Synthesis and Physicochemical Properties of Nickel-Containing Nanoparticles

Ревина, А. А.; Магомедбеков, Э. П.; Veretennikova, G. V.

doi:10.1134/s1066362218010113

Cited by 1 publication

(1 citation statement)

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“…Analogously with palladium NPs, Ni NPs (Fig. 2b) are characterized by absorption in the UV region of 210-220 nm [14], which is caused by surface plasmon resonance; however, it possesses a slightly broader band, which is related to the presence of the second neighboring band, though a less intense one. It should be noted that Ni NPs are formed in a different way than are palladium NPs; this is indicated by the residual quercetin content in RMS with metal NPs after 7 days of synthesis with intrinsic peaks in the range of 365-390 nm corresponding to absorption of the B-ring of the cinnamoyl system of quercetin.…”

Section: Synthesis Of Metal Nanoparticles Electronic Spectrophotometrymentioning

confidence: 99%

Synthesis of PdNi Bimetallic Nanoparticles and Their Composites in Reverse Micelles

Sergeev

Ревина

Суворова

2021

Prot Met Phys Chem Surf

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In this work, results of the synthesis of bimetallic nanoparticles (NPs) based on transition metals Pd, Ni, and Fe reduced by quercetin in reverse-micellar solution (RMS) of Н2О/AOT/isooctane are presented. Using fluorescence spectroscopy, the formation of bimetallic structure of PdcoreNishell NP is shown and a synergetic enhancement of optical absorbance is revealed in the plasmon resonance spectra at the wavelength values intrinsic for monometallic NPs. Investigation of the adsorption of bimetallic NPs on the surface of γ-alumina proves the advantage of palladium-containing particles with Fecore/Pdshell obtained as a result of targeted reduction of palladium in RMS on the surface of large Fe NPs, which appears in the increase in the adsorption effectiveness of such a structure due to stronger binding with the carrier surface. This approach decreases the amount of expensive metal during production of palladium nanocomposites through a significant decrease in production costs.

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Section: Synthesis Of Metal Nanoparticles Electronic Spectrophotometrymentioning

confidence: 99%