Two-step process for synthesizing wheat-like silver nanoparticles by using facile wet-chemical method

Wang, Lihui; Xia, Cuncun; Lin, Feng; Qin, Haiqing; Liu, Wenping; Xie, Delong; Pan, Xiaoyi; Lu, Zongliu; Li, Shuo; Zhang, Xiaowen

doi:10.1088/2053-1591/ab4ae8

Cited by 1 publication

(1 citation statement)

References 25 publications

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“…In general, PtNPs and AgNPs are synthesized using single-phase [44][45][46][47] and twophase transfer methods [44,48,49]. By carefully adjusting the reaction parameters (such as reaction time, temperature, reagents, and capping agents), the size, shape, and quality of the PtNPs and AgNPs can be controlled [44][45][46][47][48].…”

Section: Introductionmentioning

confidence: 99%

Controlled Synthesis of Platinum and Silver Nanoparticles Using Multivalent Ligands

et al. 2022

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Here, the controlled formation of platinum nanoparticles (PtNPs) and silver nanoparticles (AgNPs) using amine-functionalized multivalent ligands are reported. The effects of reaction temperature and ligand multivalency on the growth kinetics, size, and shape of PtNPs and AgNPs were systematically studied by performing a stepwise and a one-step process. PtNPs and AgNPs were prepared in the presence of amine ligands using platinum (II) acetylacetonate and silver (I) acetylacetonate, respectively. The effects of ligands and temperature on the formation of PtNPs were studied using a transmission electron microscope (TEM). For the characterization of AgNPs, additionally, ultraviolet-visible (UV-Vis) absorption was employed. The TEM measurements revealed that PtNPs prepared at different temperatures (160–200 °C, in a stepwise process) are monodispersed and of spherical shape regardless of the ligand multivalency or reaction temperature. In the preparation of PtNPs by the one-step process, ligands affect the shape of the PtNPs, which can be explained by the affinity of the ligands. The TEM and UV-Vis absorption studies on the formation of AgNPs with mono-, di-, and trivalent ligands showed narrower size distributions, while increasing the temperature from 80 °C to 120 °C and with a trivalent ligand in a one-step process.

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