Improved Metal Nonporous Materials Derived from Surfactants: Synthesis, Characterization, and Applications (KEY IJP************468)

• Syed Nadeem Ahmed Alvi

Abstract

When synthesizing metal nanoparticles, it is possible to regulate their size, shape, and dispersion stability by choosing the stabilizer with care and changing the molar ratio of stabilizer to precursor ions. Conversely, inadequate surface use may occur if the stabilizing chemicals used impede the nanoparticlesactive regions. This study describes several methods for producing metal nanoparticles in a surfactant-free environment and provides examples of their use in catalysis and sensing. When discussing the manufacture of metal nanoparticles, the phrase "surfactant-free synthesis" does not imply that stabilizing agents such thiolate and phosphine compounds, surfactants, or polymers are not used. These metal nanoparticles are stabilized by the presence of solvents, simple ions from the reducing agents, or salts with a low molecular weight. Additionally, methods for creating metal nanoparticles without the use of surfactants are described, including laser ablation, photochemical, and ultrasonochemical synthesis. Due to the efficient utilization of their surfaces in SALDI-MS and other methods, metal nanoparticles prepared without surfactants, polymers, templates, or seeds are expected to exhibit excellent performance in sensing (surface-enhanced Raman scattering, SERS) and catalysis (electrocatalysis and synthetic catalysis).