منابع مشابه
Synthesis and Characterization of Iron Oxide Nanoparticles by Thermal Decomposition Method of Iron (III) Chelates
Magnetic iron oxide nanoparticles have numerous applications in the biomedical field. This paper reports the preparation and properties of iron oxide nanoparticles synthesised by thermal decomposition method from iron chelates. The iron oxide nanoparticles were characterized by FTIR, powder XRD, VSM, SEM and TEM techniques. FTIR and powder XRD studies show that iron oxide was fo...
متن کاملSilver europium(III) polyphosphate
Europium(III) silver polyphosphate, AgEu(PO(3))(4), was prepared by the flux method. The atomic arrangement is built up by infinite (PO(3))(n) chains (periodicity of 4) extending along the c axis. These chains are joined to each other by EuO(8) dodeca-hedra. The Ag(+) cations are located in the voids of this arrangement and are surrounded by five oxygen atoms in a distorted [4+1] coordination.
متن کاملThermal Stability of Europium(III) Chelate Encapsulated by Sol-Gel Glass
In order to improve the stability of high color-purity red phosphors for ultraviolet excitation, we encapsulated an Eu-chelate, Eu(HFA)3(TPPO)2, by sol-gel derived glass networks and studied its thermal stability as well as photoluminescence (PL) characteristics. The PL quantum yield of an encapsulated sample was ten times higher than that without encapsulation after annealing at 160 °C for 2 h...
متن کاملAqueous speciation studies of europium(III) phosphotungstate.
The incorporation of lanthanide ions into polyoxometalates may be a unique approach to generate new luminescent, magnetic, and catalytic functional materials. To realize these new applications of lanthanide polyoxometalates, it is imperative to understand the solution speciation chemistry and its impact on solid-state materials. In this study we find that the aqueous speciation of europium(III)...
متن کاملPentapotassium europium(III) dilithium decafluoride, K5EuLi2F10
The title compound, K(5)EuLi(2)F(10), belongs to so-called self-activated materials containing lanthanoid ions within the matrix. A common feature of these systems is a large separation between the closest lanthanoid ions, which is one of the crucial factors governing the self-quenching of luminescence. The crystal structure of K(5)EuLi(2)F(10) is isotypic with other K(5)RELi(2)F(10) compounds ...
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ژورنال
عنوان ژورنال: Journal of the Ceramic Society of Japan
سال: 1988
ISSN: 0914-5400,1882-1022
DOI: 10.2109/jcersj.96.890