Application of ferrocene-resorcinarene in silver nanoparticle synthesis

Sergeeva, T. Yu.; Samigullina, Aida I.; Gubaidullin, А. Т.; Nizameev, Irek R.; Kadirov, Marsil K.; Ziganshinа, Albina Y.; Коновалов, А. И.

doi:10.1039/c6ra19961e

Cited by 11 publications

(6 citation statements)

References 52 publications

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“…X-ray diffraction (XRD) was carried out to evaluate the nanocrystal of MnO 2 /Ag NPs, and pure Ag NPs were employed as a control. The diffraction peaks of both MnO 2 /Ag and Ag NPs on powder X-ray diffraction could match well with the crystal phase of pure Ag (JCPDS 087-0720), and no MnO 2 crystal phase can be observed, possibly because the amount of MnO 2 is too small (Figure d). X-ray photoelectron spectroscopy (XPS) was used to investigate the composition and binding states on the surface of MnO 2 /Ag NPs.…”

Section: Results and Discussionmentioning

confidence: 73%

Interface Engineering of Silver-Based Heterostructures for CO₂ Reduction Reaction

Yuan

Jiang

et al. 2020

ACS Appl. Mater. Interfaces

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The production of CO from the CO 2 reduction reaction (CO 2 RR) is of great interest in the renewable energy storage and conversion, the neutral carbon emission, and carbon recycle utilization. Silver (Ag) is one of the catalytic metals that are active for electrochemical CO 2 reduction into CO, but the catalysis requires a large overpotential to achieve higher selectivity. Constructing a metal-oxide interface could be an effective strategy to boost both activity and selectivity of the catalysis. Herein, density functional theory (DFT) calculations were first conducted to reveal the chemical insights of the catalytic performance on the interface between metal oxide and Ag(111) (MO x /Ag(111)). The results show that the *COOH intermediates can be more stabilized on the surfaces of MO x /Ag(111) than pure Ag(111). The hydrogen evolution reaction on MO x /Ag(111) can be suppressed due to the significantly higher Gibbs free energy for hydrogen adsorption (ΔG H *), thereby enhancing the selectivity toward CO 2 RR. A series of MO x /Ag composites with the unique interface based on the DFT results were then introduced though a two-step approach. The as-obtained MO x /Ag catalysts boosted both the CO activity and selectivity at a relatively positive potential range, especially in the case of MnO 2 /Ag. The reduction current density on the MnO 2 /Ag catalyst can reach 4.3 mA cm −2 at −0.7 V (vs RHE), which is 21.5 times higher than that on pure Ag, and the overpotential of CO 2 to CO (390 mV) possesses is much lower than that on pure Ag NPs (690 mV). This study proposes an effective design strategy to construct a metal-oxide interface for CO 2 RR based on the synergistic effect between metals and MO x .

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Section: Results and Discussionmentioning

confidence: 73%

Interface Engineering of Silver-Based Heterostructures for CO₂ Reduction Reaction

Yuan

Jiang

et al. 2020

ACS Appl. Mater. Interfaces

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“…Materials. USR was synthesized from calix[4]resorcinol 77 according to the procedure described in ref 78. The hexadecyl derivative of 1,4-diazabicyclo[2.2.2]octane was obtained by quaternization of 1,4diazabicyclo[2.2.2]octane with hexadecyl bromide.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

Supraamphiphilic Systems Based on Metallosurfactant and Calix[4]resorcinol: Self-Assembly and Drug Delivery Potential

et al. 2020

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Metallic amphiphiles are used as building blocks in the construction of nanoscale superstructures, where the hydrophobic effects induce the self-assembly of the nanoparticles of interest. However, the influence of synergizing multiple chemical interactions on an effective design of these structures mostly remains an open question. In this regard, supraamphiphilic systems based on flexible surfactant molecules and rigid macrocycles are being actively developed, but there are few works on the interaction between metallosurfactants and macrocycles. In the present work, the self-assembly and biological properties of a metallosurfactant with calixarene were studied for the first time. The metallosurfactant, a complex between lanthanum nitrate and two 4-aza-1-hexadecylazoniabicyclo[2.2.2]octane bromide units, and calix[4]resorcinol containing sulfonate groups on the upper rim were used to form a novel supraamphiphilic composition. The system formed was studied using a variety of physicochemical methods, including spectrophotometry, NMR, XRF, and dynamic and electrophoretic light scattering. It was found that the most optimal tetraanionic calix[4]resorcinol to dicationic metallosurfactant molar ratio, leading to mixed aggregation upon ion pair complexation, is 2:3. The mixed aggregates formed in the pentamolar concentration range were able to encapsulate hydrophilic substrates, including the anticancer drug cisplatin, the pure form of which is more cytotoxic toward healthy cells than toward diseased cells. Interestingly, the drug loaded into the macrocycle–metallosurfactant particles was less cytotoxic to a healthy Chang liver cell line and more cytotoxic to tumor M-HeLa cells. This selectivity depends on the amount of cisplatin added. The more drug is added to the macrocycle–metallosurfactant composition, the greater the biological activity against cancer cells. Taking into account that the appearance of resistance of cancer cells to drugs, especially to cisplatin, is one of the most important problems in treatment, the results of this work envisage the potential application of a mixed macrocycle–metallosurfactant system for the design of therapeutic cisplatin compositions.

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“…The prepared nanocatalyst was capable to catalyze the reduction of p -nitrophenol 19 (Scheme 14). 35 FcCA was chosen because it is water-soluble hence the nanoparticles can be extracted in an aqueous medium. Moreover, being a reducing agent 36 a it can reduce silver ions from Ag + to Ag 0 .…”

Section: Organic Transformationsmentioning

confidence: 99%

Recent applications of nanoparticles in organic transformations

et al. 2022

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Application of ferrocene-resorcinarene in silver nanoparticle synthesis

Abstract: An amphiphilic resorcinarene with ferrocene groups at the lower rim has been applied as both reductant and stabilizer in the synthesis of colloidal silver nanoparticles.

Cited by 11 publications

References 52 publications

Interface Engineering of Silver-Based Heterostructures for CO₂ Reduction Reaction

Interface Engineering of Silver-Based Heterostructures for CO₂ Reduction Reaction

Supraamphiphilic Systems Based on Metallosurfactant and Calix[4]resorcinol: Self-Assembly and Drug Delivery Potential

Recent applications of nanoparticles in organic transformations

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Application of ferrocene-resorcinarene in silver nanoparticle synthesis

Abstract: An amphiphilic resorcinarene with ferrocene groups at the lower rim has been applied as both reductant and stabilizer in the synthesis of colloidal silver nanoparticles.

Cited by 11 publications

References 52 publications

Interface Engineering of Silver-Based Heterostructures for CO2 Reduction Reaction

Interface Engineering of Silver-Based Heterostructures for CO2 Reduction Reaction

Supraamphiphilic Systems Based on Metallosurfactant and Calix[4]resorcinol: Self-Assembly and Drug Delivery Potential

Recent applications of nanoparticles in organic transformations

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Interface Engineering of Silver-Based Heterostructures for CO₂ Reduction Reaction

Interface Engineering of Silver-Based Heterostructures for CO₂ Reduction Reaction