Low-platinum high active core-shell structure catalyst and preparation method thereof
A technology of catalyst and shell structure, applied in the field of low-platinum high-activity core-shell structure catalyst and its preparation, can solve the problems of expensive platinum and achieve the effects of solving cost and performance, easy control of reaction conditions, and simple preparation process
Inactive Publication Date: 2010-03-10
NORTHWEST NORMAL UNIVERSITY
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The invention provides a high active core-shell structure catalyst used for low temperature fuel cell. The preparation method comprises the following steps: adopting carbon powder or carbon nanotubesas carrier, coating single-layer or two-layer platinum which is reduced by reductant, on the metal-based core to form a core-shell structure and loading the structure on carbon powder or carbon nanotubes carrier. The catalyst has low platinum loading and high catalytic activity so that platinum loading is low, the activity of the catalyst is high; the contradiction between the cost and performanceof catalyst is effectively solved, and the high active core-shell structure catalyst plays an extremely important role in solving the current problems of the fuel cell.
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Property | Measurement | Unit |
Particle size | 4.6 | nm |
Particle size | 4.7 | nm |
Particle size | 5.2 | nm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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