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| 论文编号: |
122214O120140003 |
| 第一作者所在部门: |
902组 |
| 中文论文题目: |
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| 英文论文题目: |
Tuning interactions between zeolite and supported metal by physical-sputtering to achieve higher catalytic performances
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| 论文题目英文: |
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| 作者: |
椿范立
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| 论文出处: |
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| 刊物名称: |
Scientific Reports
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| 年: |
2013
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| 卷: |
3 |
| 期: |
2813 |
| 页: |
1-5 |
| 联系作者: |
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| 收录类别: |
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| 影响因子: |
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| 摘要: |
To substitute for petroleum, Fischer-Tropsch synthesis (FTS) is an environmentally benign process to produce synthetic diesel (n-paraffin) from syngas. Industrially, the synthetic gasoline (iso-paraffin) can be produced with a FTS process followed by isomerization and hydrocracking processes over solid-acid catalysts. Herein, we demonstrate a cobalt nano-catalyst synthesized by physical-sputtering method that the metallic cobalt nano-particles homogeneously disperse on the H-ZSM5 zeolite support with weak
Metal-Support Interactions (MSI). This catalyst performed the high gasoline-range iso-paraffin productivity through the combined FTS, isomerization and hydrocracking reactions. The weak MSI results in the easy reducibility of the cobalt nano-particles; the high cobalt dispersion accelerates n-paraffin
diffusion to the neighboring acidic sites on the H-ZSM5 support for isomerization and hydrocracking. Both factors guarantee its high CO conversion and iso-paraffin selectivity. This physical-sputtering technique to synthesize the supported metallic nano-catalyst is a promising way to solve the critical problems caused by strong MSI for various processes. |
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