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Noble Gases

Noble Gases

The elements in group 18 are noble gases (helium, neon, argon, krypton, xenon, and radon). They earned the name “noble” because they were assumed to be nonreactive since they have filled valence shells. In 1962, Dr. Neil Bartlett at the University of British Columbia proved this assumption to be false.

Alkali Metals

Alkali Metals

Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals

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Updated: Dec 1, 2025

A Rapid Synthesis Method for Au, Pd, and Pt Aerogels Via Direct Solution-Based Reduction

A Rapid Synthesis Method for Au, Pd, and Pt Aerogels Via Direct Solution-Based Reduction

Published on: June 18, 2018

Noble Metal Aerogels.

Hengjia Wang¹, Qie Fang¹, Wenling Gu¹

¹College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China.

ACS Applied Materials & Interfaces

|November 11, 2020

Summary

This summary is machine-generated.

Noble metal aerogels (NMAs) are advanced 3D porous nanostructures with diverse applications. This review details their synthesis, gelation mechanisms, and highlights their potential in catalysis and biosensors.

Keywords:

aerogels biosensors electrocatalysis noble metals nanostructures self-assembly

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Area of Science:

Materials Science
Nanotechnology
Chemistry

Background:

Noble metal-based nanomaterials are extensively researched.
Self-assembled porous architectures, particularly noble metal aerogels (NMAs), exhibit unique 3D porous network nanostructures.
NMAs combine noble metal properties with porous nanostructure advantages, finding use in catalysis, sensors, and self-propulsion.

Purpose of the Study:

To provide an overview of recent advancements in noble metal aerogels (NMAs).
To discuss synthetic methods, design engineering, and gelation mechanisms of NMAs.
To highlight applications, focusing on electrocatalysis and biosensors, and outline future prospects.

Main Methods:

Review of typical synthetic methods for NMAs.
Discussion of advanced design engineering strategies for NMAs.
Analysis of gelation mechanism models for NMAs.

Main Results:

NMAs offer unique macroscopic assembly and 3D porous network structures.
Significant progress has been made in understanding NMA synthesis and design.
NMAs show promise in electrocatalysis and biosensing applications.

Conclusions:

NMAs are versatile nanomaterials with significant potential.
Challenges remain in rational design and understanding gelation mechanisms.
Future research should focus on overcoming these challenges for broader applications.