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Updated: Jan 24, 2026
08:12
Generation of Zerovalent Metal Core Nanoparticles Using n-2-aminoethyl-3-aminosilanetriol
Published on: February 11, 2016
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Strategy for stabilizing noble metal nanoparticles without sacrificing active sites.
Weikang Ji1, Xuyu Wang, Minni Tang
1School of Chemical Engineering and Technology, Sun Yat-sen University, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, P. R. China. ruizebao@mail.sysu.edu.cn.
Chemical Communications (Cambridge, England)
|May 25, 2019
Summary
Surface fluorination of platinum (Pt) nanoparticles on titanium dioxide (TiO2) prevents particle sintering. This strategy enhances catalytic activity for toluene oxidation by improving metal-support interactions.
Area of Science:
- Materials Science
- Catalysis
- Surface Chemistry
Background:
- Nanoparticle sintering is a major challenge in catalysis, leading to reduced activity and stability.
- Titanium dioxide (TiO2) is a widely used support material for platinum (Pt) catalysts.
- Improving metal-support interactions is crucial for enhancing catalytic performance.
Purpose of the Study:
- To develop a facile surface fluorination strategy for Pt/TiO2 catalysts.
- To investigate the effect of fluorination on Pt nanoparticle sintering and metal-support interaction.
- To evaluate the performance of fluorine-tailored Pt/TiO2 in toluene oxidation.
Main Methods:
- Surface fluorination of TiO2 support.
- Preparation of Pt/TiO2 catalysts.
- Characterization of catalyst structure and properties (e.g., sintering resistance, electronic interaction).
- Evaluation of catalytic activity in toluene oxidation.
Main Results:
- The fluorination strategy effectively restricted Pt nanoparticle sintering.
- Enhanced metal-support interaction was observed due to improved electronic interaction.
- The fluorine-tailored Pt/TiO2 catalyst demonstrated excellent sintering resistance.
- Significant activity enhancement was achieved in the catalytic oxidation of toluene.
Conclusions:
- Surface fluorination is a facile and effective strategy for enhancing the stability and activity of Pt/TiO2 catalysts.
- The improved performance is attributed to restricted sintering and enhanced metal-support electronic interaction.
- Fluorine-tailored Pt/TiO2 shows great potential for applications in catalytic oxidation reactions.
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