Influence of Reduction Kinetics on the Preparation of Well-Defined Cubic Palladium Nanocrystals

Abstract

A facile synthesis strategy has been developed to synthesize palladium nanocubes with tunable size and well-controlled morphology. Through adjusting the dosages of acetate species (KOAc, NHOAc, and HOAc), the sizes of well-defined Pd nanocubes are tuned. The reduction of Pd precursors, a first-order reaction, is influenceable by acetate species, and a quantitative relationship between cubic width and apparent reduction rate constant, which has been found to be an effective parameter to describe the growth process of Pd nanocubes, has been uncovered. The effect of apparent reduction rate constant on the growth of Pd nanocubes has been discussed, and the growth kinetics of Pd nanocubes is quantitatively depicted.

Optimization of Antibacterial Efficacy of Noble-Metal-Based Core–Shell Nanostructures and Effect of Natural Organic Matter

“…The Pd cubic and octahedral seeds were synthesized according to previous literature reports. , (1) Synthesis of 6 and 14 nm Pd cubes: 105 mg of PVP, 60 mg of AA, 5 mg of KBr, and 185 mg of KCl were dissolved in 8 mL of ultrapure water at room temperature, and the mixture was preheated at 80 °C for 10 min. Then, 3 mL of Na 2 PdCl 4 solution (57 mg) was added.…”

LaMer's 1950 model of particle formation: a review and critical analysis of its classical nucleation and fluctuation theory basis, of competing models and mechanisms for phase-changes and particle formation, and then of its application to silver halide, semiconductor, metal, and metal-oxide nanoparticles

“…Due to the sheer volume of research conducted on transition-and other metal-nanoparticle formation, this section will be focused on selected, especially highly investigated metals (gold, iridium, platinum, silver, and palladium) that have contributed significantly to the development of physical models or mechanisms for nucleation and growth, with of course an eye to those that cite or bear on the 1950 particle formation model. A full list of 69 references to metal nanoparticle formation related to the 1950 model can be found in Table S3 in the ESI, † covering the specific metals: gold, 148-153 iridium, 3,17 platinum, 154,155 silver, [156][157][158] palladium, [159][160][161] and indium. 162 Once again we strongly recommend prereading and studying the entries in Table S3 (ESI †) before proceeding, as the data and evidence summarized there will allow the reader to make up their own opinions before reading the next section.…”

PdAgPt Corner-Satellite Nanocrystals in Well-Controlled Morphologies and the Structure-Related Electrocatalytic Properties

“…Size-controlled Pd nanocubes were basically prepared following the typical synthesis procedure reported before [47]. Pd nanocubes served as seeds were washed with water and acetone five times to eliminate adsorbed substances on the surface, and then re-dispersed with EG.…”