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Updated: Jul 9, 2026
10:19
Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation
Published on: July 18, 2017
Precursor-Engineered Strategy for Constructing Supported Tetra-Atom Pt Clusters to Boost Propane Dehydrogenation
Panpan Li1, Guangsheng Liu2, Najie Zhuang1
1State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China.
ACS Nano
|July 8, 2026
Summary
Atomically precise platinum nanoclusters (Pt4/OCNT) significantly boost propane dehydrogenation (PDH) efficiency and propylene selectivity. This breakthrough offers a stable, selective alternative to commercial catalysts.
Area of Science:
- Catalysis
- Materials Science
- Nanotechnology
Background:
- Commercial platinum catalysts for propane dehydrogenation (PDH) suffer from unclear active sites, low stability, and poor propylene selectivity.
- Atomically precise platinum catalysts offer a solution with defined structures and tunable electronic properties.
Purpose of the Study:
- To construct and evaluate atomically precise Pt4 nanoclusters supported on oxygen-functionalized carbon nanotubes (Pt4/OCNT) for enhanced PDH performance.
- To investigate the catalytic mechanism and structure-activity relationship of Pt4/OCNT.
Main Methods:
- Precursor-engineered synthesis of Pt4 nanoclusters on OCNT.
- Advanced characterization techniques (e.g., in situ infrared spectroscopy).
- Density functional theory (DFT) calculations.
Main Results:
- Pt4/OCNT demonstrated 99.6% propylene selectivity and superior space-time conversion at 500 °C, outperforming Pt1/OCNT and industrial Pt/C.
- DFT and in situ studies revealed that Pt4/OCNT stabilizes key intermediates via cooperative multisite interactions, lowering the PDH activation barrier.
- Weak propylene adsorption on Pt4/OCNT suppressed side reactions and improved selectivity.
Conclusions:
- A precursor-engineered strategy successfully created atomically precise Pt4/OCNT with controlled nuclearity.
- Direct resistive heating enhanced catalytic performance during PDH.
- This work provides a generalizable strategy for designing atomically precise supported cluster catalysts (APSCCs).
Keywords:
direct resistive heatingprecursor-engineered strategypropane dehydrogenationsupported clustertetra-atom Pt clustersMore Related Videos
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