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| 论文编号: |
122214O120120379 |
| 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: |
A Solid-State Combustion Method towards Metallic Cu–ZnO Catalyst without Further Reduction and its Application to Low-Temperature Methanol Synthesis
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| 论文题目英文: |
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| 作者: |
谭猗生
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| 论文出处: |
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| 刊物名称: |
ChemCatChem
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| 年: |
2012
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| 卷: |
4 |
| 期: |
0 |
| 页: |
863-871 |
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| 收录类别: |
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| 影响因子: |
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| 摘要: |
A series of Cu–ZnO catalysts were prepared by using a solid-state combustion method with metal nitrates and citric acid.This method was simple, waste water free, and did not require a reduction step. If the precursors were burnt in an argon at-mosphere, H2 and CH4 were emitted in the decomposition of metal citrate complexes and acted as reducing agents to yield metallic Cu from Cu2+ in the chelated compounds. Analysis of XRD patterns revealed that the precursors burnt at 523 K for 1 h in the argon atmosphere were converted into pure Cu spe-cies. TPR analysis of the burnt catalysts without further educ-tion illustrated that almost no hydrogen was consumed. How-ever, a part of amorphous carbon and carboxylates were left in the burnt catalysts. Compared with formerly reported Cu–ZnO catalysts prepared by the sol–gel combustion method, the cat-alysts prepared by the solid-state combustion method had higher activity and methanol selectivity. |
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