Formation of Zn- and Si-Based Oxide Systems: Analysis of Temperature Dependence of the Energy State | Sciact - CRIS-система Института катализа

Formation of Zn- and Si-Based Oxide Systems: Analysis of Temperature Dependence of the Energy State Научная публикация

Журнал

Catalysis for Sustainable Energy
ISSN: 2084-6819

Вых. Данные

Год: 2018, Том: 5, Номер: 1, Страницы: 28-33 Страниц : 6 DOI: 10.1515/cse-2018-0004

Ключевые слова

thermal decomposition; zinc oxide; silica; activation energy

Авторы

Brichkov Anton S. ¹ , Kuznetsova Svetlana A. ¹ , Mongush Evgeniya A. ¹ , Brichkova Viktoriya U. ¹ , Zabolotskaya Anastasiya V. ¹ , Glazneva Tatiana S. ^2,3

Организации

1	National Research Tomsk State University, Pr. Lenina, 36, Tomsk, Russia
2	Boreskov Institute of Catalysis, Pr. Ak. Lavrentieva, 5, Novosibirsk, Russia
3	Novosibirsk State University, Pirogova str., 2, Novosibirsk, Russia

Информация о финансировании (1)

Министерство образования и науки Российской Федерации

This article presents the results of the thermal analysis of dried colloidal solutions based on zinc nitrate with changes in tetraethoxysilane (TEOS) content. The main stages of the thermal decomposition of the dried sols were established and the activation energies of each stage were determined based on the results of thermogravimetric measurements using the Erofeev-Kolmogorov approach. For each stage, the products of thermal destruction in the gas phase were determined by mass-spectrometry. It was shown that the chemical decomposition in all samples started at a temperature above 200°C, and the temperature of zinc hydroxonitrate decomposition increased with increasing TEOS content in the ash, while the activation energy of that process decreased. X-ray diffraction analysis revealed that the thermal decomposition of dried sols at 600°C resulted in the formation of mixtures of ZnO in hexagonal syngony with amorphous SiO2 in amounts from 10 to 50 wt%.

Brichkov A.S. , Kuznetsova S.A. , Mongush E.A. , Brichkova V.U. , Zabolotskaya A.V. , Glazneva T.S.
Formation of Zn- and Si-Based Oxide Systems: Analysis of Temperature Dependence of the Energy State

Catalysis for Sustainable Energy. 2018. V.5. N1. P.28-33. DOI: 10.1515/cse-2018-0004 РИНЦ CAPlus OpenAlex

Полный текст от издателя

Поступила в редакцию:	27 авг. 2018 г.
Принята к публикации:	5 сент. 2018 г.
Опубликована online:	31 окт. 2018 г.
Опубликована в печати:	16 нояб. 2018 г.

РИНЦ:	44406521
Chemical Abstracts:	2019:2120223
OpenAlex:	W2900637344

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