Silver nanoparticles with planar twinned defects: effect of halides for precise tuning of plasmon resonance maxima from 400 to >900 nm

Abstract

We studied effects of halides on morphology of planar twinned silver nanoparticles and demonstrated application of these effects to precisely tune silver surface plasmon resonance maxima in a broad vis-NIR range using a reliable two-stage modification protocol.

Selective synthesis of hexagonal Ag nanoplates in a solution-phase chemical reduction process

“…In addition, the transformation of Ag TNPs to HNPs is believed to be accelerated by Cl -. The etching effect of halide anions on nanostructures of noble metals has been well documented in the literature [40,41]. Such accelerated etching of Ag TNPs allows the capture of Ag HNPs during the transformation of 2-D Ag nanoplates.…”

Farbige Silberkolloide

“…Es dient als Ätzmittel und begünstigt so die regelmäßige Bildung Rolle der Kaliumbromid-Lösung: Die Rolle der Zugabe von KBr(aq) unter Bildung von AgBr(s) und dessen Reduktion zu Ag(s) wie bei der fotografi schen Entwicklung wird in der Literatur ausführlich beschrieben [11]. Für die Schule interessant ist die Berechnung des Gleichgewichts.…”

“…Facharbeit. Über systematische Experimente des Materialwissenschaftlers Kitaev zum Design von Silber-Nanoprismen kann man sich in den Ergänzungen zu [11] informieren, die frei zugänglich sind [12].…”

Size and Aspect Ratio Control of Pd2Sn Nanorods and Their Water Denitration Properties

“…Schematic illustration of the influence of the TOP and chloride ions on the shape and size of the Pd 2 Sn NRs.Several theories have been proposed to explain the influence of halide ions on the shape control of Pd, 30 Ag,[31][32] Au,[33][34][35] and CdSe[36][37][38][39] NPs. Halides may modify the reduction potential of the metal ions, passivate specific NP surfaces or control surface passivation by modulating the concentration of surface ligands [31][32][33][34][40][41].…”