Polymeric precursor method
Nanostructured TiO2 thin films by polymeric precursor method.
... BY POLYMERIC PRECURSOR ...by polymeric precursor route due to its advantages on stoichiometric and morphological ...control. Precursor stoichiometry, synthesis pH, solids concentration ...
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Synthesis of titaniacarbon nanocomposites by polymeric precursor method
... Here we describe a single chemical route to obtain highly dispersed nanometric Ni particles embedded in titania/carbon matrixes (amorphous and crystalline). The synthesis of these nanocomposites is based on a ...
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Chemical modification of the surface of alumina with alkaline earth metal oxides using the polymeric precursor method for catalysis application
... This work describes the synthesis, by the polymeric precursor method, and the properties of surface modifications of alumina with alkaline earth metal oxides. The results suggest that bulk alumina ...
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Characterization of dental cement obtained from a glass prepared by the polymeric precursor method.
... CHARACTERIZATION OF DENTAL CEMENT OBTAINED FROM A GLASS PREPARED BY THE POLYMERIC PRECURSOR METHOD. Glass ionomer cements are glass and polymer composite materials. These materials currently find use ...
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J. Braz. Chem. Soc. vol.23 número6
... the polymeric precursor method presents a mixed system of different pure alloy phases or even a core-shell structure, such as shown from the results of XRD and XPS ...
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Cerâmica vol.53 número326
... appear to be especially promising materials, since their structure display numerous imperfections and can be synthesized at low temperatures by chemical routes, such as the sol-gel process. Many reports have been ...
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Cerâmica vol.61 número357
... The polymeric precursor method proved eficient to synthesize pigments with colors ranging from green to red, since it yielded pure PbCrO 4 and Pb 2 CrO 5 ...
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Synthesis and characterization of lanthanum- and yttrium-doped Fe2O3 pigments
... Mixed oxides, particularly those of general formula ABO 3 (A and B are d and f transition metals), which crystallize in the perovskite structure have been studied for a range of new applications. These materials are ...
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Cerâmica vol.59 número350
... and polymeric precursor ...Pechini method [12-14, 19, 20], tin citrate is usually precipitated from the solution being washed several times for elimination of the ...as precursor, residual ...
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Síntese de hidroxiapatita pelo método dos precursores poliméricos / Synthesis of hydroxiapatite by the method of polymeric precursors
... The use of ceramic materials applied as biomaterials (bioceramics) has attracted the attention of researchers due to their biocompatibility and high wear resistance, allowing for several applications. Among ceramics, ...
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Cerâmica vol.53 número325
... Mixed oxides, particularly those of general formula ABO 3 (A and B are d and f transition metals), which crystallize in the perovskite structure have been studied for a range of new applications. These materials are ...
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Mat. Res. vol.2 número2
... The precursor solution was prepared by the dissolution of strontium carbonate in a aqueous titanium citrate solu- tion, prepared from titanium ...the polymeric precursor ...
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Mat. Res. vol.16 número1
... The polymeric precursor method is based on the polymerization of metallic citrate by ethylene glycol. A hydrocarboxilic acid such as citric acid is normally used to chelate cations in an aqueous ...
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Cerâmica vol.64 número369
... (polymeric precursor) method (Fig. 2) showed excellent agreement with ICDD ile 00-075-2182, indicating that an orthorhombic structure (space group Amam) was obtained. No secondary phase was observed ...
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Estudos in vitro e in vivo de análogo da timidina marcada com complexo organometálico de tecnécio-99m para potencial uso em diagnóstico tumoral.
... do precursor carbonil-tecnécio-99m, marcação da timidina com este precursor, estudo da estabilidade, e avaliações radioquímicas e biológicas com animais sadios e portadores de ...do precursor ...
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Mat. Res. vol.11 número3
... This method allowed the production of Z-type barium hexafer- rite possessing very good magnetic properties and resulting in a stealth technological product with a microwave absorption greater than ...
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CRYSTALLIZATION KINETICS OF POLYMERIC NANOCOMPOSITES BASED ON POLYAMIDE 12 MODIFIED BY Cr2O3 NANOPARTICLES
... into polymeric matrix without formation of nanoparticles ...of polymeric composites (Young’s modulus, durability limit) are decreased for 20-30 % as compared with not modified PA 12 synthesized by means of ...
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Synthesis of LaNiO3 perovskite type by chelating precursor method using EDTA: optimization of chelating content.
... acordo com os resultados mostrados na igura, é possível observar que a reação de decomposição, em geral, ocorre em duas faixas de temperatura principais. Na primeira faixa de temperatura de 30 a 250 °C ocorrem perdas de ...
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J. Braz. Chem. Soc. vol.22 número2
... Herein we report synthesis of indole containing derivatized L -methionine which has been incorporated to the polymeric framework to have an eficient trace level separation of lead and silver. It is found that ...
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Quím. Nova vol.27 número5
... component precursor, via a combustion method, are ...a polymeric precursor for ...combustion method lead to a mixture which is heated at 950 o C for 4 h, resulting in spheroidal ...
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