نتایج جستجو برای: spinel structure

تعداد نتایج: 1570753  

Journal: :Frontiers in Energy Research 2022

High-entropy oxides are an upcoming research topic due to their broad range of possible crystal structures and applications. In this work, we want present the change in catalytic properties when using different elements create a high-entropy spinel. Therefore, used nebulized-spray pyrolysis synthesize spinel (Mn 0.2 Fe Ni Mg Zn ) 3 O 4 later on exchanged or with multiple oxidation states, our e...

Azita Moheb Saeid Abedini Khorramie Shahram Moradi Dehagi

Three types of solvents with different polarity (cyclohexane, toluene and benzene), a nonionic surfactant Span 40 were used to prepare strontium aluminate (SrAl2O4) spinel nanoparticles by a reverse micelle method. The structure of SrAl2O4 nanoparticles was characterized by X-ray diffraction (XRD). The morphology and size of the synthesized materials were studied using field emission scanning e...

2009
H. Ryu K. S. Bartwal

Strontium aluminate, SrAl2O4 is well-known phosphor host material with spinel structure. Mg substituted compositions, MgxSr1-xAl2O4: Eu, Nd (with x= 0.05 0.25) were prepared by solid-state reaction method. Effect of Mg substitution on structure and photoluminescence was investigated. Prepared compositions were characterized for the phase and crystallinity by powder X-ray diffraction. The micro-...

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