 2 begins are 200°С and affords an amorphous intermediate, which crystallizes into cubic single-phase 1 above 550°С with an exoeffect. The temperature of the beginning of the transition from amorphous to the crystalline state is 350 ± 25 °С.

Gubanov A.I. , Dedova E.S. , Plyusnin P.E. , Filatov E.Y. , Kardash T.Y. , Korenev S.V. , Kulkov S.N.
Some Peculiarities of Zirconium Tungstate Synthesis by Thermal Decomposition of Hydrothermal Precursors
Thermochimica Acta. 2014. V.597. P.19-26. DOI: 10.1016/j.tca.2014.10.003 WOS Scopus РИНЦ CAPlus OpenAlex

Поступила в редакцию:	29 мая 2014 г.
Принята к публикации:	4 окт. 2014 г.
Опубликована online:	8 окт. 2014 г.
Опубликована в печати:	10 дек. 2014 г.

Web of science:	WOS:000347132700003
Scopus:	2-s2.0-84908257818
РИНЦ:	23995475
Chemical Abstracts:	2014:1737437
OpenAlex:	W2102578886

БД	Цитирований
Web of science	13
Scopus	14
РИНЦ	14
OpenAlex	14