The combination of materials to improve properties of interest has become one of the strategies widely used for numerous applications, including new catalysts, over the last few decades. In this study, silver molybdate (β-AgMoO) microcrystals were efficiently obtained by the hydrothermal method, obtaining composites with different amounts of graphene oxide (GO) (1, 2.5, 5, 7.
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November 2024
Extensive research in the last few decades has conclusively demonstrated the significant influence of experimental conditions, surfactants, and synthesis methods on semiconductors' properties in technological applications. Therefore, in this study, the synthesis of molybdenum oxide (MoO) was reported by the addition of 2.5 (MoO_2.
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May 2024
The design of particle size and morphology are a promising approach to investigating the properties exhibited by different types of materials. In the present study, the silver phosphate microcrystals (AgPO) were first time synthesized using the hydrothermal and solvothermal method by combination of the solvents water/isopropyl alcohol (SP-IA), water/acetone (SP-AC), water/ammonium hydroxide (AP-AH), all in a ratio of 1:1 (v/v). The synthesized materials were structurally characterized by X-ray diffraction (XRD), Rietveld refinement, and Raman vibrational spectroscopy, where it was confirmed that the pure phase was achieved for all prepared samples.
View Article and Find Full Text PDFIn this study, we report the easy and low-cost synthesis of calcium niobate (CaNbO) with the isomorphic structure of the Rynersonite mineral for CaTaO. The samples were prepared by the ball milling method at room temperature at a synthesis time of 0.5, 1, 2, 3, and 4 h.
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September 2022
Poly(-anisidine) (PPA) is a polyaniline derivative presenting a methoxy (-OCH) group at the position of the phenyl ring. Considering the important role of conjugated polymers in novel technological applications, a systematic, combined experimental and theoretical investigation was performed to obtain more insight into the crystallization process of PPA. Conventional oxidative polymerization of -anisidine monomer was based on a central composite rotational design (CCRD).
View Article and Find Full Text PDFCorner-truncated cubic β-AgCuMoO microcrystals were synthesized using the hydrothermal method. These were investigated by X-ray diffraction, confirming obtention of the spinel structure 3̅. Through Raman spectroscopy are confirmed all modes for the point group of .
View Article and Find Full Text PDFIn this work, we report the room-temperature synthesis of pure calcium tungstate (CaWO) and copper-doped calcium tungstate solid solution (CaCuWO) by using a sonochemistry method. These materials were structurally characterized by X-ray diffraction (XRD) and Raman spectroscopy. The obtained XRD patterns were submitted to a Rietveld refinement showing, in both materials, a tetragonal phase with space group and point group of 4 and , respectively.
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