Letter to the EditorThe Role of Colloidal Stability in the Formation of Gold Sols
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Sol-gel derived ITO-based bi-layer and tri-layer thin film coatings for organic solar cells applications
2020, Applied Surface ScienceCitation Excerpt :Also, the adsorbed borohydride plays a key role in stabilising the growing Ag nanoparticles by offering a particle surface charge. In contrast to the reduction of ionic silver, it has been reported that the preliminary reaction of the reduction of HAuCl4 by Na3C6H5O7·2H2O creates large clusters (~100–200 nm) which shrink in size as the reaction continues until a final cluster size of (~15–20 nm) is achieved [26]. Due to the absorption and scattering properties of gold nanoparticles, the shrinking process of the particles is continued along with a change in the colloidal solution colour from black to red.
Effect of citrate substitution by various α-hydroxycarboxylate anions on properties of gold nanoparticles synthesized by Turkevich method
2018, Colloids and Surfaces A: Physicochemical and Engineering AspectsCitation Excerpt :He investigated also the influence of temperature, a concentration of reagents and dilution on the reaction products in a citrate-based method. In the following years, several studies focused on the investigation of the effect of various reaction parameters in the Turkevich method on the mean particle size, standard deviation, optical properties and stability of synthesized AuNPs [13–16]. In the last two decades, the Turkevich method has again received significant attention [17–58].
Suppression of gold nanoparticle agglomeration and its separation via nylon membranes
2017, Chinese Journal of Chemical EngineeringPEGylation for biocompatible surface
2014, Colloid and Interface Science in Pharmaceutical Research and DevelopmentHydrogen-assisted fabrication of spherical gold nanoparticles through sonochemical reduction of tetrachloride gold(III) ions in water
2014, Ultrasonics SonochemistryCitation Excerpt :Indeed, we confirmed that plate-like particles were preferably formed rather than spherical AuNPs with the addition of HCl or NaCl in the sonochemical synthesis of AuNPs [27]. This means that Cl− ions adsorb a certain crystal facet, and thereby [AuCl4]− reduction occurs on other crystal facets [38,39]. We were successful to fabricate the spherical AuNPs from sonochemical reduction of [AuCl4]− with the aid of hydrogen gas (H2).