Related Experiment Video
Updated: Jul 11, 2026
08:19
Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles
Published on: March 2, 2016
18.9K
Anchoring Gold Nanoparticles on Functionalized Halloysite Nanotubes: Density Functional Theory and Experimental
Ludovico Guercio1, Francesco Ferrante1, Marco Bertini1
1Dipartimento di Fisica e Chimica "Emilio Segrè", Università degli Studi di Palermo, Viale delle Scienze Ed. 17, 90128 Palermo, Italy.
The Journal of Physical Chemistry. C, Nanomaterials and Interfaces
|September 24, 2025
Summary
Functionalized halloysite nanotubes stabilize gold nanoclusters, influencing their structure and enabling potential use in heterogeneous catalysis. This research combines theory and experiments for novel material development.
Area of Science:
- Materials Science
- Nanotechnology
- Catalysis
Background:
- Gold nanoparticle properties depend on size, dimensionality, and support interactions.
- Halloysite nanotubes (HNTs) are clay minerals with potential as support materials.
- Functionalization of HNTs can modify their surface properties for anchoring nanomaterials.
Purpose of the Study:
- To investigate the structural and electronic properties of gold nanoclusters anchored on amino-functionalized halloysite nanotubes.
- To understand the interaction between gold clusters and the functionalized HNT support.
- To assess the potential of these hybrid materials for catalytic applications.
Main Methods:
- Combined theoretical (Density Functional Theory) and experimental (synthesis and characterization) approaches.
- DFT calculations to explore geometric and electronic characteristics of anchored Aun clusters (n=1-20).
- Experimental synthesis of gold nanoparticles on functionalized HNTs and material characterization.
Main Results:
- A transition from 2D to 3D cluster structure occurred at lower atom counts than in isolated clusters due to HNT interactions.
- Optimized geometries and Au-N interaction distances were analyzed.
- Successful synthesis and characterization of gold nanoparticles on functionalized HNTs.
Conclusions:
- Halloysite-based hybrid materials effectively stabilize small gold clusters.
- The interaction with halloysite silanolic groups influences gold cluster structure.
- These materials show promise as heterogeneous catalysts.
