Chemical and Structural Transformations in Manganese Aluminum Spinel of the Composition Mn1.5Al1.5O4 During Heating and Cooling in Air Full article
Journal |
Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779 |
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Output data | Year: 2010, Volume: 51, Number: 3, Pages: 500-506 Pages count : 7 DOI: 10.1007/s10947-010-0072-5 | ||||||
Tags | High temperature X-ray diffraction, Manganese aluminum systems, Phase transformations | ||||||
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Abstract:
Single phase cubic spinel of the composition Mn1.5Al1.5O4 is synthesized. Its crystal structure refinement shows that 0.4Mn+0.6Al are in the octahedral sites and 0.7Mn+0.3Al are in the tetrahedral sites. High temperature X-ray diffraction is used to analyze Mn1.5Al1.5O4 behavior during heating and cooling in air. In a temperature range of 600°C to 700°C, initial spinel splits into layers, and the sample represents a twophase system: cubic spinel Mn0.4Al2.4O4 and a phase based on β-Mn3O4. Above 900°C the sample again turns into single phase cubic spinel. The role of oxidizing processes in the decomposition of Mn1.5Al1.5O4 caused by oxygenation and partial oxidation of Mn2+ to Mn3+ is shown. A scheme of structural transformations of manganese aluminum spinel during heating from room temperature and cooling from 950°C is proposed.
Cite:
Bulavchenko O.A.
, Tsybulya S.V.
, Tsyrulʹnikov P.G.
, Afonasenko T.N.
, Cherepanova S.V.
, Gerasimov E.Y.
Chemical and Structural Transformations in Manganese Aluminum Spinel of the Composition Mn1.5Al1.5O4 During Heating and Cooling in Air
Journal of Structural Chemistry. 2010. V.51. N3. P.500-506. DOI: 10.1007/s10947-010-0072-5 WOS Scopus РИНЦ
Chemical and Structural Transformations in Manganese Aluminum Spinel of the Composition Mn1.5Al1.5O4 During Heating and Cooling in Air
Journal of Structural Chemistry. 2010. V.51. N3. P.500-506. DOI: 10.1007/s10947-010-0072-5 WOS Scopus РИНЦ
Original:
Булавченко О.А.
, Цыбуля С.В.
, Цырульников П.Г.
, Афонасенко Т.Н.
, Черепанова С.В.
, Герасимов Е.Ю.
Химические и структурные превращения в алюмомарганцевой шпинели состава Mn1,5Al1,5O4 при нагреве и охлаждении на воздухе
Журнал структурной химии. 2010. Т.51. №3. С.518-524. РИНЦ
Химические и структурные превращения в алюмомарганцевой шпинели состава Mn1,5Al1,5O4 при нагреве и охлаждении на воздухе
Журнал структурной химии. 2010. Т.51. №3. С.518-524. РИНЦ
Dates:
Published print: | May 31, 2010 |
Published online: | Jul 28, 2010 |
Identifiers:
Web of science | WOS:000280556200012 |
Scopus | 2-s2.0-77955105360 |
Elibrary | 15319254 |
Chemical Abstracts | 2010:939261 |
Chemical Abstracts (print) | 155:569276 |
OpenAlex | W2065297542 |