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Updated: Feb 7, 2026

Retrograde Labeling of Retinal Ganglion Cells by Application of Fluoro-Gold on the Surface of Superior Colliculus

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Sculpting Superior Subnanometer Catalysts Directly from Inert Gold.

Ce Liu^1,2, Zhaojie Wang², Xiaoqing Lu²

¹State Key Laboratory of Quantum Functional Materials and Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, P. R. China.

Journal of the American Chemical Society

|February 5, 2026

Summary

Researchers developed a new method to create highly active gold catalysts from inert surfaces. This technique engineers undercoordinated sites on subnanometer gold clusters, significantly boosting CO oxidation activity.

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Area of Science:

Catalysis
Materials Science
Surface Chemistry

Background:

Bulk gold is typically inert, limiting its catalytic applications.
Engineering undercoordinated sites is key to enhancing gold's catalytic activity.
Directly creating these sites on gold surfaces is challenging.

Purpose of the Study:

To develop a programmable strategy for generating active subnanometer gold clusters from inert gold surfaces.
To understand the atomistic pathway of gold restructuring under specific reaction conditions.
To achieve superior catalytic activity for CO oxidation.

Main Methods:

Integrated large-scale machine learning molecular dynamics with density functional theory.
Employed thermal-CO pressure cycles to induce atom ejection and cluster formation.
Utilized controlled CO reduction to expose active sites and maintain cluster stability.

Main Results:

Successfully generated metastable subnanometer gold clusters (3-6 atoms) from inert Au(111) surfaces.
Decoded the atomistic pathway of restructuring using computational methods.
Achieved significantly enhanced CO oxidation activity compared to pristine surfaces and single-atom sites.

Conclusions:

Reaction condition engineering is a powerful paradigm for catalyst design.
This method bypasses traditional synthesis routes for creating active gold catalysts.
The sculpted gold clusters offer superior performance for CO oxidation.