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Updated: Feb 17, 2026

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

Sinter-Resistant Platinum Catalyst Supported by Metal-Organic Framework.

In Soo Kim^1,2, Zhanyong Li³, Jian Zheng⁴

¹Materials Science Division, Argonne National Lab, 9700 S Cass Ave., Argonne, IL 60439, USA.

Angewandte Chemie (International Ed. in English)

|December 6, 2017

Summary

This summary is machine-generated.

Platinum single atoms and few-atom clusters on zirconia nodes of a metal-organic framework (MOF) show high activity for ethylene hydrogenation. This novel catalyst resists sintering up to 200°C, demonstrating a versatile synthesis approach.

Keywords:

atomic layer deposition (ALD)heterogeneous catalysis metal-organic frameworks (MOFs)platinum sinter-resistance

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Area of Science:

Materials Science
Catalysis
Nanotechnology

Background:

Metal-organic frameworks (MOFs) offer high surface area for catalyst support.
Controlling metal cluster size is crucial for catalytic performance.
Atomic layer deposition (ALD) is a precise method for material synthesis.

Purpose of the Study:

To synthesize and characterize single platinum atoms and few-atom clusters on MOF NU-1000.
To evaluate the catalytic activity and stability of these Pt clusters for ethylene hydrogenation.
To investigate the structural and electronic properties of the catalyst under reaction conditions.

Main Methods:

Targeted vapor-phase synthesis and atomic layer deposition (ALD) within MOF NU-1000.
In situ infrared (IR) spectroscopy to monitor catalytic species.
Operando X-ray absorption spectroscopy (XAS) and X-ray pair distribution function (PDF) analyses.
Density functional theory (DFT) calculations for reaction pathway elucidation.

Main Results:

Uniform installation of single Pt atoms and few-atom clusters on zirconia nodes of NU-1000.
High catalytic activity for ethylene hydrogenation with Pt clusters, resistant to sintering up to 200°C.
Identification of both single atoms and clusters, dependent on synthesis conditions, with unique bonding environments and stability.

Conclusions:

ALD in MOFs is a versatile strategy for rational synthesis of size-selected noble metal clusters.
Site-isolated Pt clusters exhibit enhanced catalytic performance and stability.
The study provides fundamental insights into catalyst structure-activity relationships for supported clusters.