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Pt/C doped TiO2/SWNTs as catalyst for methanol oxidation
C Theerakarunwong1, Z F Ma, S Phanichphant
1Department of Science, Faculty of Science and Technology, Rajabhat Nakhon Sawan University, 60000, Nakhon Sawan, Thailand.
Journal of Nanoscience and Nanotechnology
|August 3, 2012
Summary
Platinum/carbon doped titanium dioxide/single-walled carbon nanotubes (Pt/C/TiO2/SWNTs) composite catalysts show enhanced catalytic oxidation of methanol. The TiO2/SWNTs support improves catalytic properties compared to undoped or Pt/C doped materials.
Area of Science:
- Materials Science
- Catalysis
- Nanotechnology
Background:
- Titanium dioxide (TiO2) and single-walled carbon nanotubes (SWNTs) are crucial nanomaterials.
- Composite catalysts enhance material properties and catalytic activity.
- Developing efficient catalysts for methanol oxidation is vital for energy applications.
Purpose of the Study:
- To synthesize and characterize novel platinum/carbon doped titanium dioxide/single-walled carbon nanotubes (Pt/C/TiO2/SWNTs) composite catalysts.
- To investigate the catalytic performance of these composites in methanol oxidation.
- To evaluate the role of TiO2/SWNTs as a catalyst support.
Main Methods:
- Preparation of Pt/C/TiO2/SWNTs composite catalysts using a blending method.
- Characterization of the composite structure using transmission electron microscopy (TEM).
- Evaluation of catalytic activity through methanol oxidation reactions.
Main Results:
- Successful synthesis of Pt/C/TiO2/SWNTs with anatase TiO2 structure and uniform Pt/C distribution.
- Confirmation of SWNTs presence via TEM.
- Enhanced catalytic oxidation of methanol observed for Pt/C/TiO2/SWNTs compared to undoped and Pt/C doped materials.
Conclusions:
- TiO2/SWNTs serve as an effective support, significantly enhancing the catalytic properties of Pt/C.
- The developed Pt/C/TiO2/SWNTs composite catalysts exhibit superior performance in methanol oxidation.
- This research offers a promising pathway for advanced catalyst development in electrochemical applications.
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