High-Temperature XRD Investigation of Spinel Mn1.5Al1.5O4 Decomposition | Sciact - CRIS-система Института катализа

High-Temperature XRD Investigation of Spinel Mn1.5Al1.5O4 Decomposition Научная публикация

Конференция

12th European Powder Diffraction Conference
27-30 авг. 2010 , Darmstadt

Журнал

Zeitschrift für Kristallographie
ISSN: 0044-2968

Вых. Данные

Год: 2011, Том: 226, Номер: 1, Страницы: 325-330 Страниц : 6 DOI: 10.1524/9783486991321-054

Ключевые слова

high-temperature XRD, spinel, catalyst structure

Авторы

Bulavchenko O. ^1,2 , Tsybulya S. ^1,2 , Gerasimov E. ^1,2 , Cherepanova S. ^1,2 , Afonasenko T. ³ , Tsyrulnikov P. ³

Организации

1	Boreskov Institute of Catalysis, pr. Akad. Lavrentieva 5, Novosibirsk 630090, Russian Federation
2	Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russian Federation
3	Institute of Hydrocarbons Processing, st. Neftezavodskaya 5, 644040, Russian Federation

This article describes a study of behaviour of cubic Mn1.5Al1.5O4 spinel during heating and cooling under air. High-temperature XRD and TEM were used to investigate structure transformations and sample microstructure. XRD data show spinel decomposition during cooling and heating under air at 500-700oC. The products of decomposition consist of nanocrystalline tetragonal phase (with particle size of 20 nm) and cubic spinel (50 nm). Cu-bic spinel composition changes by various ways on the initial step during the heating and cooling. Thus, the structure mechanisms of decomposition are different. But the final de-composition products are the same.

Bulavchenko O. , Tsybulya S. , Gerasimov E. , Cherepanova S. , Afonasenko T. , Tsyrulnikov P.
High-Temperature XRD Investigation of Spinel Mn1.5Al1.5O4 Decomposition
Zeitschrift für Kristallographie. 2011. V.226. N1. P.325-330. DOI: 10.1524/9783486991321-054 РИНЦ OpenAlex

РИНЦ:	21810966
OpenAlex:	W2495346963

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