In a study of the preparation of Pt/C eletrocatalysts, a set of modified Vulcan XC-72R carbon black supports have been prepared by nitric acid or hydrogen peroxide oxidation, or thermal treatment in nitrogen flow. The supports obtained by these methods had largely identical pore structure, but different from the amount of surface oxygen-containing groups. The physical and surface chemical nature of the supports was characterized by XPS, BET, FTIR and acid-base titration. The above pre-treatment-carbon supported platinum catalysts were prepared by impregnation-reduction method with formaldehyde as the reducing agent, H2PtCl6 as precursor. The effect of the amount of surface oxygen-containing groups of Vulcan XC-72R carbon black on Pt/C catalysts dispersion was studied by the characterization with XRD and TEM. It has been found that decreasing the amount of surface oxygen-containing groups on carbon supports favored the platinum dispersion on the Pt/C catalysts.
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ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology
May 23–25, 2005
Ypsilanti, Michigan, USA
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-3764-5
PROCEEDINGS PAPER
Preparation of Platinum Supported on Carbon Blacks With Different Surface Chemical Characteristics
Rong-Li Jia,
Rong-Li Jia
Tianjin University, Tianjin, China
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Cheng-Yang Wang,
Cheng-Yang Wang
Tianjin University, Tianjin, China
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Bin Zhu
Bin Zhu
Royal Institute of Technology, Stockholm, Sweden
Search for other works by this author on:
Rong-Li Jia
Tianjin University, Tianjin, China
Cheng-Yang Wang
Tianjin University, Tianjin, China
Bin Zhu
Royal Institute of Technology, Stockholm, Sweden
Paper No:
FUELCELL2005-74138, pp. 235-238; 4 pages
Published Online:
October 13, 2008
Citation
Jia, R, Wang, C, & Zhu, B. "Preparation of Platinum Supported on Carbon Blacks With Different Surface Chemical Characteristics." Proceedings of the ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology. 3rd International Conference on Fuel Cell Science, Engineering and Technology. Ypsilanti, Michigan, USA. May 23–25, 2005. pp. 235-238. ASME. https://doi.org/10.1115/FUELCELL2005-74138
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