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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: Jan 12, 2026

Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography

Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography

Published on: September 2, 2017

An Unprecedented Two-Dimensional Pattern in Gold Nanoclusters Bred by Interlocking Au₄ Blocks.

Xu Liu^1,2, Xia Zhou³, Xiaxi Lei⁴

¹State Key Laboratory of Coordination Chemistry, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.

Journal of the American Chemical Society

|November 6, 2025

Summary

Researchers developed a novel 2D gold nanocluster, Au76(p-MBT)42, with a unique interlocked structure. This atomically precise nanocluster exhibits excellent catalytic activity for CO2 electroreduction, paving the way for new nanostructure development.

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Last Updated: Jan 12, 2026

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Area of Science:

Materials Science
Nanotechnology
Catalysis

Background:

Two-dimensional (2D) atomically precise metal nanoclusters are largely unexplored.
Existing metal nanoclusters lack significant structural diversity.

Purpose of the Study:

To synthesize and characterize a novel 2D gold nanocluster.
To investigate its structural stability and catalytic properties.
To explore its potential as a building block for larger nanostructures.

Main Methods:

Synthesis of Au76(p-MBT)42 nanoclusters.
Structural characterization using advanced techniques.
Evaluation of catalytic performance for CO2 electroreduction.

Main Results:

Successful construction of the first 2D gold nanocluster, Au76(p-MBT)42.
The nanocluster features an interlocked Au4 block kernel and a 72-gold-atom 2D pattern.
Demonstrated exceptional catalytic efficiency for CO2 to CO electroreduction in various media.
Identified the interlocking Au4 assembly as crucial for structural stability.

Conclusions:

The novel 2D Au76(p-MBT)42 nanocluster offers unprecedented structural diversity.
Its superior catalytic performance highlights its potential in CO2 conversion.
This work provides a blueprint for constructing advanced topological nanocrystals using mechanically interlocked manipulation.