Synthesis and characterization of Ag–Ni bimetallic nanoparticles by laser-induced plasma

Xiao, Qingbo; Liu, Yang; Liu, Jiahong; Hai, Ran; Oderji, Hassan Yousefi; Ding, Hongbin

doi:10.1016/j.tsf.2011.04.201

Cited by 26 publications

(9 citation statements)

References 21 publications

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“…The tests were performed for 3 systems: without a catalyst, with Ag nanoparticles as catalysts, and with Ag-Ni alloy as a catalyst. For each system, experiments were performed at five different temperatures, 25,30,35,40, and 45 • C. All experiments were repeated a minimum of 3 times.…”

Section: Catalytic Testsmentioning

confidence: 99%

Synthesis and Catalytic Study of NiAg Bimetallic Core–Shell Nanoparticles

et al. 2023

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This publication presents the synthesis of core–shell nanoparticles, where the core was Ni, and the shell was a Ag–Ni nano alloy. The synthesis was based on the reduction of Ni and Ag ions with sodium borohydride in the presence of trisodium citrate as a stabilizer. In order to determine the phase composition of the obtained nanoparticles, an XRD study was performed, and in order to identify the oxidation states of the nanoparticle components, an XPS spectroscopic study was performed. The composition and shape of the particles were determined using the HR-TEM EDS test. The obtained nanoparticles had a size of 11 nm. The research on catalytic properties was carried out in the model methylene blue reduction system. The investigation of the catalytic activity of colloids was carried out with the use of UV–Vis spectrophotometry. The Ag–Ni alloy was about ten times more active than were pure silver nanoparticles of a similar size.

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Section: Catalytic Testsmentioning

confidence: 99%

Synthesis and Catalytic Study of NiAg Bimetallic Core–Shell Nanoparticles

et al. 2023

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“…For instance, Nakamura T. and Sato S. developed a solid-solution of palladiumplatinum (Pd-Pt) particles with total variable composition that was synthetized using highintensity laser irradiation of liquid solution of palladium and platinum ions where no reducing agents or thermal processes were employed (Nakamura and Sato 2015). Similarly, a laser ablation deposition technique was utilized to generate silver-nickel (Ag-Ni) bimetallic nanoparticles (Xiao et al 2011); while Ag-Pd nanoparticles have been synthetized by colloids of AgNPs using liquid methodology by pulsed laser ablation in aqueous media (Mottaghi et al 2014).…”

Section: Physicochemical Approachesmentioning

confidence: 99%

Bimetallic Nanoparticles for Biomedical Applications: A Review

Medina-Cruz

Saleh

Vernet-Crua

et al. 2020

Racing for the Surface

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Bimetallic nanoparticles, or BMNPs, are nanosized structures that are of growing interest in biomedical applications. Although their production shares aspects with physicochemical approaches for the synthesis of their monometallic counterparts, they can show a large variety of new properties and applications as a consequence of the synergetic effect between the two components. These applications can be as diverse as antibacterial treatments or anticancer or biological imaging approaches, as well as drug delivery. Nevertheless, the utilization of BMNPs in such fields has received limited attention because of the severe lack of knowledge and concerns regarding the use of other nanomaterials, such as stability and biodegradability over time, tendency to form clusters, chemical reactivity, and biocompatibility. In this review, a close look at bimetallic systems is presented, focusing on their biomedical applications as antibacterial, anticancer, drug delivery and imaging agents, showing significant enhancement of their features compared to their monometallic counterparts and other current used nanomaterials for biomedical applications. Index1. Nanotechnology for biomedical applications. 1.1. Nanotechnology and nanomedicine. The born of a new era. 1.2. The use of metallic nanoparticles in nanomedicine. 2. Bimetallic nanoparticles. A step further. 2.1. Synthesis of bimetallic nanoparticles 2.1.1. Physicochemical approaches 2.1.2. Green chemistry approaches 2.2. Bimetallic nanoparticles as biomedical tools 2.2.1.

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“…While the situation of silver-nickel nanoalloys at thermal equilibrium is reasonably well understood, out-of-equilibrium conditions are often desirable and met in experiments, where kinetic factors come into play and hinder the appearance of the Ni core @Ag shell motif. Various groups have thus reported the successful synthesis of fully alloyed Ag-Ni nanoparticles through wet chemistry methods [14,17,[34][35][36][37][38] but also by laser ablation [39], electrodeposition [40], radiolysis [41,42], ion implantation [43], or galvanic replacement [44]. Even the rather opposite structure with a silver core coated by a nickel shell, Ag core @Ni shell , could be obtained on repeated occasions [45][46][47][48][49].…”

Section: Introductionmentioning

confidence: 99%

Structural relaxation in Ag-Ni nanoparticles: atomistic modeling away from equilibrium

Calvo

2022

Eur. Phys. J. Appl. Phys.

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The out-of-equilibrium structural relaxation of Ag-Ni nanoparticles containing about 1000--3000 atoms was investigated computationally by means of molecular dynamics trajectories in which the temperature is decreased gradually over hundreds of nanoseconds. At low silver concentration of 10--30\%, the evolution of chemical ordering in Ni$_{\rm core}$Ag$_{\rm shell}$ nanoparticles with different surface arrangements is found to proceed spontaneously and induce some rounding of the nickel core and its partial recristallization. Fast cooling of an initially hot metal vapor mixture was also considered, and it is shown to disfavor silver aggregation at the surface. Silver impurities are also occasionally produced but remain rare events under the conditions of our simulations.

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Synthesis and characterization of Ag–Ni bimetallic nanoparticles by laser-induced plasma

Cited by 26 publications

References 21 publications

Synthesis and Catalytic Study of NiAg Bimetallic Core–Shell Nanoparticles

Synthesis and Catalytic Study of NiAg Bimetallic Core–Shell Nanoparticles

Bimetallic Nanoparticles for Biomedical Applications: A Review

Structural relaxation in Ag-Ni nanoparticles: atomistic modeling away from equilibrium

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