Single Step Solid-State Synthesis of Lanthanum Molybdate

• Autorzy: Avcioğlu S. , Mutuk T. , Gürbüz M. , Çevik S.

Identyfikatory

DOI

10.2478/adms-2019-0016

• Języki publikacji: EN

Abstrakty

EN

In this study, LaxMoyOz powders were synthesized by a cost-effective solid-state synthesis method. Four different heating cycles were designed to investigate the effects of synthesis temperature and holding time on lanthanum molybdate (LMO) formation, phase assemblies, particle size and morphology. X-Ray Diffraction (XRD) and scanning electron microscopy (SEM) studies were performed to observe crystal structure and particle morphology of synthesized powders. The results showed that nearly ninety percent β - La2Mo2O9 (43,3 nm crystal size) phase was obtained at 1000 °C for 6 h holding time. Longer holding times at 1000 °C favor more oxygen-rich compounds which cause recrystallization of various new crystalline phases. The grain size of the synthesized powder was increased from 0,2 μm to 1,5 μm with increasing holding time. In summary, it is possible to manufacture LMO powders rich in β - La2Mo2O9 by one - step solid - state synthesis method. The phase assembles and particle size of LMO powders could also be tailored by optimization of heat treatment cycle.

Słowa kluczowe

EN

heat treatment; lanthanum molybdate; phase assembly; solid state synthesis

PL

obróbka cieplna; molibdenian lantanu; montaż fazowy; synteza półprzewodnikowa

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2019
• Tom: Vol. 19, nr 3(61)
• Strony: 46--54
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Avcioğlu S.

• Ondokuz Mayis University, Faculty of Engineering, Metallurgical and Materials Engineering, Samsun, Turkey

autor

Mutuk T.

• Ondokuz Mayis University, Faculty of Engineering, Metallurgical and Materials Engineering, Samsun, Turkey

autor

Gürbüz M.

• Ondokuz Mayis University, Faculty of Engineering, Department of Mechanical Engineering, Samsun, Turkey

autor

Çevik S.

• Ondokuz Mayis University, Faculty of Engineering, Metallurgical and Materials Engineering, Samsun, Turkey

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).