Controlled synthesis of carbon nanofibers over electrolessly plated metal foam catalysts on polyurethane for fuel cell applications
Autor: | Yuexia Li, Jianhuang Zeng, Ben deGlee, Zhen Liu, Yangcheng Jiang, Da-zhao Li |
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Rok vydání: | 2017 |
Předmět: |
Materials science
Carbon nanofiber Mechanical Engineering chemistry.chemical_element 02 engineering and technology Metal foam Chemical vapor deposition 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound Nickel Chemical engineering chemistry Acetylene Mechanics of Materials General Materials Science Composite material 0210 nano-technology Cobalt Polyurethane |
Zdroj: | Journal of Materials Science. 53:479-491 |
ISSN: | 1573-4803 0022-2461 |
Popis: | Synthesis of carbon nanofibers (CNFs) with different morphologies has attracted great attentions due to their broad energy applications. Chemical vapor deposition (CVD) method is often employed to produce CNFs, and the morphology of the resulting CNFs is largely dependent on the catalysts used in this process. In this work, 3-D ordered polyurethane foam has been electrolessly plated with a layer of nickel catalysts, which are then used to catalytically decompose acetylene to yield CNFs via CVD. Catalysts with different compositions (nickel, cobalt, copper or their alloys) can be made through changes in the electroless plating baths and then used to synthesize CNFs with different morphologies. The as-prepared CNFs synthesized in this work can be used directly as supports for fuel cell electrocatalysts. The method reported in this work offers a general protocol to synthesize a wide variety of carbon filaments with tailored compositions and properties. |
Databáze: | OpenAIRE |
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