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| 论文编号: |
122214O120110129 |
| 第一作者所在部门: |
909组 |
| 中文论文题目: |
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| 英文论文题目: |
Synergistic Combination of Plasma Sputtered Pd-Au Bimetallic Nanoparticles for Catalytic Methane Combustion
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| 论文题目英文: |
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| 作者: |
郭向云
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| 论文出处: |
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| 刊物名称: |
The Journal of Physical Chemistry: C
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| 年: |
2011
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| 卷: |
115 |
| 期: |
22 |
| 页: |
11240 |
| 联系作者: |
郭向云 |
| 收录类别: |
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| 影响因子: |
4.524
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| 摘要: |
PdAu bimetallic nanoparticles supported by silicon carbide have been prepared by plasma sputtering deposition and employed as the catalyst for methane combustion. It is found that the bimetallic nanoparticles consist of tightlycoupled Pd and Au particles, which are neither PdAu alloyed
nor coreshell structured. The catalytic activity increases with the Pd loading in the catalysts. When the temperature is higher than 520 C, Pd catalysts have an obvious drop in the catalytic activity due to the decomposition of PdO. However, the introduction of Au can delay and weaken the drop. It is indicated that there exists a synergistic combination between
Pd and Au: oxygen transfers from Pd to Au at a temperature lower than 520 C and from Au to Pd at higher temperature.Transmission electron microscopy and X-ray photoelectron spectroscopy results further confirm the synergistic combination. |
| 英文摘要: |
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| 外单位作者单位: |
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| 备注: |
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