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Colloidal precipitates

Colloidal precipitates

The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...

Colloids

Colloids

Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...

Coagulation

Coagulation

Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...

Metallic Solids

Metallic Solids

Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....

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Updated: Aug 6, 2025

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles

Published on: June 25, 2018

Plate-Like Colloidal Metal Nanoparticles.

Leonardo Scarabelli¹, Muhua Sun², Xiaolu Zhuo³

¹NANOPTO Group, Institue of Materials Science of Barcelona, Bellaterra, 08193, Spain.

Chemical Reviews

|March 22, 2023

Summary

This summary is machine-generated.

Plate-like metal nanoparticles offer tunable, anisotropic properties. This review covers their solution-phase synthesis, mechanistic insights, and diverse applications, highlighting future directions for these versatile nanomaterials.

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Last Updated: Aug 6, 2025

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles

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Published on: June 25, 2018

Photodeposition of Pd onto Colloidal Au Nanorods by Surface Plasmon Excitation

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Published on: August 15, 2019

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Published on: October 1, 2019

Area of Science:

Materials Science and Nanotechnology
Physical Chemistry
Nanoparticle Synthesis

Background:

Pseudo-two-dimensional (2D) plate-like metal nanoparticles possess highly anisotropic and tunable structures.
These nanomaterials are recognized for superior plasmonic properties, with recent advancements expanding their material diversity and applications.

Purpose of the Study:

To review recent progress in the solution-phase synthesis of colloidal plate-like metal nanoparticles.
To provide mechanistic insights into various synthetic strategies and crystallographic habits.
To highlight applications, self-assembly techniques, and future perspectives for 2D metal nanostructures.

Main Methods:

Summarization of solution-phase growth techniques for colloidal metal nanoplates.
Analysis of mechanistic insights and crystallographic habits influencing nanoparticle morphology.
Review of self-assembly strategies and derivative structure synthesis using nanoplates as scaffolds.

Main Results:

Detailed overview of diverse metal nanoplates, including plasmonic and non-plasmonic types.
Emphasis on structure-property relationships and the versatility derived from 2D morphology.
Identification of nanoplates as scaffolds for advanced nanomaterial synthesis.

Conclusions:

Plate-like metal nanoparticles exhibit unique properties and versatility due to their 2D morphology.
Continued research into synthesis mechanisms and self-assembly is crucial for unlocking their full potential.
Future perspectives involve addressing current challenges and exploring novel applications of these nanomaterials.